nitrogen is a deep acceptor in zno

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ID: 145890
2011
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Abstract
Zinc oxide is a promising material for blue and UV solid-state lighting devices, among other applications. Nitrogen has been regarded as a potential p-type dopant for ZnO. However, recent calculations [Lyons, Janotti, and Van de Walle, Appl. Phys. Lett. 95, 252105 (2009)] indicate that nitrogen is a deep acceptor. This paper presents experimental evidence that nitrogen is, in fact, a deep acceptor and therefore cannot produce p-type ZnO. A broad photoluminescence (PL) emission band near 1.7 eV, with an excitation onset of ∼2.2 eV, was observed, in agreement with the deep-acceptor model of the nitrogen defect. The deep-acceptor behavior can be explained by the low energy of the ZnO valence band relative to the vacuum level.
Reference Key
tarun2011aipnitrogen Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;M. C. Tarun;M. Zafar Iqbal;M. D. McCluskey
Journal journal of hydrology: x
Year 2011
DOI
10.1063/1.3582819
URL
http://dx.doi.org/10.1063/1.3582819
Keywords
physics

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