Indium telluride (In₂Te₃) is an inorganic compound belonging to the III-VI group of semiconductors. It crystallizes in a cubic structure and is known for its narrow bandgap, which is tunable based on its stoichiometry and phase. This material exhibits interesting electronic and optical properties, including high carrier mobility and a strong photoelectric effect. Its primary applications are in advanced material science and electronics. In₂Te₃ is a promising candidate for thermoelectric devices due to its relatively high thermoelectric figure of merit (ZT) at elevated temperatures, converting waste heat into electricity. Furthermore, its narrow bandgap and photoconductive properties make it suitable for infrared detectors and optoelectronic applications. Recent research also explores its potential as an electrode or buffer layer in thin-film solar cells and as an anode material for lithium-ion and sodium-ion batteries, owing to its high theoretical capacity. As a compound semiconductor, it is typically synthesized via solid-state reactions, chemical vapor transport, or molecular beam epitaxy for high-purity films. Handling requires standard precautions for inorganic powders, and it should be stored in a dry, inert atmosphere to prevent oxidation.