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Number of results
2010 | 117 | 1 | 143-145
Article title

Recombination Processes in PbWO_{4}:Tb^{3+} Crystals

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Languages of publication
EN
Abstracts
EN
In the paper the results of investigations of X-ray excitation spectra, thermostimulated luminescence and the influence of light illumination on the thermoluminescence glow curves of pure and Tb-doped PbWO_{4} crystals are presented. It is suggested that the F^{-}-centres are formed in PbWO_{4} crystals at filling oxygen vacancies near Pb^{3+} ions to three electrons under X-ray irradiation at 90 K. The nature of 108 K thermostimulated luminescence peak is connected with the [(WO_{3} + F^{-})-Pb^{3+}] associations. It was established that thermal or optical destruction of this peak leads to appearance of the radiative transitions of excitons localized near the [(WO_{3} + F)-Pb^{2+}] complex centres.
Keywords
EN
Year
Volume
117
Issue
1
Pages
143-145
Physical description
Dates
published
2010-01
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv117z127kz
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