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Issue 85, 2015
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Energy transfer and color tuning in the Ba9Sc2Si6O24:Ce3+,Eu2+,Mn2+ phosphor

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Abstract

A series of single phase Ba9−xySc2−zSi6O24:xCe,yEu,zMn phosphors was synthesized by high-temperature solid-state reactions. The luminescent properties of single-doped, co-doped and tri-doped Ce3+/Eu2+/Mn2+ in the host Ba9Sc2Si6O24 were studied on the basis of the photoluminescence excitation/emission spectra, photoluminescence decay behaviors and time resolved emission spectra. Two types of luminescent centers of Eu(1)/Eu(2,3) as well as Ce(1)/Ce(2,3) occupying different crystallography sites were confirmed, and the sensitizing effects of Ce3+ → Eu2+, Ce2+ → Mn2+ and Eu2+ → Mn2+ were clearly observed. In the tri-doped samples, Eu2+ competed with Mn2+ for the energy transferred from Ce3+ and also transferred its observed energy to Mn2+. Furthermore, the tri-doped Ba9Sc2Si6O24 phosphors emitting white light with various correlated color temperatures were obtained by adjusting the relative content of Ce3+, Eu2+ and Mn2+.

Graphical abstract: Energy transfer and color tuning in the Ba9Sc2Si6O24:Ce3+,Eu2+,Mn2+ phosphor

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Publication details

The article was received on 09 Jun 2015, accepted on 27 Jul 2015 and first published on 27 Jul 2015


Article type: Paper
DOI: 10.1039/C5RA10945K
Citation: RSC Adv., 2015,5, 69458-69465
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    Energy transfer and color tuning in the Ba9Sc2Si6O24:Ce3+,Eu2+,Mn2+ phosphor

    L. Bian, C. Liu, J. Gao and X. Jing, RSC Adv., 2015, 5, 69458
    DOI: 10.1039/C5RA10945K

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