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Photo Luminescence and Radiative Carrier Losses in Monolayer Transition Metal Dichalcogenides
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DOI：10.1021/acs.nanolett.4c00705.png)
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Abstract
En 中文
The carrier losses due to radiative recombination in monolayer transition metal dichalcogenides are studied using fully microscopic many-body models. The density- and temperature-dependent losses in various Mo- and W-based materials are shown to be dominated by Coulomb correlations beyond the Hartree-Fock level. Despite the much stronger Coulomb interaction in 2D materials, the radiative losses are comparable-if not weaker-than in conventional III-V materials. A strong dependence on the dielectric environment is found in agreement with experimental results.
Keywords:
Photoluminescence
radiative lifetimes
transitionmetal dichalcogenide
monolayer
excitonic correlations
luminescence equations