Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session P40: Matter in Extreme Environments V: Novel Chemistry
2:30 PM–5:18 PM,
Wednesday, March 4, 2020
Room: 705
Sponsoring
Units:
DCOMP DMP
Chair: Koichiro Umemoto
Abstract: P40.00011 : Physical property modulation in 2D TMDs homo- and hetero-structures via pressure engineering
Presenter:
Juan Xia
(University of Electronic Science and Technology of China)
Author:
Juan Xia
(University of Electronic Science and Technology of China)
In this talk, we demonstrate effective tuning of the excitonic states by controlling the interlayer distance in TMDs vdWs HSs, and further tune the interlayer spacing and thus the band structure using hydrostatic pressure. In addition, we perform DFT calculations and achieve good agreement with the experimental observations, revealing a pressured-induced changeover in the band structure of the HSs. This may offer new insights into the strong interlayer interaction and electron-phonon coupling in TMDs via pressure engineering, which can be exploited for designing new excitonic devices based on 2D vdWs HSs.
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