Research Categories

Faculty This site

Microelectronics & Applications

This category covers:

Electronic Displays
Integrated Circuits
MEMS
Optoelectronics
Photonic
Semiconductor
Solar Cells
VLSI

Name	Research Interests
Asst Prof Abhisek Ukil	Dr. Ukil's research interest is in the field of - Power Systems: Protection, Bulk Power Transmission (HVAC, HVDC, overhead/underground), Distribution Automation (MV & LV), DC Grid, Renewable Energy & Integration, Microgrid, Energy Efficiency, Control, Hardware-in-loop testing, - Condition Monitoring & Diagnostics: Rotating Machine, Transformer, Cables, Circuit-Breaker, Relay/DFR, Surge Arrester, - Signal Processing, Machine Learning, Sensor-based Embedded Systems and applications.
Assoc Prof (Adj) Akkipeddi Ramam	Prof Ramam's areas of expertise are, Growth of arsenide/phosphide based materials by MBE/MOCVD,InP based optical MEMS, GaN based optoelectronic devices, His current research works focus on Nanopatterning by e-beam lithography and Printing of functional materials for Electronic applications.
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.)
Asst Prof Boon Chirn Chye	Please See link below for more publications and awards. http://www.ntu.edu.sg/home/Eccboon/ (1) Awards: PI: Ultra-low Power Fully Integrated CMOS 24GHz Receiver, $0.323mil, March 2008 to February 2011, AcRF Tier 1 MOE. PI: Batteryless Flexible Transceiver for Biomedical Applications, $1,186,270 including scholarships), May 2009 to April 2012, AcRF Tier 2 MOE. Co-PI: An Ultra Low-Power RFIC Chip For Wireless and Communication Applications S$1.2 mil, March 2006 to February 2009, funded by Agency for Science, Technology and Research (A*STAR). Co-PI: System-on-chip: Realization of Software Radio, S$0.3 mil, 3 December 2008 to 2 December 2009, University of Electronic Science and Technology (UEST) of China-NTU Joint R&D, jointly funded by UEST and NTU. Co-PI: An Ultra Low-Power RF Transceiver Chip towards a New Paradigm of Life Quality, S$0.25 mil, 3 December 2008 to 2 December 2009, NRF. PI: High Thermal Resolution Ultra-Low Power Integrated Imager: Fund. Issues in CMOS, $840,000, July 2013 to June 2016, AcRF Tier 2 MOE. Various JIP programs.
Assoc Prof Chan Pak Kwong	Dr Chan’s research interests are in areas of mixed-mode circuits and systems, precision analog circuit design, integrated circuit analysis and circuit theory & applications. He initiated SENSOR CIRCUITS & SYSTEMS research, focusing on • Sensor interface ICs for biomedical, chemical, environmental and nanotechnology based sensors; • ADC/DAC ICs for biomedical and environmental sensor signal-processing applications; • Accelerometer ICs for biomedical and consumer electronics applications; • Sensor systems based on highly-accurate instrumentation circuits or intelligent design techniques; • Ultra low-voltage low-power low-noise circuit design techniques; • Power management ICs for integrated sensors and system-on-chip.
