Open AccessTemperature-dependent photoluminescence properties of quaternary ZnAgInS quantum dots
Author(s) -
Ping Zhou,
Xiaosong Zhang,
Xiaojuan Liu,
Jianping Xu,
Lan Li
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.019506
Subject(s) - photoluminescence , quantum dot , materials science , blueshift , luminescence , spectral line , optoelectronics , spontaneous emission , optics , emission spectrum , molecular physics , laser , chemistry , physics , astronomy
A series of ZnAgInS (ZAIS) quantum dots were synthesized and their optical properties were tuned by adjusting the reaction times from 5 to 30 min. The emission spectra were observed ranging from 619 to 667 nm. The temperature-dependent photoluminescence properties of ZAIS QDs were investigated from 10 K to 300 K that show a blue shift of spectra line with increasing intensity as well as broadening of spectral line owing to the coupling of the carrier to acoustic phonon. We have also discussed and investigated the internal luminescence mechanism of ZAIS QDs.