Used in optoelectronic devices due to its semiconductor properties, particularly in infrared detectors and light-emitting diodes (LEDs). It serves as a key material in thin-film solar cells, often paired with other compounds like cadmium sulfide to form efficient photovoltaic junctions. Also employed in electro-optic modulators for high-speed optical communication systems. Its ability to emit and detect infrared light makes it suitable for sensors and imaging applications. Additionally, zinc telluride is studied in radiation detection and as a component in certain types of laser crystals.