Energy Splitting Between 2s And 2p Excitons in hBN-encapsulated Monolayer WSe2

Poster (MATL-P5)

Fri, 13 Nov 2020 01:15am to 03:00am

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Optical sum-frequency generation spectroscopy reveals a clear dipole-inactive 2p exciton peak in hBN-encapsulated monolayer WSe2 under excitation with broadband picosecond near infrared laser pulses (spectral range 0.561.3 eV). The splitting energy between 2s and 2p states is determined as 8.8 +/- 0.1 meV.

Download Abstract: pid6597491.pdf

Presenters and Authors Info

Presenter: Anonymous

Authors: Kusaba, Satoshi; Katagiri, Yoshiki; Watanabe, Kenji; Taniguchi, Takashi; Yanagi, Kazuhiro; Naka, Nobuko; Tanaka, Koichiro

Kyoto University, National Institute for Materials Science, Tokyo Metropolitan University