Academic Profile

Academic Profile

Assoc Prof Lydia Helena Wong

Associate Professor, School of Materials Science & Engineering

Email: lydiawong@ntu.edu.sg
Phone: +65 65138292
Office: N4.1 02 27A
Assoc Prof Lydia Helena Wong

Biography
Lydia received her B. Appl.Sci. with Honors and Ph.D. in Materials Science and Engineering from NTU in 2002 and 2007, respectively. She worked as a Senior Engineer at the Technology Development Department of Chartered Semiconductor Manufacturing in the area of advanced gate oxide technology from early 2006 to mid-2008. She has been a Teaching Fellow at the Division of Materials Technology since May 2008.
Research Interests
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.
Current Projects
  • Atomic Level Transformations for Electronics and Renewable Energy (ALTER)
  • CIGS Solar Cells And Mini-Modules : Establishment Of An R&DPilot Line In Singapore And Associated Industry-Relevant Device Research
  • CIGS Solar Cells And Mini-Modules : Establishment Of An R&DPilot Line In Singapore And Associated Industry-Relevant Device Research
  • CIGS Solar Cells and Mini-Modules : Establishment of An R&D Pilot Line in Singapore And Associated Industry-Relevant Device Research
  • Charge Transfer Processes at the Semiconductor-Catalyst Interface in Photoelectrodes for Solar Water Splitting
  • Hybrid photocatalysts for H2 photoproduction
  • Improving Efficiency and Reducing Environment Impact of CZTS Based Solar Cells
  • Investigation of Hematite as the Photoanode for Artificial Photosynthesis
  • Light Weight Thin Film Solar Cell for Applications in Buildings and Parks
  • Nanomaterials for Solar Energy Harvesting
  • Photovoltaic Glass with Improved Heat Management
  • Predictive Screening of Cation-substituted photoelectrodes for water splitting
  • Roll to roll manufacturing of printed electronics : Printed Photovoltaic
Selected Publications
  • Padinhare Cholakkal Harikesh, Bo Wu, Biplab Ghosh, Rohit Abraham John, Stener Lie, Krishnamoorthy Thirumal, Lydia Helena Wong, Tze Chien Sum, Subodh Mhaisalkar, Nripan Mathews. (2018). Doping and Switchable Photovoltaic Effect in Lead‐Free Perovskites Enabled by Metal Cation Transmutation. Advanced Materials, 30(34), 1802080.
  • Muhammad Aamir Hassan, Mohammad Mujahid, Leow Shin Woei and Lydia Helena Wong. (2018). Spray pyrolysis synthesized Cu(In,Al)(S,Se)2 thin films solar cells. Materials Research Express, 5(3).
  • Wenjie Li, Dr. Joel Ming Rui Tan, Dr. Shin Woei Leow, Stener Lie, Prof. Shlomo Magdassi, Prof. Lydia Helena Wong. (2018). Recent Progress in Solution‐Processed Copper‐Chalcogenide Thin‐Film Solar Cells. Energy Technology, 6(1), 46-59.
  • J. M. R. Tan, M. Scott, W. Hao, T. Baikie, C. T. Nelson, S. Pedireddy, R. Tao, X. Ling, S. Magdassi, T. White, S. Li, A. M. Minor, H. Zheng and L. H. Wong. (2017). Revealing Cation Exchange Induced Phase Transformations in Multi-Elemental Chalcogenide Nanoparticles. Chemistry of Materials, 29, 9192-9199.
  • Gurudayal, RA John, PP Boix, C Yi, C Shi, MC Scott, SA Veldhuis, AM Minor, SM Zakeerrudin, LH Wong, M Graetzel, N Mathews. (2017). Atomically Altered Hematite for Highly Efficient Perovskite Tandem Water-Splitting Devices. ChemSusChem, 10(11), 2449-2456.

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