Anomalous diffusion profiles of Ag in CdTe due to chemical self-diffusion.
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.
Wolf
H
H
Technische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany.
Wagner
F
F
Wichert
Th
T