Synthesis of nanocrystalline gallium nitride in silica aerogels

Goodwin, T. J. ; Leppert, V. J. ; Smith, C. A. ; Risbud, S. H. ; Niemeyer, M. ; Power, P. P. ; Lee, H. W. H. ; Hrubesh, L. W.

Woodbury, NY : American Institute of Physics (AIP)
Published 1996
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Nanocrystals of gallium nitride were synthesized in silica aerogel host matrices by pyrolysis of dimeric dimethylgallium-diphenylamide precursor sequestered in the nanometer scale aerogel pores. Powder x-ray diffraction (XRD) and selected area electron-diffraction results verify the formation of hexagonal gallium nitride material in the aerogels, and Scherrer-broadening analysis of the XRD data indicate the gallium nitride particle size is ∼20 nm. Transmission electron microscopy results show that the gallium nitride nanoparticles have diameters between 10 and 40 nm with an average diameter of 23 nm. The synthesis parameters for the gallium nitride nanocrystals in the aerogel hosts are discussed. © 1996 American Institute of Physics.
Type of Medium:
Electronic Resource
URL: