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Kwan Wei Lek

Senior Lecturer, Associate Head of Cluster for Undergraduate Programme and Outreach (Science and Math)

Room Number: 1.302-24
Research Areas:
Material Science

Pillar / Cluster: Engineering Product Development, Science and Math


Kwan Wei Lek received his PhD degree at the Department of Materials Science and Engineering from the University of California, Los Angeles, under the supervision of Professor Yang Yang in 2009. During his PhD, he worked on stackable polymer memory devices and their underlying mechanism. Before joining SUTD, Wei Lek was a lecturer at the Singapore Polytechnic for 7 years and an adjunct faculty at the Singapore Institute of Technology.

He currently leads a group focusing on organic photo voltaic, organic dyes and printed electronics.

Total citations: 207, H-index: 8 (Web of Science, August 2012)

Education Background

  • PhD in Materials Science and Engineering, University of California, Los Angeles
  • MS in Electrical Engineering, National University of Singapore
  • BEng in Electrical and Electronic Engineering, Kyoto University

Research Interests

  • Organic Photovoltaic
  • Organic Dyes
  • Printed Electronics
  • Biosensors
  • Chemical Sensors

Key Publications

Review articles and book chapters

  1. T. W. Kim, Y. Yang, F. Li and W. L. Kwan, “Electrical memory devices based on inorganic/organic nanocomposites” NPG Asia Materials 4, e18 (2012)
  2. W.L. Kwan, Y. Yang, “Organic and polymer non-volatile memories: materials, devices and working mechanisms” in “Nonvolatile Memories: Materials, Devices, and Applications” T.-Y. Tseng, S.M. Sze Eds., American Scientific Publishers, California (2012)

Selected journals and conference papers

  1. R.J. Peh, Y. Lu, F. Zhao, C.-L. K. Lee, W.L. Kwan, “Vacuum-free processed transparent inverted organic solar cells with spray- coated PEDOT:PSS anode” Solar Energy Materials and Solar Cells, 95, 3579 (2011)
  2. C.H. Chou, W.L. Kwan, Z. Hong, L.M. Chen, Y. Yang, “Metal-oxide interconnection layer for polymer tandem solar cells with an inverted architecture” Advanced Materials, 23, 1282 (2011)
  3. W.L. Kwan, B. Lei, Y. Shao, S.V. Prikhodko, N. Bodzin, Y. Yang, “Direct observation of localized conduction pathways in photocross-linkable polymer memory” Journal of Applied Physics, 105, 124516 (2009)
  4. W.L. Kwan, R.J. Tseng, Y. Yang, “Multi-layer Stackable Polymer Memory Devices” Philos. Trans. R. Soc. A. 367, 4159 (2009)
  5. W.L. Kwan, R.J. Tseng, W. Wu, Q. Pei, Y. Yang, “Stackable Resistive Memory Device Using Photo Cross-linkable Copolymer” 2007 International Electron Device Meeting, Washington D.C. IEDM Technical Digest p237-240 (2007)
Research Highlights

Spray coating of PEDOT:PSS on hydrophobic surface

High efficiency inverted polymer solar cell

 Working mechanism of polymer memory device

Stackable polymer memory device