A soluble salt-assisted facile synthetic route to semiconducting GaN nanoparticles

By using the soluble salt as the dispersant, a facile synthetic route has been developed to prepare GaN nanoparticle powders on a large scale and in a high yield of 95.8% through the direct nitridation of Ga–Na2SO4 mixture at 700 °C and followed by washing with water. This preparation method is also applicable to some other low-melting-point-metal oxides. The simple preparation procedure and the range of potential applications of the products made this work both scientifically and technologically interesting.