Colloidal indium tin oxide nanoparticles for transparent and conductive films

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Nanosized colloidal indium tin oxide (ITO) dispersion was prepared for electrically conductive and transparent coating materials. A titanate coupling agent, isopropyl tri(N-ethylenediamino)ethyl titanate, was chosen as a dispersant for the stabilization of ITO nanoparticles in organic solvent. ITO sot was deposited on a cathode ray tube panel for antistatic or electromagnetic shielding purposes, and alkyl silicate was used for the formation of an antireflective over-coat layer. The resulting double-layered coating showed low sheet resistance, which satisfied semi-TCO regulation and low reflectance of visible light. To control the electrical and optical properties of the coating layer, the effects of secondary particle size of ITO aggregates and the dispersant concentration of ITO sot were studied. The stability of ITO sot was estimated by measuring the particle size as a function of the storage days and the aggregation of colloidal ITO dispersion with storage day was explained by depletion flocculation. (c) 2006 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE SA
Issue Date
2006-12
Language
English
Article Type
Article
Keywords

RHEOLOGICAL BEHAVIOR; ITO FILMS; COATINGS; POWDER; DISPERSION

Citation

THIN SOLID FILMS, v.515, no.4, pp.1864 - 1871

ISSN
0040-6090
DOI
10.1016/j.tsf.2006.07.022
URI
http://hdl.handle.net/10203/12761
Appears in Collection
CBE-Journal Papers(저널논문)
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