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Indium Compounds
   Aluminium gallium indium phosphide
   Copper indium gallium selenide (CIGS)
   Indium(III) arsenide
   Indium(III) antimonide
   Indium tin oxide
Aluminium gallium indium phosphide AlGaInP
A semiconductor material used in the manufacture of light-emitting diodes of high-brightness red, orange, green, and yellow colour, to form the heterostructure emitting light. It is also used to make diode lasers.
Copper indium gallium selenide (CIGS) Cu(Ga,In)Se2
CIGS is a new semiconductor used mainly in photovoltaic cells (CIGS cells).
CIGS solar cells are not as efficient as crystalline silicon solar cells, but they are expected to be substantially cheaper. CIGS can be printed directly onto molybdenum coated glass sheets. Solar cells made from crystalline silicon are made of slices of solid silicon and require therefore more expensive semiconductor material.
Indium(III) arsenide InAs
Used for construction of infrared detectors and diode lasers.
Indium(III) antimonide InSb
A narrow gap semiconductor material used in infrared detectors, including thermal imaging cameras, FLIR (forward looking infra-red) systems, infrared homing missile guidance systems, and in infrared astronomy.
Indium tin oxide mixture of In2O3 and SnO2
Mainly used to make transparent conductive coatings for liquid crystal displays, flat panel displays, plasma displays, touch panels, electronic ink applications, organic light-emitting diodes, and solar cells, and antistatic coatings and EMI shieldings.
ITO is also used for various optical coatings, most notably infrared-reflecting coatings (hot mirrors) for architectural, automotive, and sodium vapour lamp glasses.