Novel full color greenish-white-emitting Sr3Bi(PO4)3∶Eu2+ phosphor for white light-emitting diodes

Yufeng Liu; Yanjun Ding; Zhimin Peng

doi:10.1117/1.OE.53.1.010501

26 December 2013 Novel full color greenish-white-emitting Sr₃Bi(PO₄)₃∶Eu²⁺ phosphor for white light-emitting diodes

Yufeng Liu, Yanjun Ding, Zhimin Peng

Author Affiliations +

Optical Engineering, Vol. 53, Issue 1, 010501 (December 2013). https://doi.org/10.1117/1.OE.53.1.010501

Abstract

The full color greenish-white-emitting phosphors Eu²⁺-doped Sr₃ Bi(PO₄)₃ have been successfully synthesized by the conventional solid-state reaction, and its photoluminescence properties have been investigated for the first time. The emission spectra of Sr₃Bi(PO₄)₃∶Eu²⁺ phosphors exhibit a greenish-white-emitting by combining blue, green, and red emissions, which are originated from the 5d→4f transition of the Eu²⁺. The excitation spectra reveal broad strong bands from 300 to 400 nm, which match well with the readily available emissions from near-ultraviolet light-emitting diode (LED) chips. The correlated color temperature, color rendering index (CRI), and Commission Internationale de I’Eclairage chromaticity coordinates of the entitled phosphors excited by 330 and 365 nm are also investigated. The experimental results indicate that the Eu²⁺-doped Sr₃ Bi(PO₄)₃ phosphors are a promising innovative greenish-white-emitting phosphor for white LEDs.

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Yufeng Liu, Yanjun Ding, and Zhimin Peng "Novel full color greenish-white-emitting Sr₃Bi(PO₄)₃∶Eu²⁺ phosphor for white light-emitting diodes," Optical Engineering 53(1), 010501 (26 December 2013). https://doi.org/10.1117/1.OE.53.1.010501

Published: 26 December 2013

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