Assoc Prof Chang, Joseph Sylvester	Joseph Chang is multi-disciplinary engineer with research encompassing core CAS-related fields including analog, digital and aerospace circuits/systems; biomedical/life-sciences related-fields; and the emerging printed-electronics. He received the B.Eng (ECE) from Monash University, and Ph.D. from the Department of Otolaryngology, Faculty of Medicine, University of Melbourne, and has two-years IC-related industrial-experience. He is currently with the Nanyang Technological University, Singapore (and Adjunct at Texas A&M). He has contributed to senior university administration and to ECE undergraduate/graduate education. He was the inaugural Associate-Dean of Research-and-Graduate-Studies at the 660 faculty-strong College-of-Engineering. For undergraduate education, he emphasized on promoting and instilling undergraduates’ interest in ECE, including being the chair of the Undergraduate-Research-Experience-on-Campus and Undergraduate-Research-Opportunities-Program programs, chaired Orientation-Programs and national-level undergraduate-conferences, and has given several talks in high-schools. In the IEEE, he contributed to both core and multi-disciplinary fields, including as Guest-Editor of the Proceedings-of-the-IEEE on ‘Computational System-Biology’, Guest-Editor of the CAS-Magazine on ‘Special-Issue on Life-Sciences’, Editor of the CAS-Magazine’s Open-Column, Chairperson of the IEEE-NIH Life-Sciences-Systems-and-Applications (LiSSA) Workshop, Chairperson of two IEEE-NIH CAS-Medical-and-Environmental (CASME) Workshops, Chairperson of the LiSSA Technical-Committee, Associate-Editor of IEEE TCAS-I (3-terms) and -II, Associate-Editor of the IEEE CAS-Magazine, Distinguished-Lecturer, etc. Of specific interest, he organized the successful merging of the BioCAS and LiSSA technical-committees, largely for CAS’s concerted/united life-sciences efforts. He was instrumental in several non-IEEE establishments’ engagement in CAS’s activities, including other IEEE societies, National-Institutes-of-Health, Telemedicine-and-Advanced-Technology-Research-Center, American-Institute-of-Medical-and-Bioengineering, etc. Impact thereto includes NIH’s request for each of their 27 institutes a copy of the aforesaid CAS-magazine’s special-issue, representation by different IEEE societies at the IEEE-NIH workshops and NIH financial support for CASME. He has published over 200 referee-reviewed publications (primarily in IEEE) and has over 20 patents (awarded/pending). In the field of ‘Class-D amplifier’, he has the most number of publications in the IEEE; and the top-ranked paper (excluding patents) and four of the top six papers in ‘Digital Class-D Amplifier’ in Google Scholar. He has received numerous grants from local and international funding-agencies (including DARPA and the EU) and from industry, amounting to >US$10M. He has founded two startups, and has designed numerous ECE-related products for industry. His research interests are largely emerging technologies, including bioengineering, microfluidics, audiology, psychoacoustics, and analog and digital circuit designs. He leads a group of 25 researchers - externally funded - including from DARPA (USA) and from the European Union. Some description of his work may be found in the following editorials of the Proceedings of the IEEE and the IEEE Circuits and Systems Magazine (where he served as a Guest Editor): J. Chang, S. Wong, R. Newcomb and P. Häfliger, ‘Third Revolution in Medicine – the Convergence of Life Sciences with Physical Sciences, Mathematics and Engineering’, IEEE Circuits and Systems Magazine, Special Issue on Life Sciences, Aug 2012 S. Wong, M. Ogorzalek and J. Chang, ‘Editorial on the Special Issue on Computational Systems Biology’, The Proceedings of the IEEE, Aug 2008
Assoc Prof Chen Tupei	Current research interests include nanoscale CMOS devices and reliability physics; semiconductor and metal nanocrystals/nanoparticles and their applications in nanoelectronic and photonic devices; novel memory devices (nanocrystal Flash memory, RRAMs, WORM, 1T-DRAM, etc.); memristors and applications in Si neural devices and networks (electronic neurons, synapses, self-learning devices, etc.); Si photonic devices (Si-based light emitters, plasmonic waveguides, optical interconnects); and flexible/transparent electronic devices (transparent high mobility thin-film transistors, thin film memories, etc.).
Assoc Prof Chen Xiaodong	Currently, Prof. Chen's research focuses on three directions: (1) Nanobioelectronics: to develop integrated nanostructure-biomaterial hybrid systems for bioelectronics and probe biological processes at the nanoscale; (2) Bioinspired assembly: to mimic methods used by nature for interfacing organic and non-organic material and building hierarchical structures with advanced functions, and (3) Nanomaterials for energy conversion and storage: to explore nanoscale modules for light harvesting, charge separation, solar energy conversion, and storage.
Assoc Prof Chen Zhong	Thin Films & Low-dimensional Materials: Thin films & nano-materials for clean energy and environmental applications; Microelectronic thin films; Protective and functional surface coatings. Mechanical Behavior of Materials: Fracture, fatigue, and creep of bulk monolithic & composite materials, thin films and multi-layers; Experimental and computational mechanics.
Asst Prof (Adj) Chew Kok Wai Johnny	Dr. Chew Kok Wai, Johnny?s research interests include (i) RFCMOS actives and passives test structure designs and layout optimization, (ii) characterization and modeling of RFCMOS actives and passives, (iii) flicker and high-frequency noise characterization and modeling of MOS transistors and (iv) process optimization to enable high performance RFCMOS actives and passives.
Asst Prof (Adj) Christophe Couteau	Quantum optics, quantum information, photonics, nanoscience, material and semiconductor physics.
