| abstract |
The present invention provides a conductive powder and a transparent conductive coating made of a Sn-containing In oxide having excellent conductivity and transmission characteristics in a low cost coating type. An In-hydroxide containing a trivalent element and Sn obtained by neutralizing an acidic solution containing In and Sn and a solution containing a trivalent element other than In with an alkali can be used in an amount of 300 to 300. Heat treatment at 1000 ° C. to obtain conductive powder. The powder particles have a rod-like or needle-like shape having a major axis diameter of 500 nm or less, a minor axis diameter of 100 nm or less, and an axial ratio of 1.5 to 10 or a spherical or granular shape having a diameter of 200 nm or less. Further, a coating film using this has excellent conductivity and transmittance. [Selection] Fig. 2 |