APPLICATION OF LUMINESCENCE AND ABSORPTION SPECTRA TO CONTROL THE FORMATION OF A HETEROJUNCTION IN NANOSTRUCTURED RUTILE FILMS SENSITIZED BY CDS QUANTUM DOTS

Keywords: quantum dots, luminescence and absorption spectroscopy, cadmium sulfi de, titanium dioxide, heterojunction.

Abstract

The effect of photon processing (FO) on the formation of a heterojunction in the TiO2/QD’sCdS interface obtained by applying separately synthesized CdS quantum dots to the TiO2 film in the rutile phase has been studied. The changes of luminescence spectra and absorption of the investigated samples after this treatment discovered. It is shown that the separation of charge carriers occurs only after irradiation of samples with a powerful light pulse of a xenon lamp.

 

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Author Biographies

Sergei B. Kuschev, Voronezh State Technical University 14, Moskovskii pr., 394026 Voronezh, Russian Federation

Dr. Sci. (Phys.–Math), Full Professor, Voronezh State Technical University, Voronezh, Russian Federation; e-mail: kushev_sb@mail.ru. ORCID: 0000-0003-1263-1806.

Liana Yu. Leonova, Voronezh State University, Voronezh, Russian Federation

Cand. Sci. (Phys.–Math), Voronezh State University, Voronezh, Russian Federation;
e-mail: liana.leonova@mail.ru. ORCID: 0000-0003-4171-4176.

Anatoly N. Latyshev, Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation

Dr. Sci. (Phys.–Math), Full Professor, Department of Optics and Spectroscopy, Voronezh State University, Voronezh, Russian Federation; e-mail: latyshev@phys.vsu.ru. ORCID: 0000-0002-7271-0795.

Oleg V. Ovchinnikov, Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation

Dr. Sci. (Phys. - Math.), Professor, Head of the Department of Optics and Spectroscopy,
Voronezh State University, Voronezh, Russian Federation; e-mail: Ovchinnikov_O_V@rambler.
ru. ORCID: 0000-0001-6032-9295.

Elena V. Popova, Voronezh State University 1, Universitetskaya pl., 394018 Voronezh, Russian Federation

Engineer, Voronezh State University, Voronezh, Russian Federation; e-mail: elina.vacheslavovna@gmail.com. ORCID: 0000-0002-7565-2535.


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Published
2019-09-26
How to Cite
Kuschev, S., Leonova, L., Latyshev, A., Ovchinnikov, O., & Popova, E. (2019). APPLICATION OF LUMINESCENCE AND ABSORPTION SPECTRA TO CONTROL THE FORMATION OF A HETEROJUNCTION IN NANOSTRUCTURED RUTILE FILMS SENSITIZED BY CDS QUANTUM DOTS. Kondensirovannye Sredy I Mezhfaznye Granitsy = Condensed Matter and Interphases, 21(3), 399-405. https://doi.org/https://doi.org/10.17308/kcmf.2019.21/1147
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