Many-Body Effect on Optical Properties of Monolayer Molybdenum Diselenide
نویسندگان
چکیده
Excitons in monolayer transition metal dichalcogenides (TMDs) provide a paradigm of composite Boson two-dimensional system. This Letter reports photoluminescence and reflectance study excitons molybdenum diselenide (MoSe2) with electrostatic gating. We observe the repulsive attractive Fermi polaron modes band edge exciton, its excited state, spin-off excitons, which simple three-particle trion model is insufficient to explain. The contrasting energy shift between exciton charge-bound (repulsive modes) remarkably different gate dependence splitting ground state unambiguously support picture for TMDs.
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ژورنال
عنوان ژورنال: Journal of Physical Chemistry Letters
سال: 2021
ISSN: ['1948-7185']
DOI: https://doi.org/10.1021/acs.jpclett.1c00320