Article (Scientific journals)
Spinel-structured gallium oxynitride (Ga3O3N) synthesis and characterization: An experimental and theoretical study
Soignard, E.; Machon, D.; McMillan, P. F. et al.
2005In Chemistry of Materials, 17 (22), p. 5465-5472
Peer Reviewed verified by ORBi
 

Files


Full Text
Soignard et al. - 2005 - Spinel-Structured Gallium Oxynitride (Ga3O3N) Synthesis and Characterization An Experimental and Theoretical Study.pdf
Publisher postprint (347.08 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] Recently the new family of spinel-structured nitrides and oxynitrides of group 14 elements (Si, Ge, Sn) has been explored using high-pressure synthesis techniques. The solid-state compounds have high hardness, and they are semiconducting materials that are predicted to have a wide direct band gap. Here we have prepared the corresponding gallium oxynitride spinel with ideal formula Ga3O3N. The synthesis conditions and stability of the new phase were predicted using first-principles calculations, and the experimental study was realized using a combination of laser-heated diamond anvil cell and multianvil high-pressure, high-temperature synthesis techniques. Chemical analysis and X-ray structure refinement indicate that the new phase contains vacancies on the octahedrally coordinated Ga sites, to give an experimental stoichiometry of Ga2.8N0.64O3.24. The Raman spectrum consists of broad bands and resembles the phonon density of states, due to N/O disorder on the anion sites. Optical excitation of the sample with 325 nm laser light at room temperature results in strong photoluminescence between 400 and 750 nm.
Disciplines :
Materials science & engineering
Author, co-author :
Soignard, E.
Machon, D.
McMillan, P. F.
Dong, J. J.
Xu, Bin 
Leinenweber, K.
Language :
English
Title :
Spinel-structured gallium oxynitride (Ga3O3N) synthesis and characterization: An experimental and theoretical study
Publication date :
2005
Journal title :
Chemistry of Materials
ISSN :
0897-4756
eISSN :
1520-5002
Publisher :
Amer Chemical Soc, Washington, United States - Washington
Volume :
17
Issue :
22
Pages :
5465-5472
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 January 2013

Statistics


Number of views
70 (0 by ULiège)
Number of downloads
0 (0 by ULiège)

Scopus citations®
 
72
Scopus citations®
without self-citations
60
OpenCitations
 
72

Bibliography


Similar publications



Contact ORBi