Assoc Prof Christopher Shearwood	Assoc Prof Christopher Shearwood main research focus are in the area of MEMS, BIOMEMS, sensors and actuators although he has also accumulated experience in transdermal drug delivery, spintronics, thin film magnetism, x-ray topography, electron and ion beam lithography, shape memory alloys, and nano-metals. He has published over 40 top quality international journal papers, as well as numerous conference papers, book chapters, and patents.
Prof Denis Fichou	The main objective of our research is to design nanostructured organic materials for device applications such as photovoltaic solar cells, field-effect transistors and magnetic heterojunctions. Therefore we have developed a bottom-up strategy going “from molecules to devices” via organic synthesis, supramolecular self-assembly and device fabrication. - Supramolecular self-assemblies @ surfaces The templated self-assembly of individual nano-objects on surfaces provides a versatile route towards the development of functional 2D arrays for energy, catalytic and magnetic applications. Supramolecular nanoporous networks are unique architectures able to trap atoms, molecules or nanocrystals of pre-determined size, shape and properties. The properties of these highly-organized sophisticated materials are explored at the atomic/molecular scale and finally integrated as active materials into various applications. - Organic solar cells The combination of p-type and n-type organic semiconductors allows to design photovoltaic organic solar cells. In order to enhance the photon-to-electron conversion efficiency of these all-organic devices (today > 10%) it is mandatory to introduce interlayers in the sandwich structures. We investigate novel interlayer materials which could facilitate hole collection at the anodic interface and one day substitute the ubiquitous PEDOT:PSS. - Hybrid organic-inorganic magnetic heterojunctions We investigate the possibility to use organic ultra-thin film semiconductors as tunnel barriers in magnetic heterojunctions such as {Fe3O4/Organic/Co}. Controlling the nanoscale morphology of these organic thin films is essential (AFM, CS-AFM). Magnetic measurements are performed to investigate the decoupling between the two ferromagnetic electrodes via the organic layer.
Assoc Prof (Adj) Desmond Rodney Lim Chin Siong	Current research interests are in components, subsystems and system applicatons for microwave photonics, photonic sensors and power generation.
Assoc Prof Gan Chee Lip	A/Prof Gan's research area is on microelectronics interconnect systems, spanning from reliability of conventional Cu/low-k interconnects, to three-dimensional (3D) interconnects and nanowires interconnects. Dr Gan's current research interests include the reliability study of advanced interconnect systems, such as copper electromigration, time-dependent-dielectric-breakdown of low-k dielectrics and new assessment methodology for circuit level reliability projection. Another area of research is on the process integration and reliability of 3D interconnects through copper-copper wafer bonding. Fabrication of metallic nanowires by a template method as interconnects is also being investigated. Work is carried out to characterize the morphology and electrical properties of the nanowires to assess its suitability for actual applications.
Assoc Prof Goh Wang Ling	Digital/mixed-signal IC designs:- 1) Wireless implantable neural recording IC for motor prosthesis, 2) 3D IC design for 100 GHz Application, 3) Class D amplifier, 4) Field-Programmable Gate-Array-Based Investigation of Coding and Detection for Ultra-High Density Magnetic Recording. As well as Silicon-On-Insulator (SOI) process technology, SOI devices and Nanowire transistors.
Asst Prof Hayden Kingsley Taylor	Hayden’s research interests include the invention, modelling and simulation of micro- and nano-manufacturing processes, materials-testing techniques operating down to the nanoscale, and applications of polymeric materials in micro- and nano-fabrication, including for tissue scaffold engineering.
Asst Prof Hirotaka Sato	MICRO SYSTEM micro air vehicle, MAV insect flight control insect physiology biofuel cell NANO FABRICATION electrochemical etching, deposition electroless deposition
Prof Huan Cheng Hon, Alfred	Alfred Huan's research interests lie primarily in surface science and spectroscopy. He has published over 180 papers in international refereed journals and 1 book chapter, with a current H-index of 19 and citation rate of 7.92. He has been the PI of several research grants awarded by Ministry of Education and A*STAR, with total exceeding S$4 million. He serves on the editorial board of a new journal (Research Letters in Physics), and is a member of the Programme Committees for the ICMAT and VASSCAA conference series
Asst Prof Jaspreet Singh Dhupia	1. Nonlinear Dynamics, Systems and Controls 2. Substructure Analysis 3. Parametric Excitation and Non-Autonomous Systems 4. Machine Chatter, Regenerative Self Excited Vibrations 5. Reconfigurable Machine Tools, Machine Tool Design
Assoc Prof John Ngo Quoc Nam	His current research interest is mainly on optical signal processing (e.g., passive and active fiber-based and waveguide-based devices) and its applications in, for example, optical communications systems, optical sensors and microwave photonics.
