NTU: Research Category: Energy

This category covers:

Ecomaterials and Clean Energy Materials Research
Energy Economics
Energy Efficiency
Energy, Energy & Catalysis
Energy Distribution
Energy Storage

Name	Research Interests
Asst Prof (Steve) Cuong Dang	- OptoElectronic Devices - Nano-Photonics - LEDs, Lasers, Quantum Emitters - Nano-Materials
Assoc Prof Alessandro Romagnoli	Alessandro's research interests are: - Waste heat recovery (Thermo-electric generation, Boosting technology and turbocharging, Organic ranking cycles) - Battery thermal management - Thermal energy storage - Propulsion for UAVs
Assoc Prof Alfred Tok Iing Yoong	1) Carbon-based Field-Effect Transistor Sensors The biosensors market, which is currently at USD 9.9 billion, is expected to reach USD 18.9 billion in 2019 (GIA Report, 2014) propelled by the growing population and health issues. Our group capitalizes on this emergent market and researches on disposable and low-cost sensor suitable for real-time sensing in field conditions. Our group focuses on sensors for biological and gas detection applications. 2) Synthesis of Nanostructured Materials using Atomic Layer Deposition (ALD) Atomic layer deposition (ALD) has evolved to be a unique tool for nanotechnology with atomic level control of the depositions, 3D conformity and homogeneity. Film depositions can be realized for complex non-planar topographies for a wide range of applications such as energy conversion and storage, nanoparticle catalysts, nanostructures for drug delivery, gas separations, sensing, and photonic applications. Our group focuses on ALD materials for solar cell, hydrogen generation and smart window applications. 3) Hard & Tough Materials for Ballistic Protection Application The next generation of military vehicular and soldier system requires light-weight materials with high strength-to-weight ratio. Our research focuses on the synthesis and densification of nanostructured materials & desired composite architecture to significantly raise the ballistic protection capability. The B-C-N-O group of compounds are potential candidates to form novel materials for ballistic protection application as they inherent the unique properties from both boron nitride and boron carbide which are known for their light weight, high hardness, low friction coefficient and high wear resistance. Prof Tok leads a team of collaborators in armour material research ranging from high temperature synthesis of novel superhard materials and consolidation by state-of-the-art Spark Plasma Sintering to advanced characterisation techniques such as depth of penetration test using Two-Stage Light-Gas Gun. 4) Institute for Sports Research Our group is involved in the Institute for Sports Research, working on the damping property of midsoles which is based on carbon nanotube (CNT). CNT’s high aspect ratios (length/diameter) is particularly desirable for mechanical reinforcement, and it is found that the vertical aligned (VA)CNTs perform well in damping, to dissipate the energy absorbed under compression (Figure 7). Our present job is to tune the damping property of VACNT by adjusting the length, diameter and area density etc. parameters and try to reinforce the polymer with VACNT to fabricate midsole material with better cushion property. 5) NRF-CREATE In accordance with the objectives of the Energy Thrust Program of the NRF-CREATE Project, our group is focused on the design and synthesis of highly functional nanomaterials, which enables energy harvesting and conservation. Recently, novel graphene oxide synthesized nanoballs and nanoflowers were synthesized. These exhibit potentials for supercapacitors and energy applications. In general, these activities results in above 50 publications, 17 patent applications and projects discussions with companies regarding commercialization possibilities.
Assoc Prof Ali Iftekhar Maswood	Design and Evaluation of a New Converter Control Strategy for Near Shore Tidal Turbines Five-Level Multiple-Pole PWM AC-AC Converters with Reduced Components Count Novel Converter topology for hybrid Wind & Solar Energy Maximum Power Tracking Control Strategies using Fuzzy logic and Particle Swram Optimization Novel DC-DC buck-boost Converter for solar/Fuel Cell optimal power txtraction
Asst Prof Amer Mohammad Yusuf Mohammad Ghias	1- High Power Density Wide-Band-Gap Converters 2- Multilevel Converters - Fault-Tolerant Converters - Advanced Modulation Techniques 3- Novel Converters Topologies 4- Flexible AC Transmissions and High voltage DC Current 5- Micro-grid - Hybrid Energy Storage - Advanced Control Methods Opening Positions: 1- Research Fellow 2- Research Associate 3- Ph.D. Position 4- MEng Position
Assoc Prof Ang Diing Shenp	1. Reliability physics and characterization of nanoscale transistors (negative-bias temperature instability, hot-carrier effects, gate oxide breakdown, low frequency/RF noise, metal gate/high-kappa gate stack, non-volatile memories, silicon-on-insulator transistors, nanowire devices etc.) 2. Nano-characterization techniques (conductive atomic force microscopy, high-resolution transmission electron microscopy and associated anaytical techniques for alternative gate dielectrics, nanowire devices etc.) 3. Characterization of novel devices (e.g. tunneling FETs, novel memories etc.)
Assoc Prof Anutosh Chakraborty	(1) Adsorption Thermodynamics. (2) Adsorption/Absorption refrigeration/Heat Pump Systems and Desalination (3) Adsorption Gas (Methane/Hydrogen) Storage, Surface science. (4) Pool boiling at sub-atmospheric pressure, Flow boiling, Condensation. (5) Micro/Nano-Scale Transport Phenomena. (6) Bulk and Nanostructured thermoelectric device and their simulation tools.
Assoc Prof Aravind Babu Dasari	Dr Dasari’s major research emphasis is on the development of in-depth understanding of the various facets of processing-structure-property relations in hybrid polymer nanocomposites to achieve synergistic properties for different end applications. These facets include: 1. Thermal stability and flame retardancy (with eco-benign agents) 2. Functional properties (electrical/thermal conductivities, biodegradability and UV shielding) 3. Electrospinning techniques 4. Wear/scratch damage at different scales (macro/micro/nano) 5. Deformation and Fracture mechanisms 6. Active food packaging
Prof Atsushi Goto	Polymer Chemistry and Polymer Materials 1) Controlled syntheses of polymers 2) Development of new living radical polymerization via organic catalysis 3) Creation of new advance polymer materials using structurally controlled polymers
Assoc Prof Bo An	Artificial intelligence, multi-agent systems, game theory, reinforcement learning, automated negotiation, resource allocation, and optimization
Assoc Prof Cai Wenjian	Prof Cai's areas of expertise are system modelling, control and optimization, multivariable system identification and control, sensor and instrumentation, mechanical system simulation and design, and intelligent systems. His current research works focus on industry applications in building HVAC processes, renewable energy processes and environmental processes.
