Perovskite precursor solutions, perovskite thin films, perovskite batteries and power consumption devices

Abstract

The present application provides a perovskite precursor solution, a perovskite thin film, a perovskite battery, and a power consumption device, the perovskite precursor solution comprising a perovskite precursor material, a solvent, and an additive, the additive containing a weakly reducing group in its structure that is reducible to a zero-valent anion corresponding to a monovalent anion of the perovskite-type metal halide in the solution and inactive to a divalent cation of the perovskite-type metal halide, the additive being a hydrohalide salt.

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