Assoc Prof K Radhakrishnan	Epitaxial growth and characterization of compound semiconductor materials including III-Nitrides. Development of advanced nanostructures and metamorphic growths. Surface and interface analysis. Device fabrication and characterization for low-noise, power and MMIC applications.
Prof Kam Chan Hin	His current research interests are mainly in the area of sol-gel photonics, non-linear optics, quantum transport and spectroscopy of rare-earth doped glasses. He has contributed more than 200 international journal and conference publications in the area of Photonics and High Energy Physics. He holds 6 international patents in surface acoustic wave devices and sol-gel photonics.
Assoc Prof Kantisara Pita	Prof K. Pita's areas of expertise are synthesis and fabrication of novel oxide based films and nanoparticles for photonics applications such as light emitting based devices, waveguide based devices and solar cells. His current research works focus on novel oxide based films/nanoparticles materials system for light emitting based devices, solar cells and waveguide based devices.
Assoc Prof Lau Kim Teen	Ultra Low Power IC Design Adiabatic CMOS Circuit Design Self-Timed CMOS Circuit Design Subthreshold CMOS Circuit Design CMOS Digital Circuits and Applications
Assoc Prof Law Choi Look	Dr. Choi Look LAW's areas of expertise are microwave circuits and wireless systems. His research interests are digital beam forming array antenna, ultra-wideband microwave circuits, wideband channel characterization and modeling, radio frequency identification, wireless networking and positioning systems.His current research work focus on high linearity high efficiency microwave power amplifiers for OFDM sytems and scalable precision positioning systems using ultra-wideband impulse radio.
Assoc Prof Lee Pooi See	Nanoelectronic materials, Organic electronics and memory, Ferroelectric polymers, Capacitor materials, Energy Storage
Asst Prof Lew Wen Siang	Dr Lew's areas of expertise are spintronic devices, nanoscale magnetism, and bio magnetic sensors.
Asst Prof (Adj) Lim Peng Huei	(i) Silicon Photonics (ii) Microwave Photonics (iii) Integrated Optics (iv) Lithium Niobate Devices
Asst 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.
Asst 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.
Assoc Prof Miao Jianmin	MEMS, biochip and nanofabrication technologies, inertial sensors, acoustical and ultrasonic transducers, RF MEMS, biosensors, MEMS for environmental monitoring, carbon nanotubes based NEMS, through-silicon via interconnects, MEMS packaging.
Asst Prof Nachiket Kapre	I am broadly interested in understanding the potential of reconfigurable VLSI technologies for improving performance, energy efficiency and manufacturing reliability of next-generation computing systems. While Moore's Law (technology scaling) continues to deliver increasing VLSI capacity, we may be unable to fully utilize these resources and fail to satisfy the computational demands of future computing problems. To address these challenges, I foresee breakthroughs required in four key areas: 1. Power and Energy-Efficiency It is expected that as much as 50% of our chips will have to remain off at 8nm technology node due to excessive power consumption. This effectively nullifies the benefits of technology scaling. Spatial, heterogeneous computer architectures that use specialisation and emphasise communication requirements during design will deliver the required energy benefits to keep the benefits of VLSI scaling impact. 2. Reliability and Robustness As we begin to manufacture increasingly smaller transistors (feature size is merely 10s-100s of atoms wide), it gets increasingly harder to ensure that all devices are perfect and have identical circuit behavior. Reconfigurability at some granularity (e.g. few gates, or function units like adders or multipliers, or complete CPU cores) is essential to design reliable systems out of unreliable components. 3. Programmability and Scalability Programmers have been traditionally trained to describe computation sequentially are not prepared to reason about computation spread across tens of billions of transistors. We can simplify the task of programming heterogeneous, reconfigurable architectures through high-level, domain-specific system architectures. 4. Compute Demands of the Future Human imagination continues to push the boundaries of what can be processed with digital computation. There will always be problems in different domains such as scientific computing, IT, operations research, healthcare, desktop and embedded computing, that will remain infeasible on modern computing resources. We must pick a representative challenging set of compute kernels that are know to scale poorly on modern machines e.g. kernels from sparse graph processing, VLSI CAD problems, and biological sequencing and matching. Such applications will often decompose into a variety of custom abstractions such as streaming, data-centric, data-parallel or control-intensive systems that can help us design custom accelerators that offer the desired level of performance to implement the computation.
