Preparation of Transparent Conductive (ZnO) m In 2 O 3 Fine Powder by Gel‐Combustion Reaction

• Published in: Journal of the American Ceramic Society Vol. 88; no. 2; pp. 308 - 311
• Main Authors: Kikkawa, Shinichi, Hosokawa, Shoji, Ogawa, Hidetoshi
• Format: Journal Article
• Language: English
• Published: 01-02-2005
• ISSN: 0002-7820; 1551-2916
• DOI: 10.1111/j.1551-2916.2005.00049.x

A fine powder of (ZnO)
m
In
2
O
3
(
m
=3, 4) was obtained by the self‐combustion reaction, under firing at a furnace temperature of 350°C in a nitrogen atmosphere, of a gel prepared from a mixed zinc and indium nitrate aqueous solution peptized with citric acid. A (ZnO)
3
In
2
O
3
single‐phase product was obtained when citric acid was substituted by glycine, because the combustion temperature of glycine mixture is >1260°C. The highest electrical conductivity, 0.2 S cm
−1
, was obtained in a tin‐substituted, transparent conducting (ZnO)
m
In
2
O
3
product, where
m
=3 and 4.