Preparation of Transparent Conductive (ZnO)mIn2O3 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: Oxford, UK Blackwell Science Inc 01-02-2005; Blackwell
• Subjects: Chemistry; Colloidal state and disperse state; Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...); Exact sciences and technology; General and physical chemistry; Inorganic chemistry and origins of life; Powders; Preparations and properties; Scanning electron microscopy; Combustion synthesis; Conducting material; Doping; Experimental study; X ray diffraction; Indium oxide; Porous material; Composite material; Colloidal gel; Transmission electron microscopy; Tin addition; Chemical preparation; Zinc oxide; Aqueous solution; Transparent material; Peptization; Fine powder
• ISSN: 0002-7820; 1551-2916
• DOI: 10.1111/j.1551-2916.2005.00049.x

A fine powder of (ZnO)mIn2O3 (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)3In2O3 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)mIn2O3 product, where m=3 and 4.