Investigation of the Reaction Time and the Process of Synthesis of GaN Nanopowders by Ammoniating Ga2O3

Abstract:

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GaN nanopowders were synthesized by ammoniating pure Ga2O3 powders at 1000°C for different soaking time. The results show that the growth of GaN at this temperature is based on vapor-solid mechanism. The ammoniating reaction finished and the rearrangement process started when the soaking time is 0.5 h. When the soaking time is 1.5 h, the process of high-temperature aggradation transformed to thermal decomposition-re-crystallization process. Further increasing of soaking time, the fabricated GaN particles with large size aggregated by directional fixed nanorods are substituted by self-governed particles, which agglomerate as honeycomb. Photolumine- scence measurement (PL) test reveals that as prepared sample with 1.5 h possesses the best luminescent property.

Info:

Periodical:

Advanced Materials Research (Volumes 105-106)

Edited by:

Wei Pan and Jianghong Gong

Pages:

376-379

DOI:

10.4028/www.scientific.net/AMR.105-106.376

Citation:

X. S. Xue et al., "Investigation of the Reaction Time and the Process of Synthesis of GaN Nanopowders by Ammoniating Ga2O3", Advanced Materials Research, Vols. 105-106, pp. 376-379, 2010

Online since:

April 2010

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Price:

$35.00

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