This article is cited in 1 paper

Optical materials

Photoactive Cu-Containing ZnO–ZnAl$_2$O$_4$ nanocomposites

A. A. Tinku^a, A. A. Shelemanov^a, S. K. Evstropiev^abc, N. V. Nikonorov^a, A. V. Karavaeva^d, V. M. Kiselev<sup>c

a</sup> St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^b State Technological Institute of St. Petersburg (Technical University), 190013 St. Petersburg, Russia
^c S. I. Vavilov State Optical Institute, 192171 St. Petersburg, Russia
^d St. Petersburg State Chemical Pharmaceutical Academy, 197022 St. Petersburg, Russia

Abstract: Photoactive Cu-containing ZnO-ZnZnAl$_2$O$_3$ nanocomposites were synthesized by the polymer-salt method. To study the structure and properties of materials, the methods of luminescent spectroscopy and X-ray phase analysis were used. It has been shown that the resulting nanocomposites are capable of photogeneration of singlet oxygen under the action of UV and blue light. The synthesized materials consist of nanosized hexagonal ZnO crystals and cubic ZnZnAl$_2$O$_4$ crystals doped with Cu. The study of luminescent properties showed that nanocomposites can be used as down-converters of light that convert radiation from the UV-C range to UV-A and the visible spectral range.

Keywords: singlet oxygen, nanoparticle, luminescence, ZnO, ZnAl$_2$O$_4$.

Received: 15.02.2022
Revised: 05.07.2022
Accepted: 15.07.2022

DOI: 10.21883/OS.2022.10.53628.3275-22

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