Assoc Prof Ng Beng Koon	My research expertises include the physics of impact ionization process in semiconductors, the design and characterization of advanced photodetectors, and the use of Biophotonics imaging techniques for medical diagnosis.
Assoc Prof Ng Geok Ing	Current research interests include device physics, fabrication and characterisation of microwave devices with different III-V material systems for low-noise, power and MMIC applications and MEMS.
Assoc Prof Oh Joo Tien	Prof Oh'ss areas of expertise are Magnetic Materials, Ceramic Substrate Materials for Microelectronic Packaging, Electrolytic Capacitors and Electron Microscopy. His current research works focus on Nanostructured Magnetic Materials
Dr Ong Keng Sian, Vincent	Prof Vincent K.S. Ong's areas of expertise are in the Characterization of Semiconductor Materials and Devices, and in the areas of Semiconductor Physics, and Computer Simulation of Semiconductor Devices and Materials. His current research works focus on the area of Electron Beam Induced Current Metrology and the Single Contact Electron Beam Induced Current Techniques.
Assoc Prof Pang Hock Lye, John	His current research work includes Design-For-Reliability (DFR) assessments for laser additive remanufacturing technology, Materials-Process-Performance (MPP) characterizations, Elastic-Plastic-Creep (EPC) mechanics of lead-free (Sn-Ag-Cu) solders, Fitness-For-Service (FFS) assessments of welded joint and offshore structures. His research contributions to design-for-reliability (DFR) methodologies for lead-free solder has been documented in his book on Lead Free Solder : Mechanics and Reliability, Springer, 2012. (ISBN 978-4614-0462-0, e-ISBN 978-4614-0463-7). It covers lead-free solder mechanics, finite element modeling, simulations of failure for thermal cycling, cyclic bending, vibration fatigue and impact drop tests. He has research interest in Digital Image Correlation (AFM/DIC) analysis, Strain rate effects in Nano-indentation, CNT characterization and application.
Assoc Prof Phee Soo Jay, Louis	His current research works focus on Medical Robotics and Mechatronics in Medicine.
Assoc Prof Poenar Daniel Puiu	Sensors & actuators; MEMS; Si processing; (Bio)chemical sensors; bio-photonics; colour discriminators (e.g. using triple junction structures); miniaturization of bio-analitical methods (e.g. spectrometry, electrophoresis, chromatography) for (Bio)chemical applications, as well as optical detection for these separation methods; bio-photonics & opto-fluidics
Assoc Prof Raju Vijayaraghavan Ramanujan	Nanomaterials are the focus of research work in Ramanujan?s group, especially magnetic and thermoelectric nanomaterials for energy, bioengineering, information storage and defense applications. Processing, characterization and property measurements are carried out in his group (presently 8 graduate students and 3 Research Fellows). Recent PhD theses include: Characterization and processing of cobalt based magnetic nanomaterials (Li Huafang),Microstructural evolution and processing of melt spun and mechanically alloyed Fe-Ni-B-Mo nanomagnetic materials (Du Siwei), Alloying effects on nanostructure formation in iron based soft magnetic materials (Yanrong Zhang) and Directed self assembly of patterned magnetic nanostructures (A. Srivastava). A strong emphasis is placed on electron microscopy and phase transformations are used as an important tool to tailor the microstructure. A bioengineering project, in collaboration with SingHealth, aims to develop magnetic nanoparticles for human liver cancer treatment. Synthesis of magnetic nanoparticles, coating these particles with a suitable polymer and cancer drug, followed by in-vitro and in-vivo testing of the coated particles is being carried out. MRI imaging is being used as an investigative tool in this work. Microelectronic reliability issues, e.g., stress-induced diffusive voiding in microelectronic materials are being studied. Magnetocaloric materials for energy applications, patterned nanostructures for ultra high density data storage media, giant energy product exchange coupled magnetic nanomaterials and nanomaterials for artificial muscles, targeted drug delivery and gene delivery are topics of ongoing research.
Asst 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.
Assoc Prof Rusli	A/Prof Rusli's areas of expertise are on the growth, characterization and application of amorphous thin films which include a-C:H, a-Si:H, a-SiC:H, a-SiN:H etc. He has also worked extensively on the design, fabrication and characterization of high frequency, high power and high temperature SiC power devices. His current research works focus on silicon nanowires and their applications.
