Chemical Physics Letters, volume 330, issue 3-4, pages 237-242
Radiative and nonradiative lifetimes of band edge states and deep trap states of CdS nanoparticles determined by time-correlated single photon counting
Publication type: Journal Article
Publication date: 2000-11-01
Journal:
Chemical Physics Letters
Q2
Q1
SJR: 0.502
CiteScore: 5.7
Impact factor: 2.8
ISSN: 00092614, 18734448
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract
Emission lifetimes of band edge and deep trap states of CdS nanoparticles with different surface capping were measured. For unpassivated nanoparticles with low fluorescence, the emission is dominated by deep trap states and the decay (5 ns) is independent of excitation intensity. For surface passivated nanoparticles with strong luminescence, the emission is dominated by band edge states with a fast and slow decay (a few ns and 50 ns). The slow decay is independent of intensity and the fast component is strongly dependent on intensity. The results support the model of exciton–exciton annihilation upon trap state saturation at high intensities.
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Wu F. et al. Radiative and nonradiative lifetimes of band edge states and deep trap states of CdS nanoparticles determined by time-correlated single photon counting // Chemical Physics Letters. 2000. Vol. 330. No. 3-4. pp. 237-242.
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Wu F., Zhang J., Kho R., Mehra R. K. Radiative and nonradiative lifetimes of band edge states and deep trap states of CdS nanoparticles determined by time-correlated single photon counting // Chemical Physics Letters. 2000. Vol. 330. No. 3-4. pp. 237-242.
Cite this
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TY - JOUR
DO - 10.1016/S0009-2614(00)01114-3
UR - https://doi.org/10.1016/S0009-2614(00)01114-3
TI - Radiative and nonradiative lifetimes of band edge states and deep trap states of CdS nanoparticles determined by time-correlated single photon counting
T2 - Chemical Physics Letters
AU - Wu, F.
AU - Zhang, Jin
AU - Kho, R.
AU - Mehra, R K
PY - 2000
DA - 2000/11/01
PB - Elsevier
SP - 237-242
IS - 3-4
VL - 330
SN - 0009-2614
SN - 1873-4448
ER -
Cite this
BibTex (up to 50 authors)
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@article{2000_Wu,
author = {F. Wu and Jin Zhang and R. Kho and R K Mehra},
title = {Radiative and nonradiative lifetimes of band edge states and deep trap states of CdS nanoparticles determined by time-correlated single photon counting},
journal = {Chemical Physics Letters},
year = {2000},
volume = {330},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016/S0009-2614(00)01114-3},
number = {3-4},
pages = {237--242},
doi = {10.1016/S0009-2614(00)01114-3}
}
Cite this
MLA
Copy
Wu, F., et al. “Radiative and nonradiative lifetimes of band edge states and deep trap states of CdS nanoparticles determined by time-correlated single photon counting.” Chemical Physics Letters, vol. 330, no. 3-4, Nov. 2000, pp. 237-242. https://doi.org/10.1016/S0009-2614(00)01114-3.