Dual-source vacuum deposition of pure and mixed halide 2D perovskites: thin film characterization and processing guidelines
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Dual-source vacuum deposition of pure and mixed halide 2D perovskites: thin film characterization and processing guidelines

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Dual-source vacuum deposition of pure and mixed halide 2D perovskites: thin film characterization and processing guidelines

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La Placa, Maria-Grazia; Guo, Dengyang; Gil Escrig, Lidón; Palazón Huet, Francisco; Sessolo, Michele; Bolink, Henk Perfil
This document is a artículoDate2020
The dual-source vacuum deposition of 2D perovskite films of the type PEA2PbX4, (PEA = phenethylammonium and X = I−, Br−, or a combination of both) is presented. Low-temperature deposited 2D perovskite films showed high crystallinity with the expected trend of bandgap as a function of halide type and concentration. Importantly, we observed an unavoidable halide cross-contamination among different deposition runs, as well as a strong dependence of the material quality on the type of halide precursors used. These findings should be taken into account in the development of vacuum processing for low-dimensional mixed halide perovskites.

    La Placa, Maria-Grazia Guo, Dengyang Gil Escrig, Lidón Palazón Huet, Francisco Sessolo, Michele Bolink, Henk 2020 Dual-source vacuum deposition of pure and mixed halide 2D perovskites: thin film characterization and processing guidelines Journal Of Materials Chemistry C 8 1902 1908
https://doi.org/10.1039/C9TC06662D

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