Anomalous Diffusion Profiles of Ag in CdTe due to Chemical Self-Diffusion | Zendy

H. Wolf | Zendy; F. Wagner | Zendy; Th. Wichert | Zendy

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Anomalous Diffusion Profiles of Ag in CdTe due to Chemical Self-Diffusion

Author(s) -

H. Wolf,

F. Wagner,

Th. Wichert

Publication year - 2005

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.94.125901

Subject(s) - diffusion , self diffusion , materials science , stoichiometry , cadmium telluride photovoltaics , anomalous diffusion , analytical chemistry (journal) , chemical physics , thermodynamics , chemistry , nanotechnology , physics , innovation diffusion , knowledge management , self service , chromatography , marketing , computer science , business

Anomalous diffusion profiles of Ag in single crystalline CdTe were observed using the radiotracer 111Ag. The diffusion anneals were performed at 800 K under Cd or Te vapor and in a vacuum for different Ag concentrations. The measured Ag profiles directly reflect the distribution of the self-interstitials and vacancies of the Cd sublattice and are the result of chemical self-diffusion which describes the variation of the deviation from stoichiometry of the binary crystal as a function of depth and time.

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