Used in phase-change memory devices due to its reversible transition between amorphous and crystalline states, enabling data storage applications. Employed in infrared optics, including lenses and windows, because of its high transmission in the infrared region. Serves as a semiconductor material in electronic components, particularly in chalcogenide-based thin-film transistors. Investigated for use in solid-state batteries as an active material in lithium-ion conducting electrolytes. Also utilized in photovoltaic cells for its light-absorbing properties in thin-film solar technology.