The primary co mm ercial application of indium is in coatings for the flat panel display industry.
Indium is also a crucial raw material for solar energy technology. Copper Indium Gallium Selenide (CIGS) is a new semi- conductor material comprising of copper, indium, gallium, and . Its main use is for high- efficiency photovoltaic cells (CIGS cells) , in the form of thin- film photovoltaic. The thin- film photovoltaic has several advantages over traditional solar energy technologies. It is lightweight, can be applied on uneven surfaces and can be rolled up when not in use.