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Semiconductors
Published in: Semiconductors 16/2019

01-12-2019 | QUANTUM WELLS AND QUANTUM DOTS

Differential Absorption Features of CdSe QDs in the Case of Resonant and Nonresonant Excitons Excitation

Authors: A. M. Smirnov, A. D. Golinskaya, E. V. Zharkova, S. S. Bubenov, S. G. Dorofeev, V. S. Dneprovskii

Published in: Semiconductors | Issue 16/2019

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Abstract

Nanosecond differential absorption measurements of spherical CdSe QDs at the quasi-stationary resonant and nonresonant excitation of basic exciton transitions are reported. The significant decrease in absorption and saturation of the basic exciton transition 1Sh3/2–1Se are explained by the state filling effect. The observed blue shift of differential absorption minima with increasing pump intensities was explained by strong exciton–phonon interaction. In addition, the 2Sh3/2–1Se exciton transition bleaching and induced absorption of mixed 1Ph3/2–1Pe and 2Sh1/2–1Se exciton transitions were found.
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Metadata
Title
Differential Absorption Features of CdSe QDs in the Case of Resonant and Nonresonant Excitons Excitation
Authors
A. M. Smirnov
A. D. Golinskaya
E. V. Zharkova
S. S. Bubenov
S. G. Dorofeev
V. S. Dneprovskii
Publication date
01-12-2019
Publisher
Pleiades Publishing
Published in
Semiconductors / Issue 16/2019
Print ISSN: 1063-7826
Electronic ISSN: 1090-6479
DOI
https://doi.org/10.1134/S1063782619120285

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