Theoretical investigations on abnormal phases of transition metal dichalcogenides

Title

Theoretical investigations on abnormal phases of transition metal dichalcogenides

Speaker

Prof. Zhixin Hu (Tianjin University, China)

Host

Prof. Kai Huang (GTIIT, Chemistry)

Time and Location

Jul. 14 2022, Thursday, 3:00pm-4:00pm(China Time), E211 (Education Building, 2nd floor)

Language

Chinese

Zoom

https://gtiit.zoom.us/j/94609938903

Abstract

Transition metal dichalcogenides (TMD) are known for their tunable electronic properties and wide application on field effect transistors, catalysis or solar cells. Most common lattice structures of TMD materials are 2H and 1T phases. But there are also other phases, which can be manipulated by interface interaction, electron beam and heating. In this lecture, I will introduce the theoretical investigation on the phase selection or transformation. Those new phases involve change of lattice symmetry and electronic properties.

 References

[1] F. Cheng, Z. X. Hu, H. Xu et al., ACS Nano 2019, 13, 2316-2323.

[2] J. H. Hong, X. Chen, P. Li et al., Advanced Materials 2022, 34, 2200643.

Biography

Zhixin Hu received his doctoral degree at department of physics at Renmin University of China in 2015. Then he worked as a post-doc in University of Toronto. Since 2017 he has joined the center for joint quantum studies at Tianjin University. His research focuses on the ab-initio simulations for low-dimensional materials and interfaces. So far he has published more than 30 articles, with more than 4000 times cited (Publons).