INDIUM TIN OXIDE POWDER, PRODUCTION METHOD THEREFOR, TRANSPARENT CONDUCTIVE COMPOSITION, AND INDIUM TIN HYDROXIDE

摘要

One aspect of an indium tin oxide powder has a specific surface area of 55 m 2 /g or more, wherein a color tone is from bright yellow to a color of persimmons or a half-width in the peak of (222) plane is 0.6° or less on an X-ray diffraction chart. Another aspect of the indium tin oxide powder has a modified surface, wherein a specific surface area is 40 m 2 /g or more, a half-width in the peak of (222) plane is 0.6° or less on an X-ray diffraction chart, and a color tone is navy blue (L is 30 or less in a Lab colorimetric system). A method for producing the indium tin oxide powder includes: coprecipitating an indium tin hydroxide by using a tin (Sn 2+ ) compound under conditions in which pH is 4.0 to 9.3, and a temperature of a liquid is 5°C or higher, wherein the indium tin hydroxide has a color tone from bright yellow to a color of persimmons in a dried powder state; and drying and calcining the indium tin hydroxide.