Used in the synthesis of selenium-containing compounds for semiconductor applications. Acts as a precursor in the production of advanced materials for optoelectronics and photovoltaics. Employed in research settings for the development of new metal selenides with potential in catalysis and solid-state chemistry. Also investigated for use in specialized ceramic materials requiring high thermal stability and electrical conductivity. It is moisture-sensitive and can release toxic hydrogen selenide gas upon contact with water, requiring careful handling.