TY  - JOUR
AU  - Li, Lijie
AU  - Zhang, Yan
PY  - 2017
TI  - Controlling the luminescence of monolayer MoS2 based on the piezoelectric effect
JO  - Nano Research
SN  - 1998-0124
SP  - 2527
EP  - 2534
VL  - 10
IS  - 7
AB  - 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.
UR  - https://doi.org/10.1007/s12274-017-1457-y
DO  - 10.1007/s12274-017-1457-y