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Charge Transfer Luminescence of Yb<sup>3+</sup> in Orthophosphates

descriptionPublicationkeyboard_double_arrow_right Article 01 Jul 1999Publisher:Trans Tech Publications, Ltd.Journal:Materials Science Forum, volume 315-317, pages 446-456 (eissn: 1662-9752,

Authors: L. van Pieterson; Andries Meijerink;

doi: 10.4028/www.scientific.net/msf.315-317.446 , 10.1016/s0925-8388(99)00756-2

Charge Transfer Luminescence of Yb<sup>3+</sup> in Orthophosphates

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Abstract

Abstract Charge transfer luminescence of Yb3+ in the orthophosphates REPO4 (RE=Sc, Lu, Y, La) has been investigated. Yb3+ shows charge transfer luminescence in the orthophosphates of cations with a relative small radius (Sc, Lu, Y). In LaPO4, no proof for Yb3+ charge transfer luminescence has been found. The decay time of the charge transfer luminescence is about 150 ns in the three orthophosphates. The quenching temperature is around 250 K and is compared with the quenching temperature of Eu3+ luminescence in the orthophosphates after excitation in the charge transfer state.

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Utrecht University
Netherlands

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