Journal article 1110 views 307 downloads
Controlling the luminescence of monolayer MoS2 based on the piezoelectric effect
Lijie Li 
,
Yan Zhang
,
Yan Zhang
Nano Research
Swansea University Author:
Lijie Li
-
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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...
| Published in: | Nano Research |
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| ISSN: | 1998-0124 1998-0000 |
| Published: |
2017
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa31840 |
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| 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. |
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| College: |
Faculty of Science and Engineering |