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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2019, Volume 109, Issue 7, Pages 466–472
DOI: https://doi.org/10.1134/S0370274X19070063 (Mi jetpl5865) 		 
This article is cited in 10 scientific papers (total in 10 papers)

CONDENSED MATTER

Saturation of exciton absorption in CdSe/CdS nanoplatelets under transient excitation conditions

A. M. Smirnovab, A. D. Golinskayaab, E. V. Zharkovaa, M. V. Kozlovaa, B. M. Saidzhonovc, R. B. Vasil'evc, V. S. Dneprovskiia

a Faculty of Physics, Moscow State University, Moscow, Russia
b Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
c Faculty of Materials Science, Moscow State University, Moscow, Russia
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DOI: https://doi.org/10.1134/S0370274X19070063
Abstract: Nonlinear absorption of light by colloidal CdSe nanoplatelets with a CdS shell is investigated under the conditions of transient single-photon generation of excitons. By changing the shell thickness, it is possible to implement either resonant excitation of light-hole and heavy-hole excitons or nonresonant excitation. The saturation of absorption by colloidal solutions of nanoplatelets is observed and attributed to the effect of exciton phase space filling. The difference between the saturation intensities for CdSe nanoplatelets with different CdS shell thicknesses is explained by the details of exciton generation and relaxation processes. An increase in absorption observed at the excitation intensity significantly exceeding the saturation intensity is explained by the processes of exciton-exciton interaction and energy exchange between heavy- and light-hole excitons.
Funding agency Grant number
Russian Science Foundation 18-72-00075
Received: 30.01.2019
Revised: 30.01.2019
Accepted: 06.02.2019
English version:
Journal of Experimental and Theoretical Physics Letters, 2019, Volume 109, Issue 7, Pages 454–459
DOI: https://doi.org/10.1134/S0021364019070142
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. M. Smirnov, A. D. Golinskaya, E. V. Zharkova, M. V. Kozlova, B. M. Saidzhonov, R. B. Vasil'ev, V. S. Dneprovskii, “Saturation of exciton absorption in CdSe/CdS nanoplatelets under transient excitation conditions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 109:7 (2019), 466–472; JETP Letters, 109:7 (2019), 454–459
Citation in format AMSBIB
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\vol 109
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    • This publication is cited in the following 10 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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