Assoc Prof Cesare Soci	Our research embraces several key areas of nanoelectronics and nanophotonics, including organic semiconductors and plasmonic materials, as well as new ideas on specialty optical fibers and “cognitive photonic networks”. We are particularly interested in fundamental properties of materials emerging from small dimensionality, large interface area, hybridization and artificial nanostructuring.
Dr Chan Chee Keong	Currently, Dr Chan is attached to the Information Engineering Division, lecturing in subjects related to computer systems, artificial intelligence, software engineering and cyber security. Through his years in NTU, he has published about 30 research papers in conferences, journals and book chapter. Dr Chan has also provided numerous consultations to the industries. His current research interest areas include data mining (text and solar radiation data mining), evolutionary algorithms (scheduling and games) and renewable energy.
Prof Chan Siew Hwa	Prof Chan's areas of expertise are fuel cells, fuel reforming and internal combustion engines.
Asst Prof Chan Wai Lee	Combustion modeling; Combustion instability; Computational Fluid Dynamics (CFD); Flamelet models; Fluid-structure interactions; Gas turbine engines; High-fidelity simulations; High-speed air-breathing vehicles; Large-eddy simulations; Numerical combustion; Pollutant emission; Turbulent non-/reacting flows
Assoc Prof Chen Chien-Ming	Corporate social & environmental responsibility; operational strategies; organizational productivity
Assoc Prof Douglas Leslie Maskell	Associate Professor Douglas Maskell conducts research in the areas of reconfigurable computing systems, algorithm acceleration, embedded applications & architectures and renewable energy. He is an active member of both the Energy Research Institute @ NTU (ERI@N) and the Centre for High Performance Embedded Systems (CHiPES). His principle research focus is in the area of reconfigurable computing. In particular, he examines research problems that aim to overcome the emerging challenges introduced by the trend to incorporate reconfigurable fabrics into embedded and performance computers so as to significantly improve the overall performance of the computing system. This effort involves the development of tools, algorithms & architectures and system level modelling, simulation & design to improve the performance & management of the computing resources. Research areas include: efficient utilisation of FPGA hardware & architecture resources for rapid and near routeless placement & fast configuration; system resource management & inter-module communications for run-time hardware systems and involves investigations at the tools, algorithms and architecture levels. He also applies his modelling and simulation expertise to projects in the renewable energy field. This initiative examines PV module and systems efficiency in tropical climates. Specifically, this work investigates: novel algorithms and architectures for maximum power point tracking, including hybrid architectures, operating under partial shading conditions and sudden irradiance changes; inverter architectures; and concentrated PV (CPV) systems.
Asst Prof Dr Kedar Hippalgaonkar	Asst. Prof. Hippalgaonkar’s interests are in designing functional materials, especially for energy applications. He has fundamental knowledge in solid state physics, 1D (nanowires), 2D (TMDCs) as well as inorganic-organic (hybrid) materials. His approach to materials by design is built on creating and utilizing materials data by high-performance computing and high-throughput experiments to synthesize and characterize materials for optical and electronic properties. Specifically, he is leading projects on the application of high-throughput experimentation, optimization and machine learning on industry and academic projects on batteries, thermoelectrics and catalysis. In addition, he is interested in the use of material descriptors, machine learning and data science for materials discovery. His background is in transport properties of materials specifically in understanding their thermal, optical and thermoelectric properties. He is keen on developing tools such as process optimization, design of experiments and materials and process fingerprinting from materials development to device applications.
Prof Fan Hongjin	1. Energy Materials and Physics. - Nanomaterials for solar water splitting via photoelectrochemical cells - Electrochemical energy storage (Li-ion and Na-ion batteries) - Atomic layer deposition in energy applications 2. Optical Properties of Low-Dimensional Semiconductors - Semiconducting nanowires - 2D semiconductors especially their heterostructures, and nanostructured hybrid perovskites
Assoc Prof Fei Duan	(1) Kinetics of phase changes (2) Evaporation cooling and thermal management (3) Energy/exergy analysis on thermocapillary evaporators (4) Thermal analyses of energy systems (5) Development of smart materials
Dr Foo Yi Shyh Eddy	His research interests are multi-agent systems, microgrid energy management systems, electricity markets, Power Hardware in the Loop and renewable energy resources.
Assoc Prof Gooi Hoay Beng	Prof Gooi's areas of expertise are Energy Management Systems, Forecast & Scheduling Applications, and Network Applications. His current research focuses on Microgrid Energy Management Systems, Electricity Markets, Spinning Reserve, Energy Efficiency and Renewable Energy Sources.
Prof Hng Huey Hoon	Prof Hng's main research interest is in the understanding of processing-microstructure-property relationships of nanomaterials. The research covers a wide range of experimental analytical techniques such as electron microscopy and X-ray diffraction analysis. Such techniques enable the characterization of nanometre scale phases and provide an in-depth understanding of the materials' properties. Her current research works focus on the synthesis of inorganic materials using various processing techniques. The materials of interest are thermoelectric and energetic materials including metal alloys, intermetallics and functional ceramics.
Dr Ho Jin Yao	Condensation, boiling, heat transfer in porous media, thermal energy storage and additive manufacturing.
Dr Hong Yan	His current research interests are: -Plant secondary metabolism and genetic manipulation -Genetic modification of plant: technology, field trial and regulatory approval -Genomics and genetics of tropical tree species -Plant breeding
Prof Hu Xiao	Composites and Nanocomposites Functional Polymers: Synthesis and Assembly Nanocrystals Synthesis and Modification (including rods, dots and tubes) Organic-inorganic Hybrid Materials
Prof James Wang	Dr. James Wang's current research interests include design and manufacture of electric and hybrid-electric VTOL (vertical takeoff and landing) aircraft and vehicles, UAV, drones, and rotorcraft/helicopters, in particular on innovative architectures and enabling technologies. The enabling technologies include electric propulsion systems, electric motors, power generation, high energy density rechargeable batteries, light weight structure, thermo plastic manufacturing, lean manufacturing, autonomous control, advance control laws. In addition, Dr. Wang's research interest include formulation of technology roadmap and strategy, business and marketing strategy, creating entrepreneurial startups, and exploitation of disruptive technologies for outside-the-box usages.
Asst Prof Jason England	Bioinspired activation of small molecules and inert X-H bonds. More specifically, at present we seek to develop first-row late transition metal complexes able to (1) activate O2 for catalytic oxidation of unactivated C-H bonds, thereby allowing more straightforward synthesis of a wide range of organic molecules; (2) promote efficient and selective reduction of O2 to water (ORR), which is key to the function of fuel cells; and (3) electrocatalytically oxidize H2O to O2 in an efficient manner, which is pivotal to the development of photovoltaic cells designed to harvest and store solar energy in chemical form. Nature is able to catalyze all of the aforementioned chemical transformations in a highly efficient manner, and does so under ambient conditions using enzymes containing highly abundant first-row transition metals. Being able to reproduce the general function of these enzymes using small molecules would be highly desirable, and that is what our research aims to achieve.
