Special Section on Optics, Spectroscopy, and Nanophotonics of Quantum Dots

Thermal modification of optical properties of silicate nanocomposites based on cadmium sulfide quantum dots

[+] Author Affiliations
Alexander Sergeev, Sergey Voznesenskiy, Nikita Evgenov, Anna Galkina

Institute of Automation and Control Processes, Far Eastern Branch of Russian Academy of Sciences, 5, Radio Street, Vladivostok 690041, Russia

Irina Postnova

Far Eastern Federal University, 8, Sukhanova Street, Vladivostok 690950, Russia

J. Nanophoton. 10(3), 033510 (Apr 05, 2016). doi:10.1117/1.JNP.10.033510
History: Received December 22, 2015; Accepted March 3, 2016
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Abstract.  Here, we report the studies of thermal treatment effect on the structural and optical properties of nanocomposites based on cadmium sulfide quantum dots embedded in a silicate matrix. An explanation of the mechanism of reversible photoinduced absorption of the nanocomposite has been given. It is found that heating at 180°C results in significant changing of nanocomposite absorption and luminescence spectra caused by structural changes of quantum dots. It is found that photoinduced optical absorption of the nanocomposite is caused by amorphous-structured cadmium sulfide quantum dots.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Alexander Sergeev ; Sergey Voznesenskiy ; Nikita Evgenov ; Anna Galkina and Irina Postnova
"Thermal modification of optical properties of silicate nanocomposites based on cadmium sulfide quantum dots", J. Nanophoton. 10(3), 033510 (Apr 05, 2016). ; http://dx.doi.org/10.1117/1.JNP.10.033510


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