Assoc Prof Siek Liter	Research interests are in the design of bipolar, CMOS and BiCMOS analog/mixed signal ICs especially in the areas of low-voltage low-power circuits, Power Management ICs, PLLs and Data Converters.
Prof Simon S. Ang	High-density power electronic system design and integration; high-temperature wide-bandgap power electronic system design and integration; nano-technology material applications in power electronic systems; alternative energy sources.
Prof Subodh Gautam Mhaisalkar	Current research interests for Prof Subodh include Printed Electronics, Biosensors based on carbon naotubes and nanowires, printed power, and Photovoltaics. Common to all these projects are methods of solution depositing semiconductors (organic, carbon nanotubes, or inorganic nanowires), device fabrication, fundamental device physics studies, and device integration.
Asst Prof Suhaib A Fahmy	• Reconfigurable computing • Adaptive Hardware systems • Automotive systems • Cognitive radio and dynamic spectrum • Field programmable gate arrays (FPGAs)
Asst Prof Tan Chuan Seng	On wafer 3-D/Vertical Integration of ICs, Group-IV Hetero-epitaxy and Devices
Prof Tan Ooi Kiang	Sensors, Actuators, and Smart Materials; Nanoelectronics and functional materials and devices; design for electronics, bio-medical, functional sensor and actuator applications.
Assoc Prof Tang Xiaohong	. Compound semiconductors and photonic devices. . Metal organic vapor phase epitaxy. . Nanophotonics and nanoelectronics: materials, physics and devices. . Heterogeneous epitaxy growth of compound semiconductors on silicon substrate. . Semiconductor quantum dot, nanowire photonics and electronics.
Prof Tay Beng Kang	B K Tay's research in the plasma processing of materials spans over 12 years and has resulted in over 280 publications. Prof Tay's computed h-index is 27 with SCI citations of 1900 (excluding self). He performed the most comprehensive investigation of the effect of ion energy on the properties of tetrahedral amorphous carbon, of which one paper has been cited 100 times since 1996. Prof Tay and co-workers successfully completed detailed studies into the science and engineering of plasma processes in filtered cathodic vacuum arc technology which overcame serious shortcomings in this technique including problems in controlling the film deposition rate and film uniformity. This resulted in 9 patents based on filtered cathodic vacuum arc technology. He jointly-invented an industrial viable film deposition system where it is currently being used by storage media industries to deposit hard coatings for the production of hard disk drives. This work led him and his co-workers to win the coveted ASEAN Outstanding Engineering Award and the highly prestigious National Technology Award (Singapore) in 1997 and 2000 respectively for outstanding and pioneering R&D contributions on a new filtered cathodic vacuum arc technology. Prof Tay has performed pioneering research in plasma ion immersion implantation and deposition which resulted in the development of novel nanostructured materials, metal nanocomposites and nanoclusters. Recently his team won the 2007 IES Prestigious Engineering Achievement Awards for their work in Nano-engineered Carbon Hybrid Systems. His research work is now focused on the applications of the FCVA technology, which includes diamond-like carbon, metal oxides and embedded nanocluster films and extending into various technological areas such as thin film coatings, field-emission displays to MEMS, nanoelectronics and biotechnology. Currently he is supervising 6 PhD students. Selected Papers 1. D.W. M. Lau, D. G. McCulloch, M. B. Taylor, J. G. Partridge, D. R. McKenzie and N. A. Marks, E.H. T. Teo and B. K. Tay, Abrupt Stress Induced Transformation in Amorphous Carbon Films with a Highly Conductive Transition Phase, Phys Rev Lett, 100, 176101 (2008). 2. Edwin. H. T. Teo, Wendy. K. P. Yung, D. H. Chua & B. K. Tay, A Carbon Nanomattress: A New Nanosystem with Intrinsic, Tunable, Damping Properties, Adv. Mater, Vol. 19, No. 19, pp. 2941-2945 (2007). 