Journal of Physical Chemistry C, volume 119, issue 1, pages 867-872

Theoretical and Experimental Investigation of the Electronic Structure and Quantum Confinement of Wet-Chemistry Synthesized Ag2S Nanocrystals

Shu Lin 1
Yu Feng 1
Xiao-Ming Wen 1
Pengfei Zhang 1
Sanghun Woo 1
Santosh Man Shrestha 1
Gavin Conibeer 1
Shujuan Huang 1
Publication typeJournal Article
Publication date2014-12-18
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 electronic and excitonic confinement of monoclinic silver sulfide Ag2S nanocrystals (NCs) has been investigated both theoretically and experimentally. Theoretically, the electronic band gaps and the excitonic ground-state energies of Ag2S NCs at different sizes are calculated using a hybrid method of density-functional theory (DFT) and effective mass approximation (EMA). The results have shown a good agreement with measured results, including the absorbance and photoluminescence spectra of drop-casted NC thin films. The Ag2S NCs, synthesized using wet-chemistry methods, have demonstrated a desirable size monodispersion, allowing the measurements to be sufficiently accurate. The results show that both the electronic band gap and the excitonic energy have significant blue shift only when the diameter of monodispersed NCs is reduced below 4 nm, and the excitonic Bohr radius of Ag2S is determined as being small at around 1 nm.

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Lin S. et al. Theoretical and Experimental Investigation of the Electronic Structure and Quantum Confinement of Wet-Chemistry Synthesized Ag2S Nanocrystals // Journal of Physical Chemistry C. 2014. Vol. 119. No. 1. pp. 867-872.
GOST all authors (up to 50) Copy
Lin S., Feng Yu., Wen X., Zhang P., Woo S., Shrestha S. M., Conibeer G., Huang S. Theoretical and Experimental Investigation of the Electronic Structure and Quantum Confinement of Wet-Chemistry Synthesized Ag2S Nanocrystals // Journal of Physical Chemistry C. 2014. Vol. 119. No. 1. pp. 867-872.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/jp511054g
UR - https://doi.org/10.1021/jp511054g
TI - Theoretical and Experimental Investigation of the Electronic Structure and Quantum Confinement of Wet-Chemistry Synthesized Ag2S Nanocrystals
T2 - Journal of Physical Chemistry C
AU - Lin, Shu
AU - Feng, Yu
AU - Woo, Sanghun
AU - Wen, Xiao-Ming
AU - Zhang, Pengfei
AU - Shrestha, Santosh Man
AU - Conibeer, Gavin
AU - Huang, Shujuan
PY - 2014
DA - 2014/12/18 00:00:00
PB - American Chemical Society (ACS)
SP - 867-872
IS - 1
VL - 119
SN - 1932-7447
SN - 1932-7455
ER -
BibTex |
Cite this
BibTex Copy
@article{2014_Lin,
author = {Shu Lin and Yu Feng and Sanghun Woo and Xiao-Ming Wen and Pengfei Zhang and Santosh Man Shrestha and Gavin Conibeer and Shujuan Huang},
title = {Theoretical and Experimental Investigation of the Electronic Structure and Quantum Confinement of Wet-Chemistry Synthesized Ag2S Nanocrystals},
journal = {Journal of Physical Chemistry C},
year = {2014},
volume = {119},
publisher = {American Chemical Society (ACS)},
month = {dec},
url = {https://doi.org/10.1021/jp511054g},
number = {1},
pages = {867--872},
doi = {10.1021/jp511054g}
}
MLA
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MLA Copy
Lin, Shu, et al. “Theoretical and Experimental Investigation of the Electronic Structure and Quantum Confinement of Wet-Chemistry Synthesized Ag2S Nanocrystals.” Journal of Physical Chemistry C, vol. 119, no. 1, Dec. 2014, pp. 867-872. https://doi.org/10.1021/jp511054g.
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