期刊
THIN SOLID FILMS
卷 518, 期 11, 页码 3081-3084出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2009.08.016
关键词
Indium tin oxide; In-Sn-Ce-O; Amorphous; Bending test; Magnetron sputtering
Ce-doped indium tin oxide (ITO:Ce) films were deposited on flexible polyimide substrates by DC magnetron sputtering using ITO targets containing various CeO2 contents (CeO2 : 0, 0.5, 3.0, 4.0, 6.0 wt.%) at room temperature and post-annealed at 200 degrees C. The crystallinity of the ITO films decreased with increasing Ce content, and it led to a decrease in surface roughness. In addition, a relatively small change in resistance in dynamic stress mode was obtained for ITO:Ce films even after the annealing at high temperature (200 degrees C). The minimum resistivity of the amorphous ITO:Ce films was 3.96 x 10(-4) Omega cm, which was deposited using a 3.0 wt.% CeO2 doped ITO target. The amorphous ITO:Ce films not only have comparable electrical properties to the polycrystalline films but also have a crystallization temperature >200 degrees C. In addition, the amorphous ITO:Ce film showed stable mechanical properties in the bended state. (C) 2009 Elsevier B.V. All rights reserved.
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