Methods for Making Low Bandgap Perovskites

Kai Zhu (Inventor), Jinhui Tong (Inventor), Yuanyuan Zhou (Inventor), Nitin Padture (Inventor), Jue Gong (Inventor)

Research output: Patent

Abstract

The present disclosure relates to a composition that includes a perovskite having a stoichiometry comprising A.sub.1-xFA.sub.xSn.sub.1-yB.sub.y(I.sub.1-zX.sub.z).sub.3, where A is a first cation, B is a second cation, X is a halide, and 0.5 x 0.9, 0.5 y 0.9, and 0 z 1. In some embodiments of the present disclosure, A may include at least one of cesium, guanidinium, and/or methylammonium. In some embodiments of the present disclosure, X may include at least one of bromide and/or chloride. In some embodiments of the present disclosure, z may be equal to zero.
Original languageAmerican English
Patent numberU.S. 11,964,995 B2
Filing date23/04/24
StatePublished - 2024

NREL Publication Number

  • NREL/PT-5900-89811

Keywords

  • bandgap
  • biaxial residual stress level
  • stoichiometry

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