Assoc Prof Jason Xu Zhichuan	• Electrocatalysis • Electrochemical energy storage • Electrochemical interfaces • Electrochemical sensors • Magnetic nanomaterials • Chemistry for materials recycle
Prof Josep Pou	His research interests include power electronics, multilevel converters, energy generation from renewable sources, energy storage, power quality, HVDC transmission systems, and more electric aircraft and vessels. Note: Currently looking for research fellow candidates (postdocs) to work on power electronic systems. Interested candidates can contact me directly (only candidates with outstanding academic records will be considered).
Assoc Prof K Radhakrishnan	Epitaxial growth and characterization of compound semiconductor materials including III-Nitrides. Development of advanced structures for gas sensing, biosensing and optical detectors and emitters. Device fabrication and characterization for various electronic and photonics applications.
Prof Lalit Kumar Goel	Power system reliability. Cost/benefit considerations. Deregulated power markets. Renewable energy. Power system analysis.
Prof Lam Yeng Ming	Yeng Ming’s research interests are in the understanding and the application of self-organization of peptides and polymers. She has studied a wide range of self-assembled systems in selective solvents and thin films. Her research also includes the application of self-assembly on the synthesis of nanostructures/nanoparticles, nanotemplating, organic memory, photovoltaics, etc. Yeng Ming has also demonstrated through the use of both experiments and calculations, that it is possible to accurately parameterize copolymer systems. The mesoscale morphology of the copolymer system can be predicted accurately through simulation making use of the dynamic mean field density method. This allows for a simple approach in the design of copolymer for self-assembly and to understand the conditions for self-assembly. This work resulted in the publication of numerous papers and 2 book chapters. She has also obtained research funding for self-assembly work in other applications such as surface modifications and development of nanoreactors for controlled synthesis of nanomaterials. Her most recent funding obtained through the Competitive Research Programme funding from National Research Foundation as a Project PI under a S$10 million programme on Nanonets: New Materials, Devices for Integrated Energy Harvesting.
Assoc Prof Lau Wai Man	Dr Lau's areas of expertise are Fluidization, Multiphase Flow, and Reactor Design. His current research works focus on the kinetic and hydrodynamic study of Fisher-Tropsch Synthesis process, particle formulation and inhaler design in dry powder inhalation, and process engineering study of microalgae cultivation. For more information, please visit his research homepage at: http://www.ntu.edu.sg/home/WMLau/
Dr Lee Hiang Kwee	Surface-enhanced Raman scattering Metal-organic framework Surface engineering Particle-assembled soft interfaces Electrochemistry Energy harvesting and storage Multifunctional hybrid materials Nanotechnology/nanoscience Material chemistry Gas-to-fuel conversion
Assoc Prof Lee Jong-Min	Prof Lee's research interest is in analysis and design of electrochemical systems and development of ionic liquid as a green solvent for chemical and biomedical reactions and of nanomaterials and of their assemblies for applications in biomedical, optical, and electronic fields. Currently, his research interests focus on: i) the electrodeposition of mesoporous materials in a dual template utilizing porous anodic alumina and lyotropic liquid crystal for electrochemical energy systems, ii) the development of ionic liquids as media for chemical and biomedical reactions, iii) the extraction of metal ions using ionic liquids, iv) and the deconstruction of biomass feedstock using ionic liquids for production of fermentable sugars.
Assoc Prof Lee Peng Hin	Reliable control with performance. Assistive technology. Energy Managements
Asst Prof Lee Seok Woo	1. High density material for lithium-ion batteries - Mechanics of battery materials - Thermal behavior of battery materials - Manufacturing of high performance electrode for LIB - Beyond lithium 2. Electrochemical systems for thermal energy harvesting - Materials of highly efficient thermal energy conversion - Electrochemical devices for body heat conversion - Grid-scale waste heat harvesting system
Assoc Prof Leong Kai Choong	Single- and two-phase heat transfer (solidification, melting, boiling and condensation), 3D printing of cooling devices for the thermal management of electronic packages, Adsorption cooling systems.
Asst Prof Leong Wei Lin	- Organic and Molecular Electronics - Organic Electrochemical Transistors - ReRAM devices and physics - Interfaces and Surface Science - Printing processes for large-area and flexible electronics We are always looking for highly motivated PhD students and postdocs in the related fields. Please enquire independently.
Assoc Prof Li Lin	(i) rheological studies of gels and hydrogels, (ii) synthesis of nanoparticles for drug & gene delivery, (iii) 3D printing with hydrogels, (iv) 4D printing, (v) 3D food printing
Assoc Prof Ling Xing Yi	The research programs in our laboratory combine chemistry, nanotechnology, and materials science approaches to develop functional nanostructures with novel catalysis, plasmonic and sensing applications. Our research activities involve nanoparticle synthesis, surface chemistry, self-assembly, nanopatterning, nanofabrication, and materials and device characterization. Nanostructures for optimal solar energy conversion The amount of solar energy striking the earth’s surface in one hour is enough to power human activity for one year. Hence, solar energy provides one of the best options to sustain human civilization. An efficient photosystem is able (1) to absorb a large amount of broadband solar energy at full solar spectrum, (2) convert photons into electron-hole pairs efficiently, and (3) perform catalysis reaction to produce fuel at high yield. Currently, most photocatalysts suffer from low reaction efficiency. The main goal in this project is to design nanostructures with artificial photosynthesis properties to achieve high solar fuel conversion. Our strategy is focused on fabricating well-defined nanostructures by combining bottom-up self-assembly and top-down nanofabrication techniques. Important information will be gained to drive the solar-to-fuel photocatalysis towards commercialization and to reduce human’s dependence on non-renewable fossil fuel.
Assoc Prof Liu Bin	Architected nanomaterials for solar-to-fuel and solar-to-electric conversion. Photocatalysis for air and water treatment. Nanocomposites. Electrocatalysis.
Asst Prof Liu Wen Paul	Chemical looping applications Selective methane conversion Carbon capture and utilisation
Assoc Prof Liu Zheng	Synthesis of large-scale and high-quality two-dimensional (2D) materials, e.g. graphene, hexagonal boron nitrides (h-BN), transition metal dichalcogenides (TMDs); Synthesis of ternary 2D materials such as h-BNC and doped TMDs; Hybridized architectures of 2D materials; Applications of 2D materials on high-performance optical and electronic devices.
