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

摘要

Gallium Nitride nano-particles (GaN NPs) are synthesized by a simple nitridation method. A mixture of commercially available β-Gallium Oxide (β-Gasub2/subOsub3/sub) and GaN powders with about 5 μm particle size was heated at temperatures ranging from 700–1,000 °C in an ammonia (NHsub3/sub) atmosphere for 1 h. In the powder mixture, the β-Gasub2/subOsub3/sub particles converted to GaN NPs agglomerates, while the GaN particles are slightly grown. When the mixture was heated in the NHsub3/sub atmosphere at 900 °C, GaN NPs varying from 30 to 50 nm and microsized GaN particles were obtained.