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 in efficiently converting sunlight into electricity. The compound is also utilized in the fabrication of photodetectors, which are essential components in various imaging and sensing technologies. Additionally, indium selenide finds applications in the development of thin-film transistors, which are crucial for flexible and high-performance electronic devices. Its ability to operate at high temperatures makes it suitable for use in thermoelectric devices, where it can convert heat into electrical energy. Furthermore, indium selenide is being explored for use in next-generation batteries, particularly in solid-state batteries, due to its ionic conductivity and stability.