Chemical Physics Letters, volume 203, issue 2-3, pages 271-276
Detection of shallow electron traps in quantum sized CdS by fluorescence quenching experiments
Publication type: Journal Article
Publication date: 1993-02-01
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
Stationary and time-resolved quenching measurements of the excitonic and trapped fluorescence of quantum sized CdS colloids were carried out. We found that nitromethane is only capable of quenching the excitonic fluorescence nearly completely, whereas a fraction of the trapped fluorescence, the amount of which depends on the particle size, always remains. Methylviologen, with a slightly more positive acceptor potential, is able to quench both types of fluorescence nearly completely in all the investigated samples. The findings are explained straightforwardly by a fluorescence mechanism involving shallow electron traps and deep hole traps located on the surface of the nanocrystalline particles.
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Hässelbarth A. et al. Detection of shallow electron traps in quantum sized CdS by fluorescence quenching experiments // Chemical Physics Letters. 1993. Vol. 203. No. 2-3. pp. 271-276.
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Hässelbarth A., Eychmüller A., Weller H. Detection of shallow electron traps in quantum sized CdS by fluorescence quenching experiments // Chemical Physics Letters. 1993. Vol. 203. No. 2-3. pp. 271-276.
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RIS
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TY - JOUR
DO - 10.1016/0009-2614(93)85400-I
UR - https://doi.org/10.1016/0009-2614(93)85400-I
TI - Detection of shallow electron traps in quantum sized CdS by fluorescence quenching experiments
T2 - Chemical Physics Letters
AU - Hässelbarth, A
AU - Eychmüller, Alexander
AU - Weller, H.
PY - 1993
DA - 1993/02/01
PB - Elsevier
SP - 271-276
IS - 2-3
VL - 203
SN - 0009-2614
SN - 1873-4448
ER -
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BibTex (up to 50 authors)
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@article{1993_Hässelbarth,
author = {A Hässelbarth and Alexander Eychmüller and H. Weller},
title = {Detection of shallow electron traps in quantum sized CdS by fluorescence quenching experiments},
journal = {Chemical Physics Letters},
year = {1993},
volume = {203},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016/0009-2614(93)85400-I},
number = {2-3},
pages = {271--276},
doi = {10.1016/0009-2614(93)85400-I}
}
Cite this
MLA
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Hässelbarth, A., et al. “Detection of shallow electron traps in quantum sized CdS by fluorescence quenching experiments.” Chemical Physics Letters, vol. 203, no. 2-3, Feb. 1993, pp. 271-276. https://doi.org/10.1016/0009-2614(93)85400-I.