InO2

Indium oxide (InO₂) is an n-type semiconductor ceramic compound belonging to the family of transparent conducting oxides (TCOs). It is primarily used in optoelectronic and photovoltaic applications where electrical conductivity combined with optical transparency is required, such as in thin-film coatings for displays, solar cells, and light-emitting devices. InO₂ offers advantages over alternatives like ITO (indium tin oxide) in specific applications due to its simpler binary composition, though it is less commonly commercialized; the material remains important in research and specialized industrial settings for next-generation electronic and photonic devices.