Surface Coating / Alfa Chemistry

Conductive Transparent ITO Coating


You can choose our appropriate Indium Tin Oxide (ITO) coating to support your individual application whenever you require a glass with a conductive surface and strong light transmission. We use sputter deposition techniques to overlay thin conductive transparent ITO layers on high-quality glass substrates to achieve conductive and high-light transmission capabilities.

This method produces an ITO thin film with exceptional micro-roughness. Alkali-free glass, thin glass, and quartz glass are among the substrate materials that the ITO coating can be placed to. Please contact us for additional details.

Applications and Benefits of Indium Tin Oxide Coating

Alfa Chemistry constructs transparent surface low resistance conductive ITO coatings with a variety of advantages including high light transmission, reflectivity in the infrared wavelength range, and electromagnetic field shielding properties.

Based on its multiple advantages, ITO coatings can be used in a wide variety of applications such as anodes for OLEDs, electronic circuit substrates, LCD and OLED displays, microscope slides, touchscreens, etc.

Applications and Benefits of Indium Tin Oxide Coating

Alfa Chemistry Standard Optical Coating

Alfa Chemistry can provide ITO coating services on your glass substrates for your scientific research. We produce ITO coatings that allow you to pattern the surface using laser or etching. In our conductive transparent ITO coatings, a nanoscale SiO2 passivation layer is located between the substrate and the indium tin oxide film. This allows the ITO layer not to come into direct contact with the substrate. This passivation layer prevents the leaching of alkali metal oxides from the soda-lime glass into the liquid crystal. This has many benefits for electronics, as it extends the life of electronic devices.

Standard Optical CoatingFig 1. Reversible visible/near-infrared photoresponsive thin films of ITO-NC@copolymer/PCL (INCP) based on indium tin oxide nanocrystals and polymers exhibit temperature-dependent thermal/photoresponsive properties. (Wu J, et al. 2020)

The following substrates are available to us, including float glass, alkali-free aluminosilicate glass, borosilicate glass, alkali-free boroaluminosilicate, polished optical grade quartz glass, etc. We can also use other substrates according to your requirements.

The ITO coating surface does not specify the overall refractive index of the glass it covers. The refractive index of the transparent ITO film remains approximately 1.95 for visible wavelengths.

These ITO coatings have the following special properties.

  • The ITO coating has low micro-roughness.
  • The ITO coating has excellent wear resistance and strong coating adhesion.
  • The ITO coating can be structured by laser or etching processes.
  • The conductive coating is a highly transparent sputtered indium tin oxide film.
  • The ITO coating has high surface resistance uniformity, high transmission uniformity, and reflects infrared wavelengths.
  • The ITO coating is suitable for excellent light transmission in the visible to the near-infrared wavelength range.

In addition, we can create ITO coatings on specific substrates to match your needs. For some materials, this is a possibility. For a custom ITO coated glass quote, please contact us with your specifics.


  • Wu J, et al. (2020). "Reversible Visible/Near-infrared Light Responsive Thin Films Based on Iindium Tin Oxide Nanocrystals and Polymer." Scientific Reports. 10: 12808.

Our products and services are for research use only and cannot be used for any clinical purpose.

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