XJTU researchers make significant progress in the study of vertical hererostructures of transition-metal dichalcogenide (TMD) materials

2018-06-20  []

Recently, Professor Pan Yi from the research team led by Professor Min Tai of the School of Material Science and Engineering, collaborating with scientists from the United States and Germany, conducted a series of in-depth research on MoS2-WSe2. The research findings were published on Nano Letters recently with the title of "Quantum-Confined Electronic States Arising from the Moiré Pattern of MoS2-WSe2 Heterobilayers".


They measured the MoS2-WSe2 samples prepared by metal organic chemical vapor deposition (MOCVD) by using scanning tunneling microscopy (STM) at temperatures of 5K and 80 K. In addition, it was demonstrated that periodic arrays of such localized electronic states can be considered as quasi-periodic quantum dotarrays, and may be applied to quantum devices such as single-photon sources in the future.