4:00 PM - 6:00 PM
[20p-PB5-50] Thermal activation of RPL in BABF glasses and glass-ceramics
Keywords:BaAlBO3F2, radio-photoluminescence
It is known that Eu-doped BaAlBO3F2 glass-ceramics have RPL properties, due to a intra-valence conversion of Eu3+ to Eu2+ induced by irradiation. In this study, we have confirmed that an additional luminescence centre is generated by a post-irradiation heat-treatment around 300oC. The luminescence lifetime is about 5 ns; therefore, we think that the emission origin is related to defect centres.