Carbon impurities and the yellow luminescence in GaN

Using hybrid functional calculations we investigate the effects of carbon on the electrical and optical properties of GaN. In contrast to the currently accepted view that C substituting for N ( C N ) is a shallow acceptor, we find that C N has an ionization energy of 0.90 eV. Our calculated absorpti...

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Veröffentlicht in:	Applied physics letters 2010-10, Vol.97 (15), p.152108-152108-3
Hauptverfasser:	Lyons, J. L., Janotti, A., Van de Walle, C. G.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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