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Issue 1, 2014
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A new study on the energy transfer in the color-tunable phosphor CaWO4:Bi

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Abstract

In this article, the scheelite-structured phosphors of CaWO4 and Bi3+ doped CaWO4 were successfully synthesized by the high temperature solid state reaction, and the photoluminescence (PL) properties and decay curves of the samples were investigated between 10 and 300 K. The results have shown clearly that the sample emission is tunable via tailoring the energy transfer between the Bi3+ and WO42− anion groups by the selection of either proper bismuth content or excitation scheme. Depending on the excitation scheme, energy transfer does happen from Bi3+ to WO42− or in the reverse, which, however, has never been noticed. Direct spectroscopic evidences as well as the mechanism have been presented for these processes in this work.

Graphical abstract: A new study on the energy transfer in the color-tunable phosphor CaWO4:Bi

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Publication details

The article was received on 06 May 2013, accepted on 13 Sep 2013 and first published on 16 Sep 2013


Article type: Paper
DOI: 10.1039/C3DT51183A
Citation: Dalton Trans., 2014,43, 277-284
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    A new study on the energy transfer in the color-tunable phosphor CaWO4:Bi

    F. Kang and M. Peng, Dalton Trans., 2014, 43, 277
    DOI: 10.1039/C3DT51183A

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