Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10632102 | Materials Research Bulletin | 2005 | 7 Pages |
Abstract
Transparent conducting oxide (TCO) films in the ZnO-In2O3 system were prepared by a pulsed laser deposition method. A target that consists of the mixture of ZnO and In2O3 powders was used. Influences of the target composition x (x = [Zn]/([Zn] + [In])) and heater temperature on structural, electrical and optical properties of the TCO films were examined. Introduction of oxygen gas into the chamber during the deposition was necessary for improvement in the transparency of the deposited films. The amorphous phase was observed for a wide range of x = 0.20-0.60 at 110 °C. Minimum resistivity was 2.65 Ã 10â4 Ω cm at x = 0.20. The films that showed the minimum resistivity had an amorphous structure and the composition shifted toward larger x, as the substrate temperature increased. The films were enriched in indium compared to the target composition and the cationic In/Zn ratio increased as the substrate temperature was increased.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Michio Mikawa, Toshihiro Moriga, Yuji Sakakibara, Yukinori Misaki, Kei-ichiro Murai, Ichiro Nakabayashi, Kikuo Tominaga,