Physical Review B, volume 63, issue 20, publication number 205316

Blinking statistics in single semiconductor nanocrystal quantum dots

Publication typeJournal Article
Publication date2001-05-02
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor3.7
ISSN24699950, 24699969, 10980121, 1550235X
Abstract
Statistical studies of fluorescence intermittency in single CdSe nanocrystal quantum dots (QD's) reveal a temperature-independent power-law distribution in the histogram of on and off times---the time periods before the QD turns from emitting to nonemitting (bright to dark) and vice versa. Every QD shows a similar power-law behavior for the off-time distribution regardless of temperature, excitation intensity, surface morphology or size. We propose a dynamic model of tunneling between core and trapped charged states to explain the universal power-law statistics of the blinking events observed. The on-time probability distributions show evidence of both a tunneling mechanism similar to the off-time statistics and a secondary, photoinduced process that leads to a truncation of the power law. The same blinking statistics are also observed for single CdTe nanocrystal QD's.

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GOST Copy
Shimizu K. T. et al. Blinking statistics in single semiconductor nanocrystal quantum dots // Physical Review B. 2001. Vol. 63. No. 20. 205316
GOST all authors (up to 50) Copy
Shimizu K. T., Neuhauser R. G., Leatherdale C. A., Empedocles S. A., Woo W. K., Bawendi M. G., Bawendi M. G. Blinking statistics in single semiconductor nanocrystal quantum dots // Physical Review B. 2001. Vol. 63. No. 20. 205316
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1103/PhysRevB.63.205316
UR - https://doi.org/10.1103/PhysRevB.63.205316
TI - Blinking statistics in single semiconductor nanocrystal quantum dots
T2 - Physical Review B
AU - Shimizu, K T
AU - Neuhauser, R. G.
AU - Leatherdale, C. A.
AU - Empedocles, S. A.
AU - Bawendi, M G
AU - Woo, W. K.
AU - Bawendi, Moungi G.
PY - 2001
DA - 2001/05/02 00:00:00
PB - American Physical Society (APS)
IS - 20
VL - 63
SN - 2469-9950
SN - 2469-9969
SN - 1098-0121
SN - 1550-235X
ER -
BibTex
Cite this
BibTex Copy
@article{2001_Shimizu,
author = {K T Shimizu and R. G. Neuhauser and C. A. Leatherdale and S. A. Empedocles and M G Bawendi and W. K. Woo and Moungi G. Bawendi},
title = {Blinking statistics in single semiconductor nanocrystal quantum dots},
journal = {Physical Review B},
year = {2001},
volume = {63},
publisher = {American Physical Society (APS)},
month = {may},
url = {https://doi.org/10.1103/PhysRevB.63.205316},
number = {20},
doi = {10.1103/PhysRevB.63.205316}
}
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