1. Synthesis of β-GaN nanocrystals with a cubic structure by gas-phase chemical reaction
- Author
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Qiu Hai-Lin, Cao Chuanbao, Zhu Hesun, Fang Kun, and Gao Shan-Min
- Subjects
Materials science ,General Physics and Astronomy ,Gallium nitride ,Nanotechnology ,Metathesis ,Chemical reaction ,Nanocrystalline material ,chemistry.chemical_compound ,Nanocrystal ,chemistry ,Chemical engineering ,Phase (matter) ,Nanorod ,Reactivity (chemistry) - Abstract
β-GaN nanocrystalline have been successfully synthesized from the nitridation of GaP nanocrystalline at low temperatures by gas_phase chemical reaction. The s tarting GaP nanocrystalline has a large specific surface and a high reactivity that can reduce remarkably the difficulty of nitridation. The results of GaP nan ocrystalline in N2 at different heating rates support the fact that β-GaN nan ocrystalline can form in GaP nanocrystalline via N-P metathesis gas_phase chemic al mechanism. The mechanism is different when different heating rate was used. T his method is very simple and is used generally to synthesize β-GaN nanopartic les or nanorods.
- Published
- 2005