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Issue 38, 2015
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Structure, luminescence properties and energy transfer of Tb3+–Eu3+ codoped LiBaB9O15 phosphors

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Abstract

A series of single-composition phosphors LiBaB9O15:Tb3+,Eu3+ have been prepared via a high-temperature solid-state reaction process. The structure and luminescence properties of phosphors are described. The LiBaB9O15:Tb3+ phosphor shows a characteristic green emission, with the peak located at 551 nm, which corresponds to the 5D47F5 transition of Tb3+. The LiBaB9O15:Eu3+ phosphor presents an obvious red emission, with the peak located at 617 nm, which is ascribed to the 5D07F2 transition of Eu3+. The highly intense red emission peaks of the Eu3+ ions were attributed to an effective energy transfer from the Tb3+ to Eu3+ ions in LiBaB9O15:Tb3+,Eu3+, which has been verified through the luminescence spectra and the fluorescence decay dynamics. The results mean that LiBaB9O15:Tb3+,Eu3+ phosphors might have potential applications as a red emitting phosphor for white LEDs.

Graphical abstract: Structure, luminescence properties and energy transfer of Tb3+–Eu3+ codoped LiBaB9O15 phosphors

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Publication details

The article was received on 17 May 2015, accepted on 17 Aug 2015 and first published on 20 Aug 2015


Article type: Paper
DOI: 10.1039/C5DT01849H
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Citation: Dalton Trans., 2015,44, 16840-16846

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    Structure, luminescence properties and energy transfer of Tb3+–Eu3+ codoped LiBaB9O15 phosphors

    T. Li, P. Li, Z. Wang, S. Xu, Q. Bai and Z. Yang, Dalton Trans., 2015, 44, 16840
    DOI: 10.1039/C5DT01849H

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