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Temperature Dependence of the Diffusion of Photoexcited Holes in AgBr
Author(s) -
Georgiev M.,
Zagorska E.,
Malinowski J.
Publication year - 1968
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19680280232
Subject(s) - activation energy , trapping , arrhenius equation , diffusion , materials science , effective diffusion coefficient , lattice (music) , lattice diffusion coefficient , condensed matter physics , thermodynamics , chemistry , physics , medicine , ecology , radiology , acoustics , magnetic resonance imaging , biology
A detection technique based on the bleaching of a thin silver deposit is used to investigate the diffusion of photoinduced holes between ‐35 and +35 ° C. The apparent diffusion coefficient is found to follow an Arrhenius‐type temperature dependence exhibiting an activation energy of 0.53 eV. Following previous suggestions, it is again concluded that the holes become engaged in multiple trapping while migrating within the crystal lattice. Some trapping models are discussed.