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Preparation and Characterization of Mixed Halide MAPbI(3-x)Cl(x) Perovskite Thin Films by Three-Source Vacuum Deposition
Date
2020-04-01
Author
Babaei, Azin
Soltanpoor, Wiria
Tesa-Serrate, Maria A.
Yerci, Selçuk
Sessolo, Michele
Bolink, Henk J.
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Chloride is extensively used in the preparation of metal halide perovskites such as methylammonium lead iodide (MAPbI(3-x)Cl(x)), but its persistence and role in solution-processed materials has not yet been rationalized. Multiple-source vacuum deposition of perovskites enables a fine control over thin-film stoichiometry and allows the incorporation of chemical species irrespective of their solubility. Herein, the first example of mixed MAPbI(3-x)Cl(x) thin films prepared by three-source vacuum deposition is presented using methylammonium iodide (MAI), PbI2, and PbCl2 as precursors. The optoelectronic properties of the material are evaluated through photovoltaic and electro-/photoluminescent characterizations. Besides the very similar structural and optical properties of MAPbI(3) and MAPbI(3-x)Cl(x), an increased electroluminescence efficiency, longer photoluminescence lifetimes, as well as larger photovoltage, are observed in the presence of chloride, suggesting a reduction of nonradiative charge recombination.
Subject Keywords
Halide perovskites
,
Mixed halide perovskites
,
Solar cells
,
Vacuum deposition
URI
https://hdl.handle.net/11511/31203
Journal
ENERGY TECHNOLOGY
DOI
https://doi.org/10.1002/ente.201900784
Collections
Graduate School of Natural and Applied Sciences, Article
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A. Babaei, W. Soltanpoor, M. A. Tesa-Serrate, S. Yerci, M. Sessolo, and H. J. Bolink, “Preparation and Characterization of Mixed Halide MAPbI(3-x)Cl(x) Perovskite Thin Films by Three-Source Vacuum Deposition,”
ENERGY TECHNOLOGY
, pp. 0–0, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31203.