首页|Concentration and temperature dependence behaviors of photoluminescence and scintillation properties of Lu2O3:Pr single crystals
Concentration and temperature dependence behaviors of photoluminescence and scintillation properties of Lu2O3:Pr single crystals
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NSTL
Elsevier
? 2022 Elsevier B.V.Praseodymium doped lutecia (Lu1?xPrx)2O3 (x = 0.003, 0.006 and 0.01) single crystals have been prepared by optical floating zone (OFZ) method. The concentration and temperature dependence of photoluminescence and scintillation properties, including photoluminescence excitation (PLE) and photoluminescence (PL), PL decay, X-ray excited luminescence (XEL) and afterglow curves were systematically investigated. Both onward (Pr(S6)→Pr(C2)) and inverse (Pr(C2)→Pr(S6)) energy transfers are observed in Lu2O3:Pr. It is found that with the increasing of Pr3+ concentration, the Pr(S6)→Pr(C2) energy transfers efficiency increases. And the PL decay time becomes faster due to the increasing cross relaxation transition. Meanwhile, as the temperature increases (78–500 K), the onward and inverse energy transfer efficiencies between the two kinds of Pr3+ are enhanced simultaneously. The highest scintillation efficiency is Lu2O3:0.6%Pr and afterglow levels of obtained single crystals were comparable.
Lu2O3:PrPhotoluminescence and scintillation propertiesSingle crystal
Feng H.、Huang S.、Yu H.、Zheng J.、Liu C.、Yang X.、Yang F.
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School of Material Science and Engineering Shanghai University
NSTL
Elsevier