3. Yang Y, Sun XW, Tay BK, et al. Twinned Zn2TiO4 spinel nanowires using ZnO nanowires as a template, Adv. Vol. 19 (14): 1839 (2007) 4. Tay BK, Zhao ZW, Chua DHC, Review of metal oxide films deposited by filtered cathodic vacuum arc techniques, Materials Science & Engineering R-Reports, 52 (1-3): 1-48 (2006) 5. J. Y. Sze, B. K. Tay, C. I. Pakes, , D. I. Jamieson and S. Prawer, Formation of Ni nanoparticles in an ion-modified polymer, J. Appl. Phys., 98, 066101 (2005) 6. D. G. McCulloch, J. L. Peng, D. R. McKenzie, S. P. Lau, B. K. Tay and D. Sheeja,Mechanisms for the behaviour of carbon films during annealing, Physical Review B, 70, 8 (2004) 7. T. L. Schiller, D. Sheeja, D. R. McKenzie, D. G. McCulloch, S. Burn, D. S. P. Lau and B. K. Tay, Plasma immersion ion implantation of poly(tetrafluoroethylene), Surface and Coatings Technology 177 -178, 483-488 (2004) 8. Shi X, Tay BK, Tan HS, et al. Transport of vacuum arc plasma through an off-plane double bend filtering duct, Thin Solid Films, 345 (1): 1-6 (1999) 9. Tay BK, Shi X, Tan HS, et al. Raman studies of tetrahedral amorphous carbon films deposited by filtered cathodic vacuum arc, SCT 105 (1-2): 155-158 (1998) 10. Xu S, Tay BK, Tan HS, et al. Properties of carbon ion deposited tetrahedral amorphous carbon films as a function of ion energy, Journal of Applied Physics, 79 (9): 7234-7240, (1996)
Asst Prof Teo Hang Tong Edwin	1.Nano-composites and hybrid materials 2.Carbon-on-carbon anisotropic hybrids 3.Re-ordering of chaotic materials 4.Stacked 2D materials 5.Thermal Interface Materials 6.Thermal management through both top-down and bottom-out approach
Assoc Prof Thirumany Sritharan	Prof Sritharan's research expertise are in the areas of experimental processing and characterization of ceramics and metallics with focus on (a) multiferroic ceramic thin films, (b) barrier layers and inerface phenomena, and (c) nanostructured magnetic materials. His current projects are in the development of mutliferroic materials with magnetoelectric coupling for applications in spintronics, Ru-based diffusion barrier layers for Cu metallization, interface interactions in electronic packages, and the effects of nanostructure on the magnetic properties.
Prof Tjin Swee Chuan	Swee Chuan Tjin's research interests are in fibre optic sensors, biomedical engineering and biophotonics.
Assoc Prof Tseng King Jet	Dr Tseng's research areas are Power Semiconductor Devices; Electron Device Modelling and Simulation; Electrical Energy Conversion; Electrical Energy Generation, Distribution, Storage and Utilization; Energy Efficiency; Power Systems and Power Electronics. His current research projects are Marine Tidal Stream Energy Systems, Energy Storage for Renewables, and Wide Band-Gap Power Semiconductors.
Assoc Prof Wang Hong	Prof. Wang's areas of expertise are semiconductor devices and IC technologies. His current research works focus on compound semiconductor and Si-based device physics, fabrication technology, and characterization.
Asst Prof Wang Qijie	My current research interests are to explore theoretically and experimentally nano-structured semiconductor and fiber-based materials, and nanophotonic devices (nanoplasmonics, photonic crystals and metamaterials) with an emphasis on all aspects of the problem: from design, fabrication, characterization, to integration at system level. In particular, I am going to investigate the fundamental properties (optical and electrical) of semiconductor (quantum cascade lasers) and high power fiber lasers, and nanophotonic devices (such as graphene optoelectronic devices) in the infrared frequency regimes (inclulding near-IR (~1.5um), mid-IR (~3-30 um) and Terahertz (~60-300 um)) to improve their performance. Exploration of their broad potential applications is also one of the key focuses. We are always looking for strongly motivated both postdoc and Ph.D researchers dedicated to the cutting edge research in semiconductor and fiber lasers, nanotechnology, plasmonics and metamaterials, and nano-optics/photonics. Interested candidates please send your CV to qjwang@ntu.edu.sg. Shortlisted candidates will be contacted. Currently we have several postdoc positions available on the development of high performance fiber lasers and nanophotonics. Group Website: http://www.ntu.edu.sg/home/taojin/Home.html
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 Xiao Zhongmin	Nano and Micro Mechanics of interacting defects in Composite Materials; Elastic-plastic Fracture Mechanics for Engineering Structures and Materials; Failure Analysis and Prevention of Aerospace Structures, Offshore Structures and Related Materials.
