Room-temperature, solid-state synthesis of high-quality CCI thin films

https://phys.org/news/2023-05-room-temperature-solid-state-synthesis-high-quality-cci.html

"cesium copper iodide... deposited thin films of CuI and CsI onto a silica substrate evaporation... room temperature form transparent and highly smooth films with high optical transmittance 92%... depositing CuI over CsI yellow light-emitting thin CsCu2I3... controlled adjusting thickness... depositing through shadow mask... central blue light-emitting Cs3Cu2I5 region bordered by a yellow light-emitting CsCu2I3 region... high-quality thin film devices with ideal optical properties for advanced stacking applications"