Nano Letters, volume 11, issue 3, pages 1136-1140

Biexciton quantum yield of single semiconductor nanocrystals from photon statistics.

Publication typeJournal Article
Publication date2011-02-02
Journal: Nano Letters
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor10.8
ISSN15306984, 15306992
PubMed ID:  21288042
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Bioengineering
Abstract
Biexciton properties strongly affect the usability of a light emitter in quantum photon sources and lasers but are difficult to measure for single fluorophores at room temperature due to luminescence intermittency and bleaching at the high excitation fluences usually required. Here, we observe the biexciton (BX) to exciton (X) to ground photoluminescence cascade of single colloidal semiconductor nanocrystals (NCs) under weak excitation in a g((2)) photon correlation measurement and show that the normalized amplitude of the cascade feature is equal to the ratio of the BX to X fluorescence quantum yields. This imposes a limit on the attainable depth of photon antibunching and provides a robust means to study single emitter biexciton physics. In NC samples, we show that the BX quantum yield is considerably inhomogeneous, consistent with the defect sensitivity expected of the Auger nonradiative recombination mechanism. The method can be extended to study X,BX spectral and polarization correlations.

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GOST |
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Nair G., Zhao J., Bawendi M. G. Biexciton quantum yield of single semiconductor nanocrystals from photon statistics. // Nano Letters. 2011. Vol. 11. No. 3. pp. 1136-1140.
GOST all authors (up to 50) Copy
Nair G., Zhao J., Bawendi M. G. Biexciton quantum yield of single semiconductor nanocrystals from photon statistics. // Nano Letters. 2011. Vol. 11. No. 3. pp. 1136-1140.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/nl104054t
UR - https://doi.org/10.1021/nl104054t
TI - Biexciton quantum yield of single semiconductor nanocrystals from photon statistics.
T2 - Nano Letters
AU - Nair, Gautham
AU - Zhao, Jiyong
AU - Bawendi, Moungi G.
PY - 2011
DA - 2011/02/02 00:00:00
PB - American Chemical Society (ACS)
SP - 1136-1140
IS - 3
VL - 11
PMID - 21288042
SN - 1530-6984
SN - 1530-6992
ER -
BibTex |
Cite this
BibTex Copy
@article{2011_Nair,
author = {Gautham Nair and Jiyong Zhao and Moungi G. Bawendi},
title = {Biexciton quantum yield of single semiconductor nanocrystals from photon statistics.},
journal = {Nano Letters},
year = {2011},
volume = {11},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/nl104054t},
number = {3},
pages = {1136--1140},
doi = {10.1021/nl104054t}
}
MLA
Cite this
MLA Copy
Nair, Gautham, et al. “Biexciton quantum yield of single semiconductor nanocrystals from photon statistics..” Nano Letters, vol. 11, no. 3, Feb. 2011, pp. 1136-1140. https://doi.org/10.1021/nl104054t.
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