Optically Induced Charge Exchange in ZnO-Based Composite Structures with Embedded CsPbBr3 Nanocrystals
- Autores: Drozdov K.1, Krylov I.1, Chizhov A.2, Rumyantseva M.2, Ryabova L.2, Khokhlov D.1
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Afiliações:
- Department of Physics Moscow State University
- Department of Chemistry Moscow State University
- Edição: Volume 53, Nº 6 (2019)
- Páginas: 814-818
- Seção: Microcrystalline, Nanocrystalline, Porous, and Composite Semiconductors
- URL: https://journals.rcsi.science/1063-7826/article/view/206353
- DOI: https://doi.org/10.1134/S1063782619060058
- ID: 206353
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Resumo
The introduction of CsPbBr3 nanocrystals into a porous ZnO matrix leads to the appearance of a photoconductivity response in the visible spectral range. Measurement of the spectral dependences of the absorption, photoluminescence (PL), and photoconductivity showed that the shape and position of the PL peak are associated with defects in CsPbBr3. Analysis of the photoconductivity relaxation kinetics shows the possibility of accelerating the recombination of photoexcited charge carriers by more than an order of magnitude. The mechanisms responsible for this effect are discussed.
Sobre autores
K. Drozdov
Department of Physics Moscow State University
Email: khokhlov@mig.phys.msu.ru
Rússia, Moscow, 119991
I. Krylov
Department of Physics Moscow State University
Email: khokhlov@mig.phys.msu.ru
Rússia, Moscow, 119991
A. Chizhov
Department of Chemistry Moscow State University
Email: khokhlov@mig.phys.msu.ru
Rússia, Moscow, 119991
M. Rumyantseva
Department of Chemistry Moscow State University
Email: khokhlov@mig.phys.msu.ru
Rússia, Moscow, 119991
L. Ryabova
Department of Chemistry Moscow State University
Email: khokhlov@mig.phys.msu.ru
Rússia, Moscow, 119991
D. Khokhlov
Department of Physics Moscow State University
Autor responsável pela correspondência
Email: khokhlov@mig.phys.msu.ru
Rússia, Moscow, 119991