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Controlling the luminescence of monolayer MoS2 based on the piezoelectric effect

Lijie Li Orcid Logo, Yan Zhang

Nano Research

Swansea University Author: Lijie Li Orcid Logo

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DOI (Published version): 10.1007/s12274-017-1457-y

Abstract

We report on manipulating the stimulated emission of monolayer molybdenum disulfide (MoS2) with the piezoelectric effect. The analysis is based on quantum mechanics. The stimulated emission of this two-dimensional material has been simulated to establish the relation between the total emission rate...

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Published in: Nano Research
ISSN: 1998-0124 1998-0000
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa31840
Abstract: We report on manipulating the stimulated emission of monolayer molybdenum disulfide (MoS2) with the piezoelectric effect. The analysis is based on quantum mechanics. The stimulated emission of this two-dimensional material has been simulated to establish the relation between the total emission rate and the energy of the photon excitation. We demonstrate that the piezoelectric-induced charges enhance the emission rate by changing the carrier concentration. It is found that the emission intensity is proportional to the carrier density in the low-density range, and eventually reaches a steady value in the high-density region. An externally applied mechanical force also leads to a change in the second harmonic generation of the monolayer MoS2.
College: Faculty of Science and Engineering

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