Prof Lou Xiong Wen	Nanomaterials for High-performance Lithium-ion Batteries and supercapacitors, Hollow nanostructures, photocatalysis, electrocatalysis
Prof Lua Aik Chong	Professor Lua's areas of expertise are the development of activated carbons for adsorbing gaseous and aqueous pollutants and measurement of flow rates. His current research activities are the preparation and characterization of activated carbons, adsorption technology for air pollution and water filtration, development of polymeric membranes for gas separation, measurement of flow rates using fluidic flowmeters and measurements of particulates and gas emissions from diesel engines.
Assoc Prof Lydia Helena Wong	1. Novel materials for organic photovoltaic: molecular/structural modification for improved charge separation and transport, integration of organic/inorganic nanomaterials for improved carrier conductivity, mobility enhancement of organic molecules, 2. Organic photovoltaic devices: architectural design by bulk heterojunction, tandem cells, organic/inorganic hybrid cells; fabrication integration techniques of nanomaterials. 3. Synthesis and characterizations of nanomaterials: Group IV (Si, SiGe, Ge) nanowires, metal-oxide nanowires and nanoparticles (ZnO, TiO2), nanoparticle-decorated nanowires 4. Materials for nanoelectronic devices: growth, thermal stability and relaxation mechanisms of semiconductor heteroepitaxy structures , fabrication and electrical behavior of advanced gate stack for Si-based CMOS, nanomaterials for advanced electronic devices.
Asst Prof Lyu, Chen	Automated Driving Human-Machine Systems Intelligent Electric Vehicles Driver-Automation Collaboration Vehicle Dynamics and Control Cyber-Physical Systems
Assoc Prof Massimo Pica Ciamarra	We are interested in understanding the physics of disordered many-particle systems via statistical mechanics tools and numerical simulations, which is arguably one of the most pressing needs in material science. Such an understanding is crucial to 1) design atomic or polymeric disordered materials with specific mechanical and rheological properties; 2) rationalize natural catastrophic events, such as earthquakes and avalanches; 3) improve the many industrial products and processes handling particulate media, from the food to the pharmaceutical and the electronic industry. The main difficulty is the developing of a theoretical framework connecting the macroscopic and the microscopic scales in the presence of disorder. Some topics of specific interest are: 1. glass transition 2. suspensions of soft deformable particles, e.g. microgels 3. liquid with density anomalies 4. rheological properties of disordered particulate systems, with applications to earthquakes 5. pattern formation in driven particulate systems, e.g. segregation 6. transport properties in disordered media
Asst Prof Matteo Seita	Dr. Seita’s research is focused on the development of novel metallic materials with improved reliability and tailored properties using additive manufacturing technology. Areas of current interest are: - Microstructure control during metal additive manufacturing; - Development of novel additive manufacturing techniques; - High-throughput characterization of polycrystalline metals; - Grain boundary crystallography-property relationships; - Environment-assisted failure of structural metals and metal alloys.
Asst Prof Ming-Hsu Chen	Dr. Chen’s research group works on integrating biological and engineering principles into bioprocess procedures to improve the efficiency of the overall production system. The interdisciplinary team is interested in creating values for agricultural byproducts, optimizing the fermentation process, manufacturing bioactive carbohydrates, and elucidating substrate-specific microbial communities. Current research focuses include: 1. Sustainable food manufacturing and waste valorization 2. Functional carbohydrate development 3. Gut microbiome and microbial engineering Prospective student and researcher candidates are encouraged to contact Dr. Chen at minghsu.chen@ntu.edu.sg to inquire about open positions.
Asst Prof Monamie Bhadra Haines	My cross-disciplinary homes include: science and technology studies; postcolonial studies; political theory; energy policy The primary areas I am interested include: the relationship between science and democracy; liberal and illiberal democratization; social movements; the politics of risk and uncertainty; energy transitions; renewable energy; nuclear power; solar power; humanitarian crisis; refugees; migration. Secondary areas of interest include: disaster studies; science fiction; human-animal relationships. Prof Bhadra welcomes applications from undergraduate and PhD students interested in developing projects in STS.
Asst Prof Ng Bing Feng	This website is not updated. Please click on my name beside the photo to reach my updated personal webpage (https://blogs.ntu.edu.sg/ngbf/) Aero-servo-elasticity, Fluid mechanics, Aerosol and Emissions, Lightweight Structures, Radiative coolers, VTOL
Assoc Prof Ng Heong Wah	His early research interests have been in analysis and design of high temperature structures and pressure systems components including pressure vessels and piping design and analysis, fracture mechanics and defect assessment. Currently, his research focused on experimental, diagnostics, CFD modeling and simulation of plasma sprayed deposition of coatings for thermal barrier, SOFC fuel cells and other industrial applications.
Prof Ng Wun Jern	NG WUN JERN's research interests are largely in the area of water, wastewater, and sludge and agri-wastes management, with recovery of useful materials and energy. The focus of his efforts has been on investigations into water quality, treatment science, and development of treatment technologies and systems. These investigations span the water quality spectrum - ranging from ultra-pure water to high strength and inhibitory wastewaters, and organic sludges to agri-wastes management for recovery of soil fertility and crop yields. His research output may be found in some 400 publications. These include journal papers, conference presentations, book chapters and monographs, reports, and patents. His latest book publications are titled "Industrial Wastewater Treatment" (Imperial College Press) and "Wetlands for Tropical Applications" (Imperial College Press). Current R&D interests revolve around effluent treatment and include dehalogenation under bioreductive conditions. Of particular interest are the chloro-compounds and dehalogenation under acidic conditions with biomass sculptured into granules. The interest in bioreductive (instead of bio-oxidative) processes stems from concern over energy costs and carbon footprints of treatment processes. Anaerobic processes are therefore of interest when used to manage strong wastewaters and slurries from industrial and agro-industrial sources. R&D interest is on hydrolysis, staged and phased anaerobic processes, process stability and kinetics, gas productivities and quality, and recovery of resources. Conceptually there is a shift from viewing the anaerobic process as a wastewater pretreatment device to one which is intended to recover resources. Extending this interest is the work on biosorption where sorption is used to concentrate carbonaceous material from low strength wastewaters prior to anaerobic degradation of the sorbent with gas recovery. This approach deviates from the conventional approach of using anaerobic processes such as the UASB or anaerobic filter to address low strength wastewaters. Laboratory studies typically use the cyclic process configuration although larger scale studies can be with the cyclic or continuous flow configuration. In aerobic treatment, there is interest in the MBR applied with granulated biomass. The interest is on biofouling mitigation using this modified biomass morphology. There is also interest in using the MBR and the concept of "back seeding" to achieve better nutrients removal and degradation of resistant organics (eg textile dyes). Aerobic processes are also used to produce enzymes, phytohormones, and beneficial microbial consortia from horti-and agri-wastes. NG now leads his own research group, the Environmental Bio-innovations Group (EBiG), which as its name would suggest has focus on solutions which can be applied on the issues faced in the region. While not limited to bioprocesses, there are more numerous such solutions with intention to achieving more sustainable and circular approaches.
