K. A. Drozdov, I. V. Krylov, A. S. Chizhov, M. N. Rumyantseva, L. I. Ryabova, D. R. Khokhlov, “Optically induced charge exchange in composite structures based on ZnO with embedded CsPbBr<nobr>$_{3}$</nobr> nanocrystals”, Fizika i Tekhnika Poluprovodnikov, 2019, Volume 53, Issue 6,Pages <nobr>824

This article is cited in 1 paper

Micro- and nanocrystalline, porous, composite semiconductors

Optically induced charge exchange in composite structures based on ZnO with embedded CsPbBr$_{3}$ nanocrystals

K. A. Drozdov^a, I. V. Krylov^a, A. S. Chizhov^b, M. N. Rumyantseva^b, L. I. Ryabova^b, D. R. Khokhlov^a

^a Faculty of Physics, Lomonosov Moscow State University
^b Lomonosov Moscow State University, Faculty of Chemistry

Abstract: The introduction of CsPbBr$_{3}$ nanocrystals into the ZnO porous matrix leads to the appearance of a positive photoconductivity response in the visible spectral range. Measurement of the spectral dependences of absorption, photoluminescence and photoconductivity showed that the shape and position of the photoluminescence peak are associated with defects in CsPbBr$_{3}$. Analysis of the kinetics of photoconductivity relaxation shows the possibility of accelerating the process of recombination of photoexcited charge carriers by more than an order of magnitude. The mechanisms responsible for the effect are discussed.

Received: 10.12.2018
Revised: 18.12.2018
Accepted: 18.12.2018

DOI: 10.21883/FTP.2019.06.47736.9042