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 m2/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 m2/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 (Sn2+) compound under conditions in which pH is 4.0 to 9.3, and a temperature of a liquid is 5° C. or higher; and drying and calcining the indium tin hydroxide.

主权项

1. An indium tin oxide powder,
wherein a specific surface area is in a range of 55 m2/g or more, and a color tone is from bright yellow to a color of persimmons, and Lab values of the color tone are L: 56.0 to 67.1, a: −1.2 to 2.1, and b: 29.5 to 31.5 in a Lab colorimetric system.