Synthesis optimization and charge carrier transfer mechanism in LiLuSiO4:Ce, Tm storage phosphor

Anna Dobrowolska, Adrie J.J. Bos, Pieter Dorenbos

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

LiLuSiO4:Ce and LiLuSiO4:Ce, Tm show very efficient charge carrier storage properties upon beta irradiation after samples have received treatment in vacuum. They outperform the commercial storage phosphor BaFBr(I):Eu2+ in many aspects. The influence of the synthesis conditions, Ce and Tm concentration, nonstoichiometry and codoping with Ca, Hf, Al and Ge are reported. Based on the results of the synthesis optimization, thermoluminescence (TL) emission and TL excitation spectra a mechanism of charge carrier transfer, storage, and recombination during irradiation and thermal or optical readout is proposed.

Original languageEnglish
Article number106147
JournalRadiation Measurements
Volume127
DOIs
Publication statusPublished - 2019

Keywords

  • Cerium
  • Charge transfer
  • Storage phosphors
  • Thermoluminescence
  • Thulium

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