Chalcohalide nanocrystals have attracted signifi cant attention as promising candidates for the fabrication of novel electronic

and optoelectronic devices. Chalcohalide exhibit high charge carrier mobility, defect tolerance, strong absorption characteristics,

and tunable optical and electrical properties owing to their unique electronic confi gurations and diverse compositions.

Specifi cally, chalcohalide nanocrystals synthesized via solution-phase enable tunability of uniform size, shape, and

composition, and off er colloidal stability when dispersed in various solvents. Solution-processable chalcohalide nanocrystals

off er a simple and cost-eff ective route for device fabrication while preserving their unique size and shape-dependent properties.

This review represents the recent advances in the solution-phase synthesis of metal chalcohalide nanocrystals and

their applications in solution-processed device fabrication. This review sequentially presents synthesis methods, including

solvothermal, hot-injection, and heat-up methods, followed by a detailed description of the optical and structural properties

of the nanocrystals. Furthermore, a concise overview of optoelectronic device applications, such as photodetectors and solar

cells, which utilize chalcohalide nanocrystals, is provided.