Yellow Indium Oxide In2O3 Powder 1312-43-2 ITO Coating Materials

Indium Oxide (In₂O₃): Key Material For ITO Coatings, Spectral Analysis Reagents,Glass Additives

Indium oxide (In₂O₃) is an inorganic compound that appears as a pale yellow amorphous powder, turning reddish-brown when heated. It is a novel n-type transparent semiconductor functional material with a wide bandgap, low resistivity, and high catalytic activity, making it widely used in optoelectronics, gas sensors, and catalysts.

Applications

1. Used as a spectroscopic purity reagent and material for electronic components.
2. Applied as a protective coating for metal mirrors and semiconductor thin films in optoelectronic displays.
3. Used in the production of indium salts and specialty glasses.

Product Series

Health and Safety Information

Packaging Specifications

• Standard packaging: 50 kg/drum, 500 kg/pallet, ton bags
• Sample packaging: 500 g/bag, 1 kg/bottle

About Indium Oxide
Indium oxide (In₂O₃) is an inorganic compound appearing as a pale yellow amorphous powder that turns reddish-brown when heated. As a novel n-type transparent semiconductor functional material, it possesses a wide bandgap, low resistivity, and high catalytic activity, finding extensive applications in optoelectronics, gas sensors, and catalysts. Applications include: 1) spectral purity reagents and electronic component materials; 2) protective coatings for metal mirrors and optoelectronic display semiconductor films; 3) production of indium salts and glass. High-purity In₂O₃ can be obtained by combusting high-purity indium metal in air or calcining indium carbonate to produce In₂O, InO, and In₂O₃, with precise reduction conditions yielding high-purity In₂O₃. The spray combustion process can produce indium oxide ceramic powder with an average particle size of 20nm. When preparing In₂O₃ by calcining indium hydroxide, excessive temperature may cause thermal decomposition of In₂O₃, while insufficient temperature makes complete dehydration difficult and produces hygroscopic oxides, making heating temperature and time critical factors. Additionally, since In₂O₃ is easily reduced, an oxidizing atmosphere must be maintained. Calcining indium hydroxide in air at 850°C to constant weight produces In₂O₃, which is then heated in air at 1000°C for 30 minutes. Other indium compounds (nitrate, carbonate, sulfate) can also produce indium trioxide when calcined in air. At nanoscale, In₂O₃ particles exhibit additional properties including surface effects, quantum size effects, small-size effects, and macroscopic quantum tunneling effects.