Andrew WEE Thye Shen
DPhil, University of Oxford, UK (1990)
Professor

Email: phyweets@nus.edu.sg
Office: S13-02-03
Tel: +65 6516 6362

Current Research

My research interests are in the atomic scale studies of the growth and interface properties of surfaces and interfaces, 2D materials and heterointerfaces, and 2D devices. Some recent projects include ferromagnetic 2D heterointerfaces, and on-surface synthesis of 2D molecular networks. My Surface Science Lab (SSL) has expertise in STM/STS, ncAFM, XPS/UPS, MBE as well as ARPES, XAS, XMCD at the Singapore Synchrotron Light Source (SSLS).

Figure. STM images of (a) a Type 1 lateral heterostructure and (b) a type 2 lateral heterostructure in the PtSe2/NbTe2 system. (c) Position-dependent STS corresponding to the red dots in (b) showing the evolution of the electronic property from semiconducting to metallic.

Selected Publications

  • R Chua, J Zhou, X Yu, W Yu, J Gou, R Zhu, L Zhang, M Liu, MBH Breese, W Chen, KP Loh, YP Feng, M Yang, YL Huang, ATS Wee, “Room temperature ferromagnetism of monolayer chromium telluride with perpendicular magnetic anisotropy”, Advanced Materials 33 (42), 2103360 (2021).
  • X Yin, CS Tang, Y Zheng, J Gao, J Wu, H Zhang, M Chhowalla, W Chen, ATS Wee, “Recent developments in 2D transition metal dichalcogenides: Phase transition and applications of the (quasi-) metallic phases”, Chemical Society Reviews 50 (18), 10087-10115 (2021).
  • D Wang, Z Wang, W Liu, Arramel, S Zhong, YP Feng, KP Loh, ATS Wee, “Real‐Space Investigation of the Multiple Halogen Bonds by Ultrahigh‐Resolution Scanning Probe Microscopy”, Small 18 (28), 2202368 (2022).
  • Q Guo, XZ Qi, L Zhang, M Gao, S Hu, W Zhou, W Zang, X Zhao, J Wang, B Yan, M Xu, Y-K Wu, G Eda, Z Xiao, SA Yang, H Gou, YP Feng, G-C Guo, W Zhou, X-F Ren, C-W Qiu, SJ Pennycook, ATS Wee; “Ultrathin quantum light source with van der Waals NbOCl2 crystal”, Nature 613 (7942), 53-59 (2023).
  • J Gou, H Bai, X Zhang, YL Huang, S Duan, A Ariando, SA Yang, L Chen, Y Lu, ATS Wee; “Two-dimensional ferroelectricity in a single-element bismuth monolayer”, Nature 617 67–72 (2023).
  • R Chua, J Zhou, X Yu, W Yu, J Gou, R Zhu, L Zhang, M Liu, MBH Breese, W Chen, KP Loh, YP Feng, M Yang, YL Huang, ATS Wee “Room temperature ferromagnetism of monolayer chromium telluride with perpendicular magnetic anisotropy”, Advanced Materials 33 (42), 2103360 (2021).
  • R Chua, J Henke, S Saha, Y Huang, J Gou, X He, T Das, J van Wezel, A Soumyanarayanan, ATS Wee, “Coexisting Charge-Ordered States with Distinct Driving Mechanisms in Monolayer VSe2”, ACS Nano 16 (1), 783-791 (2021).
  • D Wang, Z Wang, S Wu, Arramel, X Yin, CS Tang, YP Feng, J Wu, ATS Wee, “Realizing Two-Dimensional Supramolecular Arrays of a Spin Molecule via Halogen Bonding”, ACS Nanoscience Au 2 (4), 333-340 (2022).
  • CS Tang, S Zeng, C Diao, J Wu, S Chen, MBH Breese, C Cai, T Venkatesan, A Ariando, ATS Wee, X Yin, “Two-dimensional charge localization at the perovskite oxide interface”, Applied Physics Reviews 9 (3) (2022).
  • Q Liang, Z Chen, Q Zhang, ATS Wee, “Pentagonal 2D Transition Metal Dichalcogenides: PdSe2 and Beyond”, Advanced Functional Materials 32 (38), 2203555 (2022).

Affiliations & Links