Assoc Prof Ng Yin Kwee	His main area of research is thermal imaging, biomedical engineering; computational turbomachinery aerodynamics; marine sustainable energy problems; computational fluid dynamics & computational heat transfer such as laser modelling, bioheat transfer analysis. He is the: Adjunct National University Hospital Scientist; Editor-in-Chief for the J. of Mechanics in Medicine and Biology; J. Med. Imaging and Health Informatics (Founding EiC); and strategy Assoc. Editor-in-Chief for World J. of Clinical Oncology; Assoc. Editor for Int. J. of Rotating Machinery; Computational Fluid Dynamics J. (CFDJ); Int. J. of Breast Cancer, Chinese J. of Medicine, Open Medical Informatics J., Open Numerical Methods J., J. of Healthcare Engg, J. of Scientific Conf. Proceedings, and J. of Bionano Science & many more; co-chairman for 15th Int. Conf. on Mechanics in Medicine and Biology (2006); co-chair of the working group on thermal imagers under Medical Technology Standards Committee by SPRING, Singapore (handling the international standardisation aspects for thermal imagers for ISO-IEC) etc.
Assoc Prof Oliver Martin Mueller-Cajar	Photosynthetic organisms provide us with food and other materials by using light energy from the sun to capture carbon dioxide from the atmosphere to make usable sugars. Almost all CO2 enters the biosphere via the enzyme ribulose-1,5-bisphosphate carboxylase oxygenase (Rubisco). In spite of the crucial importance of this process Rubisco is non-specific and slow, which has forced nature to hugely overexpress the protein, or to use tricks such as biochemical or biophysical carbon concentrating mechanisms to saturate the enzyme with substrate. The recent explosion of available sequence data has uncovered that Nature possesses a great diversity of Rubiscos and associated protein machinery to perform the task of CO2 capture, much of it poorly characterized. Research in my laboratory aims to mechanistically describe the biochemistry of CO2-fixation related machinery. By increasing our understanding of the sophisticated mechanisms that have evolved in remote branches of the tree of life, we hope to provide knowledge that can later be applied to improving the photosynthetic efficiency of crop species. The journey has led from experiments exploring the artificial or directed evolution of Rubisco in E. coli to detailed structural and mechanistic investigations into molecular chaperones, so called Rubisco activases, that repair inactivated Rubiscos. Recently we have entered the realm of soft matter physics (liquid liquid phase separation) by exploring the manner by which microalgae compartmentalize the enzyme in a small volume to enable an increase of local carbon dioxide concentrations to be achieved. Towards translating our interests we have also turned our attention towards the potential use of eukaryotic microalgae as a synthetic biology platform. This involves both the utilization and implementation of heterologous CO2 fixation machinery, as well as the potential to channel the photosynthate towards compounds of scientific and commercial interest. We are always interested in hosting promising young scientists that have a clear idea in how their future plans intersect with the group's interests. For more information please also check our laboratory homepage: https://blogs.ntu.edu.sg/omclab/
Prof Ooi Kim Tiow	Flow and heat transfer study of refrigeration system and cooling system, in particular the refrigeration compressor. Detail mathematical simualtion and measurement of compressor performance. Novel compressor designs and performance improvement. Microchannel flow and heat transfer. Optimisation design of refrigeration components and systems. Recently he also researches into enhanced microchannel heat transfer in macro geometry.
Dr Poernomo Gunawan	1) Nanomaterials fabrication and functionalization; 2) Heterogeneous catalysis and reaction engineering; 3) Renewable chemical feedstocks and energy; 4) Chemical engineering education.
Assoc Prof Ranjan Singh	Dr. Singh’s research interests lie at the intersection of electromagnetics, materials, photonics and micro-nanotechnology, with special focus on studying light-matter interaction at the micro-nanoscale. Broadly his research interests are in the areas of nanophotonics, semiconductors, metals, superconductors, plasmonics, metamaterials and nanofabrication. He has been working on design, simulations and fabrication of novel electromagnetic devices including metamaterials, plasmonic resonators and complex oxide transition materials, while simultaneously exploring their applications in information, sensing and energy. Dr. Singh’s research interests are focused on the development of terahertz, infrared, and optical metamaterial based active and passive plasmonic devices. Metamaterials have been found to possess exotic properties and effects that are beyond the realms of materials that exist in nature. His contributions in the field so far has been in the terahertz region where he demonstrated classical active and passive analogues of electromagnetically induced transparency through near field coupled metamaterial resonators, sensing with metamaterials, chiral metamaterials, ultra-high quality factor Fano resonances, and ultrafast superconductor metamaterials. Dr. Singh’s recent research focuses on addressing the issue of losses in subwavelength plasmonic metamaterials and investigates new dynamic materials that could be integrated with metamaterial resonators to achieve the active control of the photonic devices with exotic properties.
Prof Redfern Simon Anthony Turner	Professor Redfern's work explores how minerals control and reflect Earth processes and he has worked in collaboration with a wide variety of Earth and environmental scientists, from climate scientists to volcanologists to palaeontologist to seismologists and even exoplanetary “geo”scientists. In all cases he is interested in how insights into nanometre scale features provide understanding of global processes. His work has extended to using insights from nature to develop new materials in the context of materials design and engineering. His research interests focus on the physical and chemical properties of minerals and associated fluids in planetary interiors. He uses experimental and computational methods to understand the role of minerals in Earth and planetary processes at extreme pressures and temperatures. I has published more than 270 peer-reviewed papers in the scientific literature (H-index 46 [ISI], 54 [Google Scholar]), in internationally leading journals including Nature, Science, Physical Review Letters, Advanced Materials, Earth and Planetary Sciences Letters, JACS, Applied Physics Letters, and GRL. His research is highly inter-disciplinary and he has as many papers in the materials physics/chemistry literature as in geosciences. Professor Redfern pioneered the development of combined high-pressure high-temperature methods for the study of materials and minerals by neutron scattering and was at the vanguard of researchers using neutron methods in Earth and planetary sciences, and built new facilities at Rutherford Appleton Laboratory (UK) for the wider user community, including the first high-temperature high-pressure Paris-Edinburgh Cell for deployment at neutron sources, now used worldwide. From 2003 to 2006 I was Chair of the working group that designed and implemented the Extreme Conditions Beam Line (I15) of the Diamond Light Source synchrotron. He has edited several thematic sets of papers resulting from international scientific meetings that he convened, including a volume of Reviews in Mineralogy (Mineralogical Society of America) on "Transformation Processes in Minerals", his primary area of expertise. I have held several competitive UK research grants (total funding of more than £25m) and has led collaborations with a strong group of postdoctoral fellows and research students. He has supervised over 30 PhD students in Cambridge, and acted as postdoctoral mentor and advisor to more than 20 postdoctoral researchers, most of whom have gone on to permanent academic, business or governmental science positions.
