Andrew WEE Thye Shen

DPhil, University of Oxford, UK (1990)

Class of ’62 Professor
Office : S13-02-03  |  Tel : (65) 6516 6362
Email : phyweets@nus.edu.sg

Current Research

  • Professor Wee’s research interests are in the field of surface and interface science, and include scanning tunneling microscopy (STM) and synchrotron radiation studies of the molecule-substrate interface, organic-organic heterojunctions, graphene and 2D materials and devices.

Scanning tunneling microscopy/spectroscopy (STM/STS) data showing a single-layer (SL), bilayer (BL) and trilayer (TL) molybdenum disuphide (MoS2) [Nature Comm. (2015)]

Selected Publications

  1. X. Yin, Q. Wang, L. Cao, C.S. Tang, X. Luo, Y. Zheng, L.M. Wong, S.J. Wang, S.Y. Quek, W. Zhang, A. Rusydi, A.T.S. Wee, “Tunable inverted gap in monolayer quasi-metallic MoS2 induced by strong charge-lattice coupling” Nat. Commun. 8, 486 (2017).

  2. Z. Song, T. Schultz, Z. Ding, B. Lei, C. Han, P. Amsalem, T. Lin, D. Chi, S.L. Wong, Y. Zheng, M.-Y. Li, L.-J. Li, W. Chen, N. Koch, Y.L. Huang, A.T.S. Wee, “Electronic Properties of a 1D Intrinsic/p-Doped Heterojunction in a 2D Transition Metal Dichalcogenide Semiconductor”, ACS Nano 11, 9128-9135 (2017).

  3. P.K. Gogoi, Z. Hu, Q. Wang, A. Carvalho, D. Schmidt, X. Yin, Y.-H. Chang, L.-J. Li, C.H. Sow, A. H. Castro Neto, M.B.H. Breese, A. Rusydi, A.T.S. Wee, “Oxygen Passivation Mediated Tunability of Trion and Excitons in MoS2”, Phys. Rev. Lett. 119, 077402 (2017).

  4. Y.L. Huang, Z.J. Ding, W.J. Zhang, Y.H. Chang, Y. Shi, L.J. Li, Z.B. Song, Y.J. Zheng, D.Z. Chi, S.Y. Quek, A.T.S. Wee, “Gap States at Low-Angle Grain Boundaries in Monolayer Tungsten Diselenide”, Nano Lett. 16, 3682 (2016).

  5. Z. Wang, Z. Dong, Y. Gu, Y.H. Chang, L. Zhang, L.J. Li, W. Zhao, G. Eda, W.J. Zhang, G. Grinblat, S.A. Maier, J.K.W. Yang, C.W. Qiu, A.T.S. Wee, “Giant photoluminescence enhancement in tungstendiselenide-gold plasmonic hybrid structures”, Nat. Commun. 7, 11283 (2016).

Affiliations & Links