Used as a precursor in the synthesis of selenium-containing compounds for semiconductor materials and electronic devices. Employed in electroplating processes to produce selenium coatings with photoconductive properties. Applied in the manufacturing of specialty glasses and pigments where selenium imparts specific optical characteristics. Utilized in some chemical synthesis reactions as a source of elemental selenium, particularly in organic transformations involving selenylation. Also used in research settings for the development of nanomaterials and catalysts.