Indium selenide is widely used in the field of optoelectronics due to its excellent semiconductor properties. It is a key material in the production of solar cells, where it helps convert sunlight into electricity efficiently. Additionally, it is utilized in the fabrication of photodetectors and light-emitting diodes (LEDs), enhancing their performance and sensitivity. Its application extends to thin-film transistors, which are essential components in modern electronic displays and circuits. The compound also plays a role in thermoelectric devices, where it aids in converting heat into electrical energy. Its versatility makes it a valuable material in advancing renewable energy and electronic technologies.