Indium Oxide (In2O3)
Indium oxide (also known as indium sesquioxide, or In2O3) is a yellow colored powder. It is a stable ceramic-like material that is insoluble in water. Indium oxide is an n-type semiconductor and thus can be used as a resistive element in integrated circuits. It also is used to form heterojunctions with materials like p-InP, n-GaAs, n-Si, and other semiconductors.
Other applications include glass (as a color additive), alkaline batteries (to suppress gas formation), and high current electrical switches and contacts (as an anti-arcing additive).
Indium oxide can be doped with tin dioxide to form indium tin oxide (ITO). Please see here for more information on this important transparent conductive oxide (TCO) material.
Indium oxide is available in four forms:
- Type A (crystalline)
- Type B (fine, amorphous)
- Type T (recommended for sintered sputter target applications)
- High BET oxide (similar to Type T, but with a higher BET value)
Related Markets and Applications
Top Indium Oxide Technical Documents
Indium Oxide (Type A and B) (Presentation)
Indium Oxide (Type A and B) (A4)
Product Data Sheet
Indium Oxide (Type T) (US Letter)
Product Data Sheet
Indium Oxide & Indium Tin Oxide (ITO) Coatings (US Letter)
Indium Oxide & Indium Tin Oxide (ITO) Coatings (A4)
Indium Oxide Technical Documents
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Safety Data Sheets
Indium Alloy Blog Posts
Indium Corporation manufactures 60 different alloys that contain indium, in addition to over 150 other non-indium-bearing alloys, such as SAC and SnPb.
Having samples of different alloys can be very useful for R&D departments. Fortunately, Indium Corporation offers solder research kits so you can test various alloys with your assembly process to find just the right match.
Indium alloys can help you by reducing the assembly temperature needed to form interconnections. (solder joints)
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