Assoc Prof See Kye Yak	Electomagnetic Compatibility, Signal Integrity, Electromagnetic Shielding and Railway Condition Monitoring.
Prof Shen Zexiang	Raman spectroscopy and microscopy Graphene and graphene composite materials for electric energy storage - Li & Na ion batteries, supercapacitors flexible battery for bendable electronics Nano Science and Nano Technology Plasmonics Optical and electronic properties of 2D materials Optical study of perovskite materials Ultra low wavenember Raman spectroscopy High pressure study Theoretical simulation of graphene, 2D materials, and perovskites Industrial collaborators: Johnson Matthey, UK Elbit Systems, Israel Thales, France Akzo Nobel, Netherlands Globalfoundries Wintech Nano
Prof Shirley S. Ho	Media effects and public opinion in the context of science, health, and environmental issues Impacts of new media and social-psychological factors on attitudinal and behavioral outcomes Mass communication theory and quantitative research methods
Assoc Prof Siek Liter	Research interests are in the design of analog/mixed signal ICs especially in the areas of low-voltage low-power circuits, Power Management ICs, PLLs and Data Converters.
Prof Soh Yeng Chai	Robust system theory and applications; Estimation and filtering; Signal and information processing; Hybrid systems and applications; Optical signal processing.
Assoc Prof Soo Han Sen	The overarching theme of my research program is artificial photosynthesis. I developed a novel and unique form of artificial photosynthesis including original research in the critical functions of light absorption, charge separation, and multielectron reduction and oxidation catalysis. My current interests include the development of molecular photosensitizers and catalysts to harvest sunlight for proton reduction to produce solar fuels and chemicals.My team is also preparing photocatalysts and mesoporous materials derived from earth-abundant elements to valorize biomass lignin and degrade environmental pollutants by ambient condition C-C bond activation. I recently received the Asian and Oceanian Photochemistry Association Prize for Young Scientists 2016 in recognition of my team’s early contributions to artificial photosynthesis.
Assoc Prof Soong Boon Hee	Research interests in the area of Ad Hoc and Wireless Sensors Networks, Mobility Management, Network Planning and Capacity Optimisation, and Adaptive Video Rate Control.
Prof Srinivasan Madhavi	Asst.Prof. Madhavi Srinivasan areas of expertise are in Energy storage devices (lithium ion batteries,zinc-air batteries/fuel cells, supercapacitors), Ecomaterials (photocatalysts, ion-exchange ceramic membranes) and synthesis/characterization (XPS, XRD, SEM/TEM and spectroscopy) of nanostructured materials. Her current research works focus on employing functionalized carbon nanotubes SWNT/MWNT)and decorated CNTs as electrodes in batteries/supercapacitors. Her ongoing work involves fabrication of nanostructures of transtion metal oxide and metal nanoparticles and optimization of their adhesion on to carbon-based materials.She is also working on visible light photocatalysts such as perovskite and nitrogen doped titania along with activated carbon.
Assoc Prof Su Pei-Chen	Energy Thin Films Nano Ionics Low Temperature Solid Oxide Fuel Cells Silicon-based Micro-SOFCs Atomic Layer Deposition Multi-scale 3D Printing
Assoc Prof Su Rong	(1) Discrete event systems: Supervisory control, Model-based diagnosis, Cyber Security Analysis, Simulation (2) Multi-agent systems: Formation control, Output regulation, Sliding mode control (3) Planning and Scheduling with Applications in Smart Cities: Smart manufacturing, Intelligent transportation, Smart buildings
Prof Subodh Gautam Mhaisalkar	Prof Subodh’s main areas of research comprise semiconductor nanomaterials, photovoltaics, optoelectronics devices, and printed electronics. Common to these projects are methods of processing of semiconductors (perovskites, organic, nanocarbons, or oxide nanowires), fundamental device physics studies, and device integration.
Prof Sum Tze Chien	My research focuses on investigating light matter interactions; energy and charge transfer mechanisms; and probing carrier and quasi-particle dynamics in a broad range of emergent nanoscale light emitting and light harvesting systems using Femtosecond time-resolved spectroscopy. These can be categorized under two main research themes: (1) light emitters/lasing and (2) photovoltaics. I have also established a 3rd category: (3) Aspirational Areas to explore new ideas and concepts away from my two core research themes. Specifically, I seek to address the following three questions in these systems: (a) Where did the energy go? That is the interplay of carrier/quasi-particle dynamics between the host energy levels, defect energy levels and the dopant energy levels. (b) What are the underlying photo-physics and light-matter interactions that give this system its unique characteristics? That is the various processes such as carrier-carrier scattering, carrier-phonon scattering, radiative recombination and auger recombination etc. (c) How can these properties/technologies be improved for practical applications? That is how the knowledge gained be used for the development of novel optoelectronic devices; nanolasers; and photovoltaic devices. Today, my group tackles a broad spectrum of research problems in emergent materials (such as halide perovskites, 2D materials etc) ranging from novel photophysics, solar cells, LEDs, lasing, spin phenomena, hot-carrier phenomena and nonlinear properties. (1) Light Emitters/Lasing: We seek to understand the interplay of carrier/quasi-particle dynamics between the host energy levels, defect energy levels and the dopant energy levels and the factors affecting amplified spontaneous emission or lasing in these II-VI nanostructures such as ZnO nanowires, CdS nanowires and even the mixed dimension CdSe dot/ CdS nanorod heterostructures and organic-inorganic halide perovskites. (2) Photovoltaics: Ultrafast optical spectroscopy allows us to trace the fate of the carriers and quasi-particles in photovoltaic devices from genesis to the end with timescales spanning over ten orders of magnitude. Correlated with electrical characterization techniques, new insights into the mechanisms of charge generation, transfer, trapping, recombination and transport in novel PV materials can be gained through these studies. (3) Aspirational Areas: Presently, we live in a highly competitive era of rapid technological changes and shortened innovation cycles, where a keen sense and nimbleness to seek out opportunities is key to sustaining economic growth and our quality of life. These aspirational areas on 2-D Materials, novel nonlinear optical properties and spin phenomena allow us to explore new ideas and concepts apart from our core research.
