Yellow luminescence of gallium nitride generated by carbon defect complexes.
Phys Rev Lett
; 110(8): 087404, 2013 Feb 22.
Article
em En
| MEDLINE
| ID: mdl-23473203
ABSTRACT
We demonstrate that yellow luminescence often observed in both carbon-doped and pristine GaN is the result of electronic transitions via the C(N)-O(N) complex. In contrast to common isolated defects, the C(N)-O(N) complex is energetically favorable, and its calculated optical properties, such as absorption and emission energies, a zero phonon line, and the thermodynamic transition level, all show excellent agreement with measured luminescence data. Thus, by combining hybrid density functional theory and experimental measurements, we propose a solution to a long-standing problem of the GaN yellow luminescence.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Estados Unidos