Low-temperature synthesis of white-light-emitting CsVO₃ nanoparticles by an aqueous solution route

Abstract

CsVO₃ nanoparticles were synthesized by the evaporation of aqueous solutions of peroxo-isopolyvanadic acid and cesium carbonate. The resulting phosphor showed white light Photoluminescence (PL) property with a broad peak in the range of 400–700 nm at an excitation wavelength of 350 nm. The as-prepared CsVO₃ was heat-treated at 200 and 400°C, and an increase in the particle size and PL intensity was observed with increasing heat-treatment temperatures.