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MoS 2 : Acoustic–Excitonic Coupling for Dynamic Photoluminescence Manipulation of Quasi ‐ 2D MoS 2 Nanoflakes (Advanced Optical Materials 7/2015)
Author(s) -
Rezk Amgad R.,
Walia Sumeet,
Ramanathan Rajesh,
Nili Hussein,
Ou Jian Zhen,
Bansal Vipul,
Friend James R.,
Bhaskaran Madhu,
Yeo Leslie Y.,
Sriram Sharath
Publication year - 2015
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201570038
Subject(s) - photoluminescence , materials science , optoelectronics , absorption (acoustics) , coupling (piping) , charge carrier , photon , optics , composite material , physics
S. Sriram and co‐workers report a new way to control the photoluminescence (PL) response in atomically thin, quasi‐2D molybdenum disulphide. On page 888, it is shown that high‐frequency surface acoustic waves alter the behaviour of charge carriers, interfering with the time lag between photon absorption and light emission. This mechanism is exploited to controllably modulate the PL.