ACS Nano, volume 12, issue 4, pages 3397-3405

Two Mechanisms Determine Quantum Dot Blinking.

Publication typeJournal Article
Publication date2018-03-26
Journal: ACS Nano
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor17.1
ISSN19360851, 1936086X
General Physics and Astronomy
General Materials Science
General Engineering
Abstract
Many potential applications of quantum dots (QDs) can only be realized once the luminescence from single nanocrystals (NCs) is understood. These applications include the development of quantum logic devices, single-photon sources, long-life LEDs, and single-molecule biolabels. At the single-nanocrystal level, random fluctuations in the QD photoluminescence occur, a phenomenon termed blinking. There are two competing models to explain this blinking: Auger recombination and surface trap induced recombination. Here we use lifetime scaling on core-shell chalcogenide NCs to demonstrate that both types of blinking occur in the same QDs. We prove that Auger-blinking can yield single-exponential on/off times in contrast to earlier work. The surface passivation strategy determines which blinking mechanism dominates. This study summarizes earlier studies on blinking mechanisms and provides some clues that stable single QDs can be engineered for optoelectronic applications.

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Yuan G. et al. Two Mechanisms Determine Quantum Dot Blinking. // ACS Nano. 2018. Vol. 12. No. 4. pp. 3397-3405.
GOST all authors (up to 50) Copy
Yuan G., Gómez D. E., Kirkwood N., Boldt K., Mulvaney P. Two Mechanisms Determine Quantum Dot Blinking. // ACS Nano. 2018. Vol. 12. No. 4. pp. 3397-3405.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acsnano.7b09052
UR - https://doi.org/10.1021/acsnano.7b09052
TI - Two Mechanisms Determine Quantum Dot Blinking.
T2 - ACS Nano
AU - Yuan, Gangcheng
AU - Gómez, Daniel E.
AU - Boldt, Klaus
AU - Mulvaney, Paul
AU - Kirkwood, Nicholas
PY - 2018
DA - 2018/03/26 00:00:00
PB - American Chemical Society (ACS)
SP - 3397-3405
IS - 4
VL - 12
SN - 1936-0851
SN - 1936-086X
ER -
BibTex |
Cite this
BibTex Copy
@article{2018_Yuan,
author = {Gangcheng Yuan and Daniel E. Gómez and Klaus Boldt and Paul Mulvaney and Nicholas Kirkwood},
title = {Two Mechanisms Determine Quantum Dot Blinking.},
journal = {ACS Nano},
year = {2018},
volume = {12},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/acsnano.7b09052},
number = {4},
pages = {3397--3405},
doi = {10.1021/acsnano.7b09052}
}
MLA
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MLA Copy
Yuan, Gangcheng, et al. “Two Mechanisms Determine Quantum Dot Blinking..” ACS Nano, vol. 12, no. 4, Mar. 2018, pp. 3397-3405. https://doi.org/10.1021/acsnano.7b09052.
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