Assoc Prof (Adj) Yao Kui	Yao Kui's research areas cover smart materials with sensing, actuation, power generation functions, and their integrations in micro and nano systems. The materials and the related functional mechanisms under his current interests include ferroelectric, piezoelectric, electrostrictive, photovoltaic, photostrictive, chemical and bio sensor materials. Working together with his research team and collaborators, he has designed and demonstrated a variety of sensors, actuators, and transducers on the basis of the functional mechanisms of the smart materials. Thin film depositions and micro/nano fabrication processes are used to produce many of the miniaturized devices. His research work has attracted significant interests for industry applications and currently he is active in collaborating with industry.
Prof Yoon Soon Fatt	III-V compound semiconductors (particularly nitrides and antimonides) Molecular beam epitaxy Nanophotonics and nanoelectronics: materials, physics and devices Heterogeneous integration of III-V compound semiconductors with silicon-based technology Microwave photonics: materials, physics and devices Quantum dot photonics for integrated nano-systems Low dimensional systems III-V terrestrial PV
Asst Prof Yoon Yong Jin	Biomimetic electroacoustic MEMS transducer Bio-chemical MEMS sensor Health monitoring medical device using sensor network Surgical simulation Psychoacoustic neuroscience
Asst Prof Yu Hao	1. Heterogeneous 3D-IC Design Platform 1)3D Big-data Computing System: TSV/TSI model and wide-I/O design; multi-core and non-volatile memory design; cyber-physical thermal/power management; 2)3D Lab-on-chip System: microscope on-chip; multi-mode bio-sensor data fusion; 2. Extreme-scale RF-IC Design Platform 1)RF Frontend Circuit Design: meta-material based CMOS THz transceiver design; THz model; 2)RF Electronic Design Automation: multi-core/GPU parallel algorithms; non-Monte-Carlo statistical algorithms; reachability analysis; nonlinear macro-modeling;
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.
Asst Prof Zhang Qichun	My research primarily is focus on creating functional materials by the rational synthesis and processing and on their practical applications, with particular interests in the following areas: (1) novel nanostructured thermoeletric materials and device fabrication; (2) inorganic nanomaterials: shaped and size controlled synthesis, colloidal dispersion, surface chemistry directed assembly and functionalities; (3) synthesis and characterization of porous materials with controllable morphology and composition; (4) synthesis and organization of semiconducting clusters; (5) organic conjugated materials.
Asst Prof Zhang Yilei	His main research interests are in bioinspired engineering, including bio-tribology, neural sensors, etc..
Prof Zhang Yue Ping	He has broad interests in radio science and technology with current emphasis on MMIC and RFIC design for wireless chip area network and antenna-in-package (AiP) technology for single-chip radio devices.
Asst Prof Zheng Lianxi	Prof. Zheng is working in the interdisciplinary field of nanoscience and nanotechnology, with the emphasis on nano materials, material/nano-bio interface, and nano-electronics. Particularly his research interests include: carbon nanotube fibers, smart nanotube based bio-sensors, full CNT electronics and ICs, nanowires and nanoparticles for solar energy (solar cells)/lighting applications (LEDs), and novel enable technologies on nano-material synthesis (CVD), as well as traditional semiconductor material and devices (detectors,Lasers), thin film deposition, and crystal epitaxy (MOCVD, MBE).
Assoc Prof Zhong Zhaowei	Mechatronics and Design; Microelectronics Packaging; Precision Engineering and Nanotechnology; Modelling and Analysis
Assoc Prof Zhou Xing	Prof Zhou Xing's areas of expertise are semiconductor device physics, modeling, simulation, technology CAD, mixed-signal CAD, Monte Carlo, ultrafast phenomena. His current research works focus on nanoscale compact model development for bulk/SOI/multigate/nanowire CMOS.
Prof Zhu Weiguang	ferroelectrics, multifunctional ultrathin films/superlattice by L-MBE, high-k dielectric thin films for CMOS, nanoelectronics & oxide-electronics, flexoelectricity, spintronics, sensors, electronic materials and their applications, thin film sensors, piezoelectric actuator, functional composite, nano-fabrication and characterization, pyroelectric IR sensor and arrays, MEMS micro-sensors and micro-actuators, ferroelectric field emission display, tunable dielectrics for microwave antenna and devices, diamond thin films, high Tc superconductor ceramics and Thin films, demixing in oxides, diffusion in multicomponent systems, mixed conduction in ß Alumina, crystallography, shape memory alloys, Martensite and Martensitic transformation, laser rainbow hologram, electron hologram.

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