Journal ArticleDOI
Luminescent Transitions Associated With Divalent Copper Impurities and the Green Emission from Semiconducting Zinc Oxide
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TLDR
In this paper, the role of deep acceptor states in electronic processes in covalent solids was investigated and it was found that the transition is an optical charge transfer between a highly shielded localized level of the copper impurity and a level which is strongly perturbed by the valence-band states of the crystal.Abstract:
Luminescent transitions at divalent copper impurities in ZnO give rise to a close-spaced, no-phonon doublet at \ensuremath{\sim}2.8590 eV, as well as a broad multiphonon side band. The transition is found to be an optical charge transfer between a highly shielded localized level of the copper impurity and a level which is strongly perturbed by the valence-band states of the crystal. The analysis provides information about the role of deep acceptor states in electronic processes in covalent solids.read more
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A comprehensive review of zno materials and devices
Ümit Özgür,Ya. I. Alivov,C. Liu,A. Teke,Michael A. Reshchikov,Seydi Doğan,Vitaliy Avrutin,Sang-Jun Cho,Hadis Morkoç +8 more
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