Depth of electron traps in silver halides by the thermoluminescence spectra method
1974; Elsevier BV; Volume: 9; Issue: 2 Linguagem: Inglês
10.1016/0022-2313(74)90024-6
ISSN1872-7883
Autores Tópico(s)Advanced Chemical Physics Studies
ResumoThe thermoluminescent emissions of AgCl and AgBr crystals have been investigated as excited at liquid N2 temperature with UV light. The spectra of both halides were found to exhibit a single glow peak, with maxima at 140 and 124 ° K respectively. Analysis of the data yields an activation energy of 0.13 eV for AgCl and 0.096 for AgBr. The trapping centres are identified with Frenkel defects and evidence is obtained in favour of the carrier trap situation presupposed by the Mitchell and Mott model for the latent photographic image formation.
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