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Single-Source Vacuum Deposition of Mechanosynthesized Inorganic Halide Perovskites
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Single-Source Vacuum Deposition of Mechanosynthesized Inorganic Halide Perovskites
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| El Ajjouri, Yousra; Palazón Huet, Francisco; Sessolo, Michele; Bolink, Henk | |||
| Aquest document és un/a article, creat/da en: 2018 | |||
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| Fully inorganic cesium lead halide perovskite thin films were prepared by an easy, fast and dry process based on single-source vacuum deposition. We investigated the structural and optical characteristics of the so-formed films as a function of chemical composition (chloride, bromide and iodide films were formed), post-deposition thermal annealing, as well as previous mechanosynthesis of perovskite powders. We found out that the CsPbX3 perovskite was preferentially formed for the smaller halides and favored by previous ball-milling of CsX and PbX2 precursors. When bigger halides were used and/or CsX and PbX2 precursors were simply mixed without previous mechanosynthesis, PbX2-rich compounds such as CsPb2X5 were preferentially formed in the thin films. | |||
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