期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 251, 期 1, 页码 206-210出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201349261
关键词
deep levels; DLTS; ZnO
资金
- National Research Agency (ANR)
- Carnot funding
Deep level transient spectroscopy measurements were performed on three non-intentionally doped n-type ZnO samples grown by different techniques in order to investigate the electronic properties of E3 electron trap. The ionization energy and the capture cross-section are found respectively at 0.275eV from the conduction band and 2.3x10(-16)cm(2) with no electric field dependence. This center is present irrespective of the synthesis method. In view of its physical properties and recent works published in the literature, its physical origin is discussed. Based mainly on its insensibility to the macroscopic electric field, the best candidates turn out to be dual defects with opposite charges on adjacent sites, like the dual vacancy V-O-V-Zn. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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