This article is cited in 4 papers

Communications

Effect of the heat treatment of CH₃NH₃PbI₃ perovskite on its electrical and photoelectric properties

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

a</sup> Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russian Federation
^b Department of Physics, M.V. Lomonosov Moscow State University, Moscow, Russian Federation
^c A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russian Federation

Abstract: The effect of the annealing of CH₃NH₃PbI₃ perovskite on its electrical, photoelectric and optical properties has been estimated. The annealing leads to a two-phase structure consisting of perovskite and lead iodide, whose relative concentrations depend on the annealing temperature. The formation of a PbI₂ phase in a perovskite film upon heating leads to a decrease in the conductivity and photoconductivity of two-phase material, which contradicts the assumption of a decrease in recombination associated with PbI₂, obtained by measuring the parameters of a solar cell.

Keywords: perovskites, temperature annealing, photoconductivity, activation energy, spectra, decomposition, degradation.

Language: English

DOI: 10.1016/j.mencom.2021.07.010

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