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Physical Review Letters, volume 106, issue 18, publication number 187401

Near-Unity Quantum Yields of Biexciton Emission fromCdSe/CdSNanocrystals Measured Using Single-Particle Spectroscopy

Publication typeJournal Article
Publication date2011-05-03
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor8.6
ISSN00319007, 10797114
General Physics and Astronomy
Abstract
Biexciton photoluminescence (PL) quantum yields (Q(2X)) of individual CdSe/CdS core-shell nanocrystal quantum dots with various shell thicknesses are derived from independent PL saturation and two-photon correlation measurements. We observe a near-unity Q(2X) for some nanocrystals with an ultrathick 19-monolayer shell. High Q(2X)'s are, however, not universal and vary widely among nominally identical nanocrystals indicating a significant dependence of Q(2X) upon subtle structural differences. Interestingly, our measurements indicate that high Q(2X)'s are not required to achieve complete suppression of PL intensity fluctuations in individual nanocrystals.

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Park Y. et al. Near-Unity Quantum Yields of Biexciton Emission fromCdSe/CdSNanocrystals Measured Using Single-Particle Spectroscopy // Physical Review Letters. 2011. Vol. 106. No. 18. 187401
GOST all authors (up to 50) Copy
Park Y., Malko A. V., Malko A., Vela J., Vela J., Chen Y., Ghosh Y., García-Santamaría F., Hollingsworth J., Hollingsworth J. A., KLIMOV V. I., Klimov V. I., HTOON H., Htoon H. Near-Unity Quantum Yields of Biexciton Emission fromCdSe/CdSNanocrystals Measured Using Single-Particle Spectroscopy // Physical Review Letters. 2011. Vol. 106. No. 18. 187401
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Cite this
RIS Copy
TY - JOUR
DO - 10.1103/PhysRevLett.106.187401
UR - https://doi.org/10.1103/PhysRevLett.106.187401
TI - Near-Unity Quantum Yields of Biexciton Emission fromCdSe/CdSNanocrystals Measured Using Single-Particle Spectroscopy
T2 - Physical Review Letters
AU - Park, Y.-S.
AU - Malko, A V
AU - Vela, J.
AU - Chen, Y.
AU - Ghosh, Y.
AU - García-Santamaría, F.
AU - Hollingsworth, J.A.
AU - KLIMOV, V. I.
AU - HTOON, H.
AU - Malko, A.
AU - Vela, J
AU - Hollingsworth, Jennifer A.
AU - Klimov, Victor I.
AU - Htoon, Han
PY - 2011
DA - 2011/05/03 00:00:00
PB - American Physical Society (APS)
IS - 18
VL - 106
SN - 0031-9007
SN - 1079-7114
ER -
BibTex
Cite this
BibTex Copy
@article{2011_Park,
author = {Y.-S. Park and A V Malko and J. Vela and Y. Chen and Y. Ghosh and F. García-Santamaría and J.A. Hollingsworth and V. I. KLIMOV and H. HTOON and A. Malko and J Vela and Jennifer A. Hollingsworth and Victor I. Klimov and Han Htoon},
title = {Near-Unity Quantum Yields of Biexciton Emission fromCdSe/CdSNanocrystals Measured Using Single-Particle Spectroscopy},
journal = {Physical Review Letters},
year = {2011},
volume = {106},
publisher = {American Physical Society (APS)},
month = {may},
url = {https://doi.org/10.1103/PhysRevLett.106.187401},
number = {18},
doi = {10.1103/PhysRevLett.106.187401}
}
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