INDIUM TIN OXIDE POWDER, METHOD FOR PRODUCING SAME, DISPERSION, PAINT, AND FUNCTIONAL THIN FILM

摘要

This indium tin oxide powder has a median diameter of 30 nm to 45 nm and a D 90 value of 60 nm or less in a particle size distribution. This method for producing an indium tin oxide powder includes, in series: a step (A) of coprecipitating an indium tin hydroxide by using a tin (Sn 2+ ) compound under conditions where a pH is in a range of 4.0 to 9.3 and a liquid temperature is in a range of 5°C or higher, wherein the indium tin hydroxide has a color tone ranging from bright yellow to color of persimmon in a dried powder state; a step (B) of drying and calcining the indium tin hydroxide, and thereby, obtaining indium tin oxide; and a step (C) of dry pulverizing the obtained indium tin oxide in a nitrogen atmosphere.