The energy transfer to the luminescence centers in PbWO4статья
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Дата последнего поиска статьи во внешних источниках: 21 октября 2020 г.
Аннотация:The luminescence spectra, rise and decay kinetics and the yield of luminescence in undoped PbWO4 crystals were studied after pulsed electron beam irradiation. The luminescence intensity rise observed after irradiation pulse showed two mechanisms—excitonic relaxation and electron–hole recombination—were involved in the formation of the excited states of the blue luminescence centers. It is proposed that the excited states of WO3 and WO2−4 luminescence centers were formed from some intermediate metastable state.