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DOE OSTI · 1694740

Materials Data on CsPbI3 by Materials Project

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Abstract

CsPbI3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Cs1+ is bonded in a 8-coordinate geometry to eight I1- atoms. There are a spread of Cs–I bond distances ranging from 3.96–4.49 Å. Pb2+ is bonded to six I1- atoms to form corner-sharing PbI6 octahedra. The corner-sharing octahedra tilt angles range from 16–24°. There are two shorter (3.21 Å) and four longer (3.22 Å) Pb–I bond lengths. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted see-saw-like geometry to two equivalent Cs1+ and two equivalent Pb2+ atoms. In the second I1- site, I1- is bonded in a 5-coordinate geometry to three equivalent Cs1+ and two equivalent Pb2+ atoms.

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36 MATERIALS SCIENCEcrystal structureCs-I-PbCsPbI3

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2020-04-30. Materials Data on CsPbI3 by Materials Project. https://doi.org/10.17188/1694740

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