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Physical Review Letters, volume 78, issue 6, pages 1110-1113

Random Telegraph Signal in the Photoluminescence Intensity of a Single Quantum Dot

Al. L. EFROS 1
M. ROSEN 1
1
 
Nanostructure Optics Section, Naval Research Laboratory, Washington, D.C. 20375
Publication typeJournal Article
Publication date1997-02-10
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor8.6
ISSN00319007, 10797114
General Physics and Astronomy
Abstract
We propose a model in which the time dependence of the photoluminescence intensity of a single nanosize quantum dot under cw excitation conditions shows a sequence of ``on'' and ``off'' periods similar to a random telegraph signal. In our model the off periods are the times when the dot is ionized and the luminescence is quenched by nonradiative Auger recombination. The duration of the on periods depends on the ionization rate of the dot via thermal or Auger autoionization, and depends strongly on excitation intensity. Numerical simulations reproduce the random intermittency recently observed in the photoluminescence intensity of a single CdSe quantum dot.

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GOST |
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GOST Copy
EFROS A. L., ROSEN M. Random Telegraph Signal in the Photoluminescence Intensity of a Single Quantum Dot // Physical Review Letters. 1997. Vol. 78. No. 6. pp. 1110-1113.
GOST all authors (up to 50) Copy
EFROS A. L., ROSEN M. Random Telegraph Signal in the Photoluminescence Intensity of a Single Quantum Dot // Physical Review Letters. 1997. Vol. 78. No. 6. pp. 1110-1113.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1103/PhysRevLett.78.1110
UR - https://doi.org/10.1103/PhysRevLett.78.1110
TI - Random Telegraph Signal in the Photoluminescence Intensity of a Single Quantum Dot
T2 - Physical Review Letters
AU - EFROS, Al. L.
AU - ROSEN, M.
PY - 1997
DA - 1997/02/10 00:00:00
PB - American Physical Society (APS)
SP - 1110-1113
IS - 6
VL - 78
SN - 0031-9007
SN - 1079-7114
ER -
BibTex |
Cite this
BibTex Copy
@article{1997_EFROS,
author = {Al. L. EFROS and M. ROSEN},
title = {Random Telegraph Signal in the Photoluminescence Intensity of a Single Quantum Dot},
journal = {Physical Review Letters},
year = {1997},
volume = {78},
publisher = {American Physical Society (APS)},
month = {feb},
url = {https://doi.org/10.1103/PhysRevLett.78.1110},
number = {6},
pages = {1110--1113},
doi = {10.1103/PhysRevLett.78.1110}
}
MLA
Cite this
MLA Copy
EFROS, Al. L., and M. ROSEN. “Random Telegraph Signal in the Photoluminescence Intensity of a Single Quantum Dot.” Physical Review Letters, vol. 78, no. 6, Feb. 1997, pp. 1110-1113. https://doi.org/10.1103/PhysRevLett.78.1110.
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