Title
Near band-edge optical properties of cubic GaN with and without carbon doping
Abstract
We report the results of studying the optical properties of cubic GaN thin films with photoluminescence and photoluminescence excitation spectroscopies. The films are deposited by plasma-assisted molecular beam epitaxy on GaAs (001) substrates, with and without intentional doping with carbon atoms (p-type doping). The evolution of the optical spectra of the C-doped samples is consistent with a picture in which carbon enters into N-vacancies at low concentrations, producing a marked improvement in the crystalline properties of the material. At higher concentrations it begins to form complexes, possibly due to interstitial occupation. The temperature dependence on the absorption edge of the doped material is also measured and is analyzed with standard theoretical models.
Year
DOI
Venue
2004
10.1016/S0026-2692(03)00226-X
Microelectronics Journal
Keywords
Field
DocType
Carbon doping,Photoluminescence,Photoluminescence excitation
Molecular beam epitaxy,Gallium nitride,Photoluminescence excitation,Doping,Absorption edge,Engineering,Thin film,Semiconductor,Condensed matter physics,Photoluminescence
Journal
Volume
Issue
ISSN
35
1
0026-2692
Citations 
PageRank 
References 
0
0.34
0
Authors
11
Name
Order
Citations
PageRank
J.R.L. Fernandez100.34
F. Cerdeira200.34
E.A. Meneses300.34
J.A.N.T. Soares400.34
O.C. Noriega500.34
J.R. Leite612.99
D.J. As721.59
U. Köhler800.34
D.G.P. Salazar900.34
D. Schikora1011.30
K. Lischka1113.33