Solution-based synthesis of CsSnI₃ thin films

摘要

This invention discloses a solution-based synthesis of cesium tin tri-iodide (CsSnI₃) film. More specifically, the invention is directed to a solution-based spray-coating synthesis of cesium tin tri-iodide (CsSnI₃) thin films. This invention is also directed to effective and inexpensive methods to synthesize the thin CsSnI₃ films on large-area substrates such as glass, ceramics, glass, ceramic, silicon, and metal foils. CsSnI₃ films are ideally suited for a wide range of applications such as light emitting and photovoltaic devices.