期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 247, 期 6, 页码 1405-1408出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200983222
关键词
II-VI semiconductors; doping; diffusion
资金
- BMBF [05 KK7TS1]
The diffusion of the impurities Cu, Ag, Au, and Na in CdTe and CdZnTe exhibits the unusual phenomenon of uphill diffusion if the diffusion of the impurity is performed under external Cd pressure at temperatures typically in the range 700-900 K. A model is proposed that describes these concentration profiles quantitatively and yields pre-requisites for the observation of uphill diffusion. If a metal layer is evaporated onto the implanted surface, the diffusion of the impurity is strongly affected by the generation of intrinsic defects at the metal-semiconductor interface. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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