The paper reviews a low temperature sol-gel processing of transparent and antiglare conducting Sn doped indium oxide (ITO) coatings. The approach uses already crystalline nanoparticles which can be fully redispersed in an ethanolic sol containing a polymerisable organic binder. Thick single layers up to 600 nm can be deposited by spin and dip coating techniques followed either by a low temperature (<130°C) heat treatment or by a UV light irradiation. Stable resistivity down to 9.

Aegerter, Michel A.

Al-Dahoudi, Naji

Scientific documents from the Saarland University,

Wet-chemical processing of transparent and antiglare conducting ITO coating on plastic substrates

Abstract. The paper reviews a low temperature sol-gel processing of transparent and antiglare conducting Sn doped indium oxide (ITO) coatings. The approach uses already crystalline nanoparticles which can be fully re-dispersed in an ethanolic sol containing a polymerisable organic binder. Thick single layers up to 600 nm can be deposited by spin and dip coating techniques followed either by a low temperature (&lt;130◦C) heat treatment or by a UV light irradiation. Stable resistivity down to 9.5 × 10−2 cm (sheet resistance of 1.7 k  for a 560 nm thick layer) have been obtained, together with high visible transparency (T ≈ 87%), good adhesion (DIN 58196-K2, and 53151) and abrasion resistance (DIN 58-196 G10 and H25) and 1 H hardness. Irradiation through a mask allows to easily pattern the coatings. Antiglare-conducting coatings with adjustable gloss (60 to 80 GU) and maintaining a good optical resolution (&gt;8 lines/nm) were obtained by a conventional spraying technique. These techniques have been successfully applied to several plastic substrates such as polycarbonate (PC), polymethylmetacrylate (PMMA), polyimide, polyethylene (PE) as well as glasses

M. A. Aegerter

N. Al-dahoudi

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