Thin Solid Films, Vol.532, 60-65, 2013
Low temperature processing of redispersed tin doped indium oxide nanoparticle coatings
The deposition of transparent conducting oxide (TCO) coatings using for example chemical vapor deposition, spray pyrolysis or a conventional sol-gel routine usually needs high temperatures and is therefore only applicable to temperature-stable substrates like glass. The deposition of TCO coatings on temperature-sensitive substrates requires low-temperature deposition processes like redispersed nanoparticle suspensions combined with e.g. the dip-coating technique. To obtain a tin doped indium oxide (ITO) nanoparticle suspension for the coating process, ITO nanopowder is redispersed in a mixture of solvents, cross-linking agents and stabilizers. In this work it is shown that four different stabilizers and mixtures of these stabilizers can be used and how the choice of the stabilizers influences the properties of the coatings concerning the reflectance of the surface, the layer composition, that means the porosity and the surface roughness of the layers, and the electrical conductivity. (C) 2013 Elsevier B.V. All rights reserved.