Exciton-Driven Ultrafast Enhancement of Quasiparticle Bandgap and Effective Mass in Monolayer MoS2

Yi Lin, Yang Hao Chan, Woojoo Lee, Li Syuan Lu, Zhenglu Li, Wen Hao Chang, Chih Kang Shih, Robert A. Kaindl, Steven G. Louie, Alessandra Lanzara

研究成果: Conference contribution同行評審

摘要

We report an ultrafast increase of the quasi-particle bandgap and effective mass in photoexcited monolayer MoS2 on HOPG, utilizing extreme-ultraviolet time- and angle-resolved photoemission spectroscopy (XUV-trARPES). Combined with theoretical models, we attribute these compelling band renormalizations to the excitonic effects from bound electron-hole pairs.

原文English
主出版物標題CLEO
主出版物子標題QELS_Fundamental Science, QELS 2022
發行者Optica Publishing Group (formerly OSA)
ISBN(電子)9781557528209
出版狀態Published - 2022
事件CLEO: QELS_Fundamental Science, QELS 2022 - San Jose, United States
持續時間: 15 5月 202220 5月 2022

出版系列

名字Optics InfoBase Conference Papers

Conference

ConferenceCLEO: QELS_Fundamental Science, QELS 2022
國家/地區United States
城市San Jose
期間15/05/2220/05/22

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