Preparation and Optical Properties of Highly Crystalline, Colloidal, and Size‐Controlled Indium Oxide Nanoparticles

Abstract
Highly crystalline and monodisperse In2O3 nanoparticles have been prepared by thermal decomposition of In(acac)3 in oleylamine under inert atmosphere. The particle size of In2O3 can be easily manipulated by changing the experimental conditions. A weak size dependence of photoluminescence is also demonstrated. The Figure shows a 3D superlattice of 6 nm diameter nanoparticles.