Assoc Prof Sun Delai, Darren	- TiO2 nanofibe/tube membrane for water and energy (H2 and solar cell) production - Membrane fouling mechanism, control and prevention - Multifunctional membrane module design - Membrane bioreactor design - Composite membranes and membrane modules for environmental applications - Biofilms grown on liquid-permeable membranes - Reutilization of waste into value-added product.
Assoc Prof Sze Siu Kwan	Our research is devoted to develop and apply advanced proteomic technologies to decipher human diseases through a rational search for novel disease targets and medicines. As proteomics is still in the infancy stage, technology development is the key to advance the field to address more sophisticated biomedical questions. During the past few years, we have successfully developed a few novel proteomic techniques and applied to study proteins that are important to transcriptional and translational regulatory networks, DNA repair, and apoptotic pathway. More importantly, we have established a biological and biomarker discovery pipeline to study clinically important proteome systems relevant to host-pathogen response, cancer, and cardiovascular diseases
Asst Prof Tan Rui	I am interested in understanding how the physical ambients affect the cyber systems (e.g., sensor networks, wearables, data centers, etc) and exploiting certain properties of the physical ambients to improve the performance and resilience of the cyber systems. My ongoing research topics include: - Resilient CPS/IoT system functions (e.g., timing, synchronization, location, etc) - Low-power wide area networks - Thermal and energy control in data centers - Deep learning for sensing
Assoc Prof Tan Soon Keat	Dr Tan's research interests include application of geographical information system (GIS) in water resources, numerical simulation of flow for hydraulics and coastal engineering applications. His current research projects include hydrodynamic consideration of mega underwater structures and application of wetland technologies in the removal of pharmaceutical products from wastewater streams. Dr Tan specilaises in urban water management, rainfall-runoff modeling as well as water quality modeling, flooding, drainage, urban response, climate change and future scenarios analysis. Managing surface water in terms of quantitative distribution, storage and transport, removal of water-borne contaminant, particularly trace quantity of drugs and pharmaceutical products from waste-water streams are challenges in the management of water resources, and in particular, supply of raw water in the face of climate change and rapid urbanisation. A viable and feasible solution is to employ wetland technology as a means to remove contaminants and management of peak runoff. Under the supervision of Dr Tan, a research team is carrying out a series of constructed wetlands experiments with raw water spiked with selected contaminants. The research work has produced meaningful results and highly cited publications since its inception in 2009. Currently Dr Tan is leading research work on strategic development of coastal, urban scape and water resources, in response to climate change as well as developmental scenarios.
Assoc Prof Tiong Lee Kong, Robert	Areas of research interests: 1. catastrophe risk assessment and management 2. alternative risk transfer mechanisms and financing 3. catastrophe micro-insurance 4. sustainable development and systems, 5. impact of climate change, carbon finance and carbon emission reductions 6. integrated risk analysis
Assoc Prof Tran Anh Tuan	* Drop-surface interactions * Thermal management using surface modification * Boiling at microscales * Microfluidics
Dr Tuti Mariana Lim	Dr. Lim's areas of expertise include resources recovery particularly for rare earth elements separation by solvent extraction which was her PhD research topic. She was also involved in clean energy research during her undergraduate study and her final year project was on the development of Vanadium Battery technology. She was the recipient of Commonwealth Scientific and Industrial Research Organization (CSIRO) summer vacation scholarship in 1990-1991 to investigate the effect of pressure and temperature on the solubility of natural gas in LPG. Dr. Lim's current research interests include advanced oxidation technologies, hybrid membrane technologies and renewable energy technologies. She has done significant research work and published over 25 top quality international conferences and journal papers.
Assoc Prof Wan Man Pun	Prof Wan's areas of expertise are aerosol sciences, building environmental quality and catalytic combustion. His current research works focus on transport of expiratory aerosols in indoor environments and infectious disease transmission, ultrafine particle dynamics, mass transfer and chemical kinetics in catalytic oxidation systems.
Asst Prof Wang Mingfeng	Biological systems are featured by emergent properties in many processes such as energy and chemical transduction, communication, adaptation, self-repair and reproduction. They provide the proof-of-concept for what can physically be achieved with nanotechnology. For example, the ways in which biological systems transform and store energy, as well as their capabilities to perform self-repair and to adapt to external conditions inspire materials scientists and engineers how to manipulate energy, entropy and information in synthetic nano/micro systems. The mission of my research group is to develop novel polymeric and supramolecular materials with bioinspired hierarchical structures and advanced functions, broadly defined, for energy sustainability and human health. We enable this goal through a highly interdisciplinary research program across chemistry, materials science, biology and engineering. Our specific aims include: 1) To develop bioinspired light-harvesting complexes by design, synthesis and assembly of functional molecules, polymers and nanoparticles. 2) To understand interfacial transport of energy, charge and mass in hierarchically assembled structures with integrated functions. 3) To explore new materials and device structures for sustainable energy conversion and storage. 4) To develop multifunctional nanoscale vectors for smart biodiagnostics and nanomedicines. Students and postdocs in Dr. Wang's research group will be trained with knowledge and skills in polymers and materials chemistry, supramolecular science, nanomaterials, and colloids & interfaces. They will also gain opportunities of cross-boundary collaboration in ultrafast spectroscopy, optoelectronic devices and biomedical sciences. Please contact Dr. Wang if you would like to learn more information about our research, or if you are interested to join our group.
Prof Wang Peng	Power system planning and operation; Renewable energy planning; Solar/electricity convesion system; Power market; Power system reliability analysis.
Prof Wang Xin	Prof Wang Xin's areas of expertise are electrochemistry and electrocatalysis. His current research works focus on fuel cell, energy storage and electrochemical reactor with co-generation of electricity and valuable chemicals.
Prof Wang Youyi	Dr. Wang Youyi's main research interests are in the area of applications of nonlinear control, robust control to power and energy systems, electric drive systems, information storage systems, fuel cell systems, renewable energy systems and MEMS systems. Since he joined Nanyang Technological University in 1991, Dr. Wang keeps actively doing research in many areas and exploring some new research areas. Dr. Wang has made a good contribution and has a good international recognition and reputation in the established research areas of power and energy system control and analysis, hard disk drive systems, drive system control, and renewable energy system modeling and control.
