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Charge transfer luminescence of Yb~(3+) in orthophosphates

机译:正磷酸盐中Yb〜(3+)的电荷转移发光

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摘要

Charge transfer luminescence of Yb in theorthophosphates REPO_4 (RE= Sc, Lu, Y, La) has beeninvestigated. Yb~(3+) shows charge transfer luminescence in theorthophosphates of cations with a relative small radius (Sc, Lu, Y).In LaPO_4, no proof for Yb~(3+) charge transfer luminescencehas been found. The decay time of the charge transferluminescence is about 150 ns in the three orthophosphates. Thequenching temperature is around 250 K and is compared with thequenching temperature of Eu~(3+) luminescence in theorthophosphates after excitation in the charge transfer state.
机译:研究了正磷酸盐REPO_4(RE = Sc,Lu,Y,La)中Yb的电荷转移发光。 Yb〜(3+)表示阳离子正磷酸盐中的电荷转移发光,半径相对较小(Sc,Lu,Y)。在LaPO_4中,找不到Yb〜(3+)电荷转移发光的证据。在三种正磷酸盐中,电荷转移发光的衰减时间约为150 ns。猝灭温度约为250 K,并与在电荷转移状态下激发后正磷酸盐中Eu〜(3+)发光的猝灭温度进行比较。

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