Synthesis of gallium nitride nano-particles by ammonia nitridation of mixed β-gallium oxide and gallium nitride powders

Abstract

Gallium Nitride nano-particles (GaN NPs) are synthesized by a simple nitridation method. A mixture of commercially available ¢-Gallium Oxide (¢-Ga 2 O 3) and GaN powders with about 5¯m particle size was heated at temperatures ranging from 7001,000°C in an ammonia (NH 3) atmosphere for 1 h. In the powder mixture, the ¢-Ga 2 O 3 particles converted to GaN NPs agglomerates, while the GaN particles are slightly grown. When the mixture was heated in the NH 3 atmosphere at 900°C, GaN NPs varying from 30 to 50 nm and microsized GaN particles were obtained.