Journal
SURFACE & COATINGS TECHNOLOGY
Volume 172, Issue 1, Pages 95-101Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0257-8972(03)00314-1
Keywords
indium-tin-oxide films; indium nitrate; active carbon; chemical solution deposition
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Indium-tin-oxide (ITO) films were deposited on substrates of soda lime glass via a dipping coating process from a mixed ethanolic solution of indium nitrate and tin chloride. The conductivity of the ITO films were improved by adding in the bath of active carbon to create a reducing atmosphere during heating. Under such an active carbon process, the optimum conditions of heat-treatment such as atmosphere, soaking temperature and Sn/In ratio for low sheet resistance of ITO film was investigated. The best sheet resistance of ITO films made from this process was 248+/-28 Omega/rectangle with Sn/In ratio of 0.08 which was heat-treated at 550 degreesC for 1 h in vacuum with active carbon. The optical transmittance of the films in the range of 400-800 nm was 80-90%. (C) 2003 Elsevier Science B.V. All rights reserved.
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