Influence of Impurities on the Luminescence Quantum Efficiency of the Lamp Phosphor ( Ce , Gd , Tb ) MgB5 O 10

descriptionPublicationkeyboard_double_arrow_right Article 01 Aug 1994Publisher:The Electrochemical SocietyJournal:Journal of The Electrochemical Society, volume 141, pages 2,201-2,207 (issn: 0013-4651, eissn: 1945-7111,

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Authors: W. van Schaik; S. H. M. Poort; J. J. H. Schlotter; E. Dorrestijn; G. Blasse;

doi: 10.1149/1.2055087

Influence of Impurities on the Luminescence Quantum Efficiency of the Lamp Phosphor ( Ce , Gd , Tb ) MgB5 O 10

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Abstract

The influence of impurities on the luminescence quantum efficiency of Ce 0.2 Gd 0.6 Tb 0.2 MgB 5 O 10 has been studied. Low concentrations of Pr 3+ , Nd 3+ , Dy 3+ , Ho 3+ , and Er 3+ do not compete efficiently with Gd 3+ and Tb 3+ for the excitation energy on the Ce 3+ ions. However, the luminescence efficiency of Ce 3+ is strongly decreased by Sm 3+ and Eu 3+ due to an electron transfer process

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