Prof Wen Changyun	Prof Wen's areas of expertise are Adaptive Control,Switching and Impulsive Systems,Modeling and Design of Steam Ejector Based Air-Conditioning Systems,Modeling, Monitoring, Control and Optimization of Water Distribution Networks, Iterative Learning Control,Control of Nano-Systems, Control of Biomedical Systems,Optical signal Processing,Active Vision and Its Applications,Chaos-Based Secure Communication Systems,Robust Control,2-D Systems and Image Processing. Currently his current research works focus on Adaptive Control,Modeling and Design of Steam Ejector Based Air-Conditioning Systems,Modeling, Monitoring, Control and Optimization of Water Distribution Networks, Control of Nano-Systems, Control of Biomedical Systems,Chaos-Based Secure Communication Systems.
Assoc Prof Wong Kin Shun, Terence	Professor Wong's research focus is in: 1. Organic electronics: organic light emitting diodes; organic photovoltaic devices, printing processes for large area electronics. 2. Silicon nanoelectronics: mechanisms of local strained silicon devices; measurement of biaxial stressed silicon 3. Characterisation techniques: use of synchrotron x-ray scattering to characterize the structural properties of electronic materials 4. Interconnects: deposition of low-k dielectrics and material property characterization; sol-gel synthesis of dielectrics; high frequency measurement and modeling Cu/low-k interconnects. His current research focus is on organic electronics and silicon nanoelectronics.
Assoc Prof Wong Teck Neng	Assoc Prof Wong's main research focus on two-phase flow and heat transfer, multiphase flows in microchannels, multi-fluid electroosmotic flow in microfluidic devices, liquid slug thermocapillary flows in microchannels, two-phase flow in evaporator, condenser and capillary tube expansion devices, heat driven pump and pulsating heat pipe for electronic cooling.
Assoc Prof Wong Yiik Diew	[July 2020] Wong's R&D interests are in sustainable urban mobility; road safety engineering & practices; driver & traveller behaviours; pedestrian safety & accessibility; bicycle transport & infrastructure; innovative construction materials in pavement. He has also undertaken research in freight transport; maritime safety & security; maritime manpower developments, urban studies.
Prof Xie Lihua	Prof Xie's expertise areas include robust control and estimation theory. His current research works focus on networked control, cooperative control, sensor networks, energy efficient buildings, and unmanned systems.
Prof Xu Rong	- Photocatalysis for reduction of carbon dioxide and hydrogen production by splitting water using visible light. - Heterogeneous catalysis for environmental applications. - Organic-inorganic layered materials (LDHs) for pharmaceutical applications. - Development of artificial cornea (nanoparticle/polymer composite). - Antimicrobial membrane for water treatment (Silver in microfiltration membrane). - Immobilization of enzymes on inorganic solid support as scalable and reusable biocatalysts.
Assoc Prof Xue Can	1)Development of novel plasmonic nanomaterials for solar energy applications (photovoltaics and photocatalysis) using anisotropic metallic nanostructures that exhibit unique surface plasmon resonance properties in the visible and near-IR region. 2) Fabrication of novel metal-semiconductor conjugated nanocomposites for plasmon-driven photocatalysis. 3) Development of hybrid semiconductor nanomaterials for solar-driven water splitting
Prof Yang Chun, Charles	His current research interests include Development and characterization of Lab-on-Chip devices, electrokinetic transport phenomena, microfluidics, microscale flow, heat and mass transfer, colloidal science, surface and interfacial phenomena etc.
Prof Yang Yaowen	(a) Application of smart sensor technology for structural health monitoring; (b) Energy harvesting using smart materials; (c) Uncertainty analysis and modeling for structural systems; and (d) Evolutionary computation for optimization and inverse problem solving;
Prof Yu Ting	My research focuses on synthesis of nanostructures, assembly and manipulation of 1D nanostructure, and development of nanodevices: 1. Graphene: preparation, optical characterization, chemical/biological sensor, electrical devices 2. Substrate-friendly synthesizes of metal oxide nanostructures with controlled morphologies and patterns. 3. Wet-chemical method for fabrication of metal hydroxides and metal oxides nanostructures. 4. Field induced electron emission of individual nanowires or nanowire arrays 5. Electronic transport and mechanical properties of individual nanostructures 6. Nanowire FETs for nanoelectronics, nano-chemical sensors and nano-biological sensors
Prof Zhang Dao Hua	Semiconductor materials, devices and physics Quantum well, wire and dot structures and devices New nano-scaled materials and devices for low and high temperature infrared photodetection Metamaterials and Naophotonics
Asst Prof Zhao Jun	• AI and Data Science: federated learning, deep learning, adversarial machine learning, computer vision (CV), natural language processing (NLP), reinforcement learning, optimization, etc. • City Brain and Smart Nation: federated learning, Internet of Things IoT, cloud/edge/fog computing, 6G wireless communications, signal processing, smart grid, cyber-physical systems CPS • Security and Privacy: federated learning, blockchains, adversarial machine learning, differential privacy, applied cryptography, secure multi-party computation
Assoc Prof Zhao Yang	Miniaturization of electronic and mechanical devices over the past century has brought immeasurable impact onto human lives. Commercial microelectromechanical systems have reached micron scales, and bona fide molecular apparatuses began to emerge setting the stage for upcoming integrated nanoelectromechanics. Dr. Zhao and coworkers systematically investigate carbon-nanotube-based oscillators, bearings and rotators via molecular dynamics simulation in order to establish their optimal operating conditions and to facilitate function-oriented designs. In addition, particular attention is paid to utilization of nanomachinery devices as nanolabs to study energy exchanges among various degrees of freedom, ergodicity on energy surfaces, and equipartition as systems relax, and to test fundamental hypotheses of thermodynamics and statistical mechanics. The advent of ultrafast femtosecond laser spectroscopy brings about intense research interest in relaxation dynamics of photo-excited states in liquids and solids. Newly-arrived technological capabilities to control femtosecond pulse durations and down-to-one-hertz bandwidth resolutions provide novel probes on vibrational dynamics and excitation relaxation. Dr. Zhao and coworkers formulate time-dependent polaronic wave functions that facilitate microscopic modelling of photo-generated excitation relaxation and realistic computation of various third-order optical response functions, and help to achieve a satisfactory comparison between theory and experiment. Carbon nanotubes are attractive candidates for a variety of applications thanks to their remarkable physical, chemical, and mechanical properties. Optical absorption and fluorescence spectroscopy measurements have become an important tool for structure-based characterization and DNA-assisted manipulation of carbon nanotubes. Dr. Zhao and coworkers establish visual, intuitive connections between optical absorption line shapes and their underlying nanotube structures, which are scrutinized by more sophisticated semi-empirical and DFT calculations.

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