Indium Tin Oxide (ITO) - Properties and Applications


Tin doped indium oxide (In2O3) is a transparent conducting material that is usually used in thin coating form. As a coating it is commonly deposited by methods such as electron beam evaporation or a range of sputtering techniques.

Key Properties

The optical and electronic properties if ITO films are dependent on factors such as deposition parameters and starting materials. For instance, the film must contain a high density of charge carriers to conduct, however, the higher the density of charge carriers, the lower the transparency.

Solid ITO is typically yellowish to grey depending on its degree of oxidation. Other properties are outlined below.

Property Value
Density (g/cm3) 7.14
Melting Point (°C) ~1900



Indium Tin Oxide is commonly used in applications such as:

  • Touch panels
  • Electrochromic, electroluminescent and LCD displays
  • Plasma displays
  • Field emission displays
  • Heat reflective coatings
  • Energy efficient windows
  • Gas sensors
  • Photovoltaics




  1. Abbas N. Znad Abbas N. Znad Canada says:

    What is the heat of fusion of ITO?

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