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Title: Recharging behavior of nitrogen-centers in ZnO

Electron Paramagnetic Resonance was used to study N{sub 2}-centers in ZnO, which show a 5-line spectrum described by the hyperfine interaction of two nitrogen nuclei (nuclear spin I = 1, 99.6% abundance). The recharging of this center exhibits two steps, a weak onset at about 1.4 eV and a strongly increasing signal for photon energies above 1.9 eV. The latter energy coincides with the recharging energy of N{sub O} centers (substitutional nitrogen atoms on oxygen sites). The results indicate that the N{sub 2}-centers are deep level defects and therefore not suitable to cause significant hole-conductivity at room temperature.
Authors:
; ;  [1] ; ;  [2] ; ;  [3]
  1. I. Physikalisches Institut, Justus-Liebig-Universitaet Giessen, D-35392 Giessen (Germany)
  2. Department of Physics, Chemistry and Biology, Linkoeping University, 58183 Linkoeping (Sweden)
  3. Department of Physics and Astronomy and Materials Science Program, Washington State University, Pullman, Washington 99164-2814 (United States)
Publication Date:
OSTI Identifier:
22314597
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABUNDANCE; ATOMS; ELECTRON SPIN RESONANCE; EV RANGE 01-10; GROUNDWATER RECHARGE; HOLES; NITROGEN; NUCLEI; PHOTONS; SIGNALS; SPECTRA; SPIN; TEMPERATURE RANGE 0273-0400 K; ZINC OXIDES