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Determination of the Nitrogen Acceptor Ionization Energy in Zinc Oxide by Photoluminescence Spectroscopy

Published online by Cambridge University Press:  01 February 2011

Lijun Wang ,
N. Y. Garces ,
L. E. Halliburton  and
N. C. Giles
Lijun Wang
Affiliation:
Physics Department, West Virginia University, Morgantown, WV 26506–6315
N. Y. Garces
Affiliation:
Physics Department, West Virginia University, Morgantown, WV 26506–6315
L. E. Halliburton
Affiliation:
Physics Department, West Virginia University, Morgantown, WV 26506–6315
N. C. Giles
Affiliation:
Physics Department, West Virginia University, Morgantown, WV 26506–6315
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Abstract

Photoluminescence (PL) experiments performed on bulk ZnO crystals are used to establish the ionization energy of the substitutional nitrogen acceptor. The temperature dependence of the nitrogen-related electron-acceptor (e,A°) emission band has been monitored in as-grown single crystals. A lineshape analysis of this band is used to determine the acceptor ionization energy. The temperature variation of the ZnO band gap was included in our analysis and the low-temperature acceptor ionization energy for substitutional nitrogen at an oxygen site in ZnO was found to be EA = 209 ± 3 meV. Electron paramagnetic resonance and Hall-effect measurements were also used to characterize these bulk ZnO samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 799: Symposium Z – Progress in Compound Semiconductor Materials III - Electronic and Optoelectronic Applications , 2003 , Z5.43
Copyright
Copyright © Materials Research Society 2004

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References

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