Journal of Physical Chemistry C, volume 119, issue 24, pages 13841-13846

Temperature-Dependent Photoluminescence of Ag2Se Quantum Dots

Changyin Ji 1
Tieqiang Zhang 2
Wenyan Liu 1
Xiaoyu Zhang 1
Hongzhi Shen 1
Yue Wang 1
Wenzhu Gao 2
Yiding Wang 1
Jun Zhao 3
Yu Zhang 1, 3
Publication typeJournal Article
Publication date2015-06-10
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.7
ISSN19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
The time-resolved photoluminescence spectroscopy was employed to analyze the optical properties of Ag2Se quantum dots with different diameters at temperatures of 80–360 K. The photoluminescence lifetime measurement disclosed that in the low-energy electronic structure there were two dominating emissive “in-gap” states associated with surface defect and intrinsic states, which were further confirmed by Gaussian fitting of the photoluminescence spectra. The temperature-dependent emission peak energy was fitted to phenomenological equations to extract the average phonon energy, the Huang–Rhys factor, and the excitonic acoustic phonon coupling coefficient. The relatively large phonon energy and small Huang–Rhys factor were demonstrated, which induced the small variation of emission peak energy in the low-temperature range. Meanwhile, the photoluminescence line width increased with temperature and was analyzed based on the standard equation describing the temperature dependence of the width of the ground state...

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GOST |
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GOST Copy
Ji C. et al. Temperature-Dependent Photoluminescence of Ag2Se Quantum Dots // Journal of Physical Chemistry C. 2015. Vol. 119. No. 24. pp. 13841-13846.
GOST all authors (up to 50) Copy
Ji C., Zhang T., Liu W., Zhang X., Shen H., Wang Y., Gao W., Wang Y., Zhao J., Zhang Yu. Temperature-Dependent Photoluminescence of Ag2Se Quantum Dots // Journal of Physical Chemistry C. 2015. Vol. 119. No. 24. pp. 13841-13846.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/acs.jpcc.5b01030
UR - https://doi.org/10.1021/acs.jpcc.5b01030
TI - Temperature-Dependent Photoluminescence of Ag2Se Quantum Dots
T2 - Journal of Physical Chemistry C
AU - Ji, Changyin
AU - Zhang, Tieqiang
AU - Liu, Wenyan
AU - Shen, Hongzhi
AU - Gao, Wenzhu
AU - Wang, Yiding
AU - Zhao, Jun
AU - Zhang, Yu
AU - Zhang, Xiaoyu
AU - Wang, Yue
PY - 2015
DA - 2015/06/10 00:00:00
PB - American Chemical Society (ACS)
SP - 13841-13846
IS - 24
VL - 119
SN - 1932-7447
SN - 1932-7455
ER -
BibTex |
Cite this
BibTex Copy
@article{2015_Ji,
author = {Changyin Ji and Tieqiang Zhang and Wenyan Liu and Hongzhi Shen and Wenzhu Gao and Yiding Wang and Jun Zhao and Yu Zhang and Xiaoyu Zhang and Yue Wang},
title = {Temperature-Dependent Photoluminescence of Ag2Se Quantum Dots},
journal = {Journal of Physical Chemistry C},
year = {2015},
volume = {119},
publisher = {American Chemical Society (ACS)},
month = {jun},
url = {https://doi.org/10.1021/acs.jpcc.5b01030},
number = {24},
pages = {13841--13846},
doi = {10.1021/acs.jpcc.5b01030}
}
MLA
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MLA Copy
Ji, Changyin, et al. “Temperature-Dependent Photoluminescence of Ag2Se Quantum Dots.” Journal of Physical Chemistry C, vol. 119, no. 24, Jun. 2015, pp. 13841-13846. https://doi.org/10.1021/acs.jpcc.5b01030.
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