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Indium Doping of Lead-Free Perovskite Cs2SnI6.


ABSTRACT: Structure and properties of an inorganic perovskite Cs2SnI6 demonstrated its potential as a light-harvester or electron-hole transport material; however, its optoelectronic properties are poorer than those of lead-based perovskites. Here, we report the way of light tuning of absorption and transport properties of cesium iodostannate(IV) Cs2SnI6 via partial heterovalent substitution of tin for indium. Light absorption and optical bandgaps of materials have been investigated by UV-vis absorption and photoluminescent spectroscopies. Low-temperature electron paramagnetic resonance spectroscopy was used to study the kind of paramagnetic centers in materials.

SUBMITTER: Umedov ST 

PROVIDER: S-EPMC7417766 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Indium Doping of Lead-Free Perovskite Cs<sub>2</sub>SnI<sub>6</sub>.

Umedov Shodruz T ST   Grigorieva Anastasia V AV   Lepnev Leonid S LS   Knotko Alexander V AV   Nakabayashi Koji K   Ohkoshi Shin-Ichi SI   Shevelkov Andrei V AV  

Frontiers in chemistry 20200804


Structure and properties of an inorganic perovskite Cs<sub>2</sub>SnI<sub>6</sub> demonstrated its potential as a light-harvester or electron-hole transport material; however, its optoelectronic properties are poorer than those of lead-based perovskites. Here, we report the way of light tuning of absorption and transport properties of cesium iodostannate(IV) Cs<sub>2</sub>SnI<sub>6</sub> via partial heterovalent substitution of tin for indium. Light absorption and optical bandgaps of materials h  ...[more]

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