Synthesis and Luminescent Characteristics of Dy3+/Eu3+ Co-doped Single-phased Ca9Y(PO4)7 White-light-emitting Phosphors

doi:10.7503/cjcu20120400

Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (11): 2373.doi: 10.7503/cjcu20120400

• Article: Inorganic Chemistry • Previous Articles Next Articles

Synthesis and Luminescent Characteristics of Dy³⁺/Eu³⁺ Co-doped Single-phased Ca₉Y(PO₄)₇ White-light-emitting Phosphors

LI Yun-Li^1,2, LIANG Yu-Jun^1,2, HUANG Wen-Zhu², XIA Zhang-Gen², GONG Yan-Sheng², ZHOU Wei²

1. Engineering Research Center of Nano-Geomaterials, Ministry of Education, China University of Geosciences, Wuhan 430074, China;
2. Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China

Received:2012-04-26 Online:2012-11-10 Published:2012-10-15

Abstract

Abstract:

A single-phased Ca₉Y(PO₄)₇: Dy³⁺,Eu³⁺ white-light-emitting phosphors were synthesized by solid-state reaction. X-ray diffractometer and fluorescence spectrophotometer were used to character their structures and photoluminescence properties. XRD results exhibit that Ca₉Y(PO₄)₇: Dy³⁺,Eu³⁺ phosphors belong to rhombohedra structure, Dy³⁺ and Eu³⁺ in the host of Ca₉Y(PO₄)₇ replace the site of Y³⁺. The emission and excitation spectra show that Dy³⁺ and Eu³⁺ can be effectively excited by UV light. The luminescence intensities and chromaticity coordinates can be modified by controlling the concentration and the ratio of doping agent Dy³⁺ and Eu³⁺, and all samples’ chromaticity coordinates are located in white light area. Therefore, the as-fabricated single-phased Ca₉Y(PO₄)₇: Dy³⁺, Eu³⁺ have potential applications in the field of white light emitting diodes(LEDs).

Key words: Luminescent material, Solid-state reaction, Optical property, White-light-emitting Phosphors

CLC Number:

O611.4

TrendMD:

LI Yun-Li, LIANG Yu-Jun, HUANