Semiconductors, volume 32, issue 11, pages 1229-1233
Effect of size dispersion on the optical absorption of an ensemble of semiconductor quantum dots
3
Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
|
Publication type: Journal Article
Publication date: 1998-11-01
Journal:
Semiconductors
Q4
Q4
SJR: 0.173
CiteScore: 1.5
Impact factor: 0.6
ISSN: 10637826, 10906479, 17267315, 09412751
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Abstract
The linear optical absorption of an ensemble of semiconductor quantum dots randomly positioned in an insulating matrix is studied theoretically and experimentally for the CdTe/glass system. The calculation of the effective dielectric function of the system, whose imaginary part determines the absorption, is based on a modified Maxwell-Garnett formalism using a diagram technique to calculate the average renormalized polarizability of spherical quantum dots. This approach takes into account both the fluctuations of the polarization interaction due to the random positions of the spheres and their size dispersion. A comparison of the theoretical and experimental spectra permits determination of the mean quantum dot size and concentration. The dependence of these parameters on the postgrowth annealing time of the samples is not consistent with the existing theories on the spinodal decomposition of solid solutions.
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Vasilevskii M. I. et al. Effect of size dispersion on the optical absorption of an ensemble of semiconductor quantum dots // Semiconductors. 1998. Vol. 32. No. 11. pp. 1229-1233.
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Vasilevskii M. I., Akinkina E. I., de Paula A. M., Anda E. Effect of size dispersion on the optical absorption of an ensemble of semiconductor quantum dots // Semiconductors. 1998. Vol. 32. No. 11. pp. 1229-1233.
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TY - JOUR
DO - 10.1134/1.1187596
UR - https://doi.org/10.1134/1.1187596
TI - Effect of size dispersion on the optical absorption of an ensemble of semiconductor quantum dots
T2 - Semiconductors
AU - Vasilevskii, M I
AU - Akinkina, E I
AU - de Paula, A. M.
AU - Anda, E.V.
PY - 1998
DA - 1998/11/01
PB - Pleiades Publishing
SP - 1229-1233
IS - 11
VL - 32
SN - 1063-7826
SN - 1090-6479
SN - 1726-7315
SN - 0941-2751
ER -
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BibTex (up to 50 authors)
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@article{1998_Vasilevskii,
author = {M I Vasilevskii and E I Akinkina and A. M. de Paula and E.V. Anda},
title = {Effect of size dispersion on the optical absorption of an ensemble of semiconductor quantum dots},
journal = {Semiconductors},
year = {1998},
volume = {32},
publisher = {Pleiades Publishing},
month = {nov},
url = {https://doi.org/10.1134/1.1187596},
number = {11},
pages = {1229--1233},
doi = {10.1134/1.1187596}
}
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Vasilevskii, M. I., et al. “Effect of size dispersion on the optical absorption of an ensemble of semiconductor quantum dots.” Semiconductors, vol. 32, no. 11, Nov. 1998, pp. 1229-1233. https://doi.org/10.1134/1.1187596.