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Science, volume 278, issue 5346, pages 2114-2117

Quantum-Confined Stark Effect in Single CdSe Nanocrystallite Quantum Dots

Publication typeJournal Article
Publication date1997-12-19
Journal: Science
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor56.9
ISSN00368075, 10959203
Multidisciplinary
Abstract

The quantum-confined Stark effect in single cadmium selenide (CdSe) nanocrystallite quantum dots was studied. The electric field dependence of the single-dot spectrum is characterized by a highly polarizable excited state (∼10 5 cubic angstroms, compared to typical molecular values of order 10 to 100 cubic angstroms), in the presence of randomly oriented local electric fields that change over time. These local fields result in spontaneous spectral diffusion and contribute to ensemble inhomogeneous broadening. Stark shifts of the lowest excited state more than two orders of magnitude larger than the linewidth were observed, suggesting the potential use of these dots in electro-optic modulation devices.

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GOST |
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GOST Copy
Empedocles S. A., Bawendi M. G. Quantum-Confined Stark Effect in Single CdSe Nanocrystallite Quantum Dots // Science. 1997. Vol. 278. No. 5346. pp. 2114-2117.
GOST all authors (up to 50) Copy
Empedocles S. A., Bawendi M. G. Quantum-Confined Stark Effect in Single CdSe Nanocrystallite Quantum Dots // Science. 1997. Vol. 278. No. 5346. pp. 2114-2117.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1126/science.278.5346.2114
UR - https://doi.org/10.1126/science.278.5346.2114
TI - Quantum-Confined Stark Effect in Single CdSe Nanocrystallite Quantum Dots
T2 - Science
AU - Empedocles, S. A.
AU - Bawendi, M G
PY - 1997
DA - 1997/12/19 00:00:00
PB - American Association for the Advancement of Science (AAAS)
SP - 2114-2117
IS - 5346
VL - 278
SN - 0036-8075
SN - 1095-9203
ER -
BibTex |
Cite this
BibTex Copy
@article{1997_Empedocles,
author = {S. A. Empedocles and M G Bawendi},
title = {Quantum-Confined Stark Effect in Single CdSe Nanocrystallite Quantum Dots},
journal = {Science},
year = {1997},
volume = {278},
publisher = {American Association for the Advancement of Science (AAAS)},
month = {dec},
url = {https://doi.org/10.1126/science.278.5346.2114},
number = {5346},
pages = {2114--2117},
doi = {10.1126/science.278.5346.2114}
}
MLA
Cite this
MLA Copy
Empedocles, S. A., and M G Bawendi. “Quantum-Confined Stark Effect in Single CdSe Nanocrystallite Quantum Dots.” Science, vol. 278, no. 5346, Dec. 1997, pp. 2114-2117. https://doi.org/10.1126/science.278.5346.2114.
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