Interactions Between Nitrogen, Hydrogen, and Gallium Vacancies in GaAs1-xNx Alloys

A. Janotti, Su Huai Wei, S. B. Zhang, Sarah Kurtz, C. G. Van de Walle

Research output: Contribution to journalArticlepeer-review

102 Scopus Citations

Abstract

The effects of H on the interaction between Ga vacancies (formula presented) and N in (formula presented) dilute alloys are studied through first-principles total-energy calculations. We find that N binds to Ga vacancies and that in the presence of H this binding is enhanced. The formation energy of (formula presented) bonded to N and H (resulting in a (formula presented) complex) can be more than 2 eV lower than that of the isolated Ga vacancy (formula presented) in GaAs. Our finding that the concentration of (formula presented) increases with N and even more in the presence of H allows us to interpret several recent experiments.

Original languageAmerican English
Article number161201
Pages (from-to)1612011-1612014
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume67
Issue number16
DOIs
StatePublished - 30 Apr 2003

NREL Publication Number

  • NREL/JA-590-34433

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