Cs2TiCl6

Cs₂TiCl₆ is a halide perovskite compound consisting of cesium, titanium, and chlorine—a material class that has emerged primarily in photovoltaic and optoelectronic research rather than traditional structural engineering. This compound is notable as a lead-free alternative within the halide perovskite family, developed to address toxicity concerns in conventional metal halide perovskites while maintaining semiconductor functionality. The material remains largely in the research phase, with potential applications in solar cells, light-emitting devices, and other semiconductor technologies, though its stability and device performance characteristics differ from both lead-based perovskites and other lead-free variants, making it an active area of materials investigation rather than an established industrial material.