Visualization of domain and interfacial structures of Monolayer semiconductors by Nonlinear Optical Microscopy

POSTER

Abstract

Domain and interfacial structures of the monolayer transition metal dichalcogenides (TMD) are significant to diverse physics and performances. Unique carrier transportation and bandgap tunability could be engineered with inter-grain twisting, which provide an extra degree of freedom for device designing. Here, the correlation between GBs and inter-grain twisting in monolayer WS2 is studied using nonlinear microscopy. With the change of inter-grain twisting, domain and interfacial structures of the monolayer is monitored and studied.

*The authors acknowledge support from AOARD grant (co-funded with ONRG) FA2386-16-1-4009, Ministry of Science and Technology (MoST-106-2119-M-007-023-MY3; MoST-105-2811-M-007 -093; MoST-105-2112-M-007-032-MY3, MoST-105-2119-M-007-027, and MoST-105-2633-M-007-003), and Academia Sinica Research Program on Nanoscience and Nanotechnology, Taiwan.

Presenters

  • Chun An Chen

    • National Tsing-Hua University, National Tsing Hua University
    • National Tsing Hua University

Authors

  • Chun An Chen

    • National Tsing-Hua University, National Tsing Hua University
    • National Tsing Hua University

  • Ying-Yu Lai

    • National Tsing-Hua University, National Tsing Hua University
    • National Tsing Hua University
    • Materials Science and Engineering, National Tsing Hua University

  • Po-Yen Lin

    • Academia Sinica, Taiwan
    • Division of Core Facilities Imaging, Institute of Cellular and Organismic Biology, Academia Sinica, Taiwan

  • Xin-Quan Zhang

    • National Tsing-Hua University, National Tsing Hua University
    • Materials Science and Engineering, National Tsing Hua University

  • Meng-Hsi Chuang

    • National Tsing Hua University
    • National Tsing-Hua University, National Tsing Hua University
    • Materials Science and Engineering, National Tsing Hua University

  • Yi-Hsien Lee

    • National Tsing-Hua University, National Tsing Hua University
    • National Tsing Hua University