ACS Nano, volume 3, issue 8, pages 2281-2287
Exciton−Trion Transitions in Single CdSe–CdS Core–Shell Nanocrystals
Daniel E. Gómez
1
,
Joel Van Embden
1
,
Paul Mulvaney
1
,
Mark J. Fernée
2
,
H. Rubinsztein-Dunlop
2
Publication type: Journal Article
Publication date: 2009-08-05
General Physics and Astronomy
General Materials Science
General Engineering
Abstract
We report on the observation of an intermediate state in the blinking of single CdSe/CdS core−shell nanocrystals. This state has a low quantum yield and connects the “on” and “off” states commonly observed in the photoluminescence blinking of individual nanocrystals. We find that the transitions between these two emitting states follow nearly single-exponential statistics. The transitions from the “on” state to this intermediate state result from changes in the surface passivation of the nanocrystal. The data are consistent with photoinduced, adsorption/desorption events that take place at the surface of the nanocrystals. The trion state leads to a reduction in photoluminescence in nanocrystals.
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Gómez D. E. et al. Exciton−Trion Transitions in Single CdSe–CdS Core–Shell Nanocrystals // ACS Nano. 2009. Vol. 3. No. 8. pp. 2281-2287.
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Gómez D. E., Van Embden J., Mulvaney P., Fernée M. J., Rubinsztein-Dunlop H. Exciton−Trion Transitions in Single CdSe–CdS Core–Shell Nanocrystals // ACS Nano. 2009. Vol. 3. No. 8. pp. 2281-2287.
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TY - JOUR
DO - 10.1021/nn900296q
UR - https://doi.org/10.1021/nn900296q
TI - Exciton−Trion Transitions in Single CdSe–CdS Core–Shell Nanocrystals
T2 - ACS Nano
AU - Gómez, Daniel E.
AU - Van Embden, Joel
AU - Mulvaney, Paul
AU - Fernée, Mark J.
AU - Rubinsztein-Dunlop, H.
PY - 2009
DA - 2009/08/05
PB - American Chemical Society (ACS)
SP - 2281-2287
IS - 8
VL - 3
SN - 1936-0851
SN - 1936-086X
ER -
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@article{2009_Gómez,
author = {Daniel E. Gómez and Joel Van Embden and Paul Mulvaney and Mark J. Fernée and H. Rubinsztein-Dunlop},
title = {Exciton−Trion Transitions in Single CdSe–CdS Core–Shell Nanocrystals},
journal = {ACS Nano},
year = {2009},
volume = {3},
publisher = {American Chemical Society (ACS)},
month = {aug},
url = {https://doi.org/10.1021/nn900296q},
number = {8},
pages = {2281--2287},
doi = {10.1021/nn900296q}
}
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MLA
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Gómez, Daniel E., et al. “Exciton−Trion Transitions in Single CdSe–CdS Core–Shell Nanocrystals.” ACS Nano, vol. 3, no. 8, Aug. 2009, pp. 2281-2287. https://doi.org/10.1021/nn900296q.