This article is cited in 2 papers

Surface, interfaces, thin films

Features of the temperature dependences of the photoconductivity of organometallic CH$_{3}$NH$_{3}$PbI$_{3}$ perovskite films

D. V. Amasev^a, A. R. Tameev^b, A. G. Kazanskii<sup>c

a</sup> Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Institute of Physical Chemistry and Electro Chemistry, Russian Academy of Sciences, Moscow
^c Lomonosov Moscow State University

Abstract: In this work, the effect of temperature on photoconductivity and its spectral dependence for thin films of metal-organic perovskite CH$_{3}$NH$_{3}$PbI$_{3}$ was studied. Measurements carried out in the temperature region below room temperature revealed specific features of photoconductivity variation with temperature in the phase transition region from the tetragonal to orthorhombic structure (140–170 K). Based on the analysis of the effect of temperature on the spectral dependences of photoconductivity in the region of the phase transition mechanisms are proposed that determine the observed change in photoconductivity

Keywords: perovskites, photoconductivity, phase transition, spectral dependence.

Received: 02.07.2019
Revised: 15.07.2019
Accepted: 15.07.2019

DOI: 10.21883/FTP.2019.12.48615.9202

 English version: Semiconductors, 2019, 53:12, 1597–1602

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