Journal of Applied Physics, volume 98, issue 8, pages 83514
Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method
Publication type: Journal Article
Publication date: 2005-10-15
Journal:
Journal of Applied Physics
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor: 3.2
ISSN: 00218979, 10897550
General Physics and Astronomy
Abstract
We have investigated the effects of surface modification on photoluminescence (PL) properties of CdS quantum dots (QDs) prepared by a reverse-micelle method. It is demonstrated that the modification of QD surface with a Cd(OH)2 layer leads to a strong enhancement of the band-edge PL intensity of CdS QDs in reverse micelles. The PL-decay profile before the surface modification exhibits a fast decay component less than 50ps. After the modification, the fast-decay component disappears. The drastic change of the PL-decay profiles before and after the surface modification corresponds to the marked increase of the PL intensity. This suggests that the strong enhancement of the band-edge PL intensity originates from the remarkable reduction of nonradiative recombination processes, which usually result in a very short decay time, due to surface defects of QDs.
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Kim D. et al. Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method // Journal of Applied Physics. 2005. Vol. 98. No. 8. p. 83514.
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Kim D., Miyamoto M., Mishima T., Nakayama M. Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method // Journal of Applied Physics. 2005. Vol. 98. No. 8. p. 83514.
Cite this
RIS
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TY - JOUR
DO - 10.1063/1.2106008
UR - https://doi.org/10.1063/1.2106008
TI - Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method
T2 - Journal of Applied Physics
AU - Kim, D.
AU - Miyamoto, M.
AU - Mishima, T.
AU - Nakayama, M.
PY - 2005
DA - 2005/10/15
PB - American Institute of Physics (AIP)
SP - 83514
IS - 8
VL - 98
SN - 0021-8979
SN - 1089-7550
ER -
Cite this
BibTex
Copy
@article{2005_Kim,
author = {D. Kim and M. Miyamoto and T. Mishima and M. Nakayama},
title = {Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method},
journal = {Journal of Applied Physics},
year = {2005},
volume = {98},
publisher = {American Institute of Physics (AIP)},
month = {oct},
url = {https://doi.org/10.1063/1.2106008},
number = {8},
pages = {83514},
doi = {10.1063/1.2106008}
}
Cite this
MLA
Copy
Kim, D., et al. “Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method.” Journal of Applied Physics, vol. 98, no. 8, Oct. 2005, p. 83514. https://doi.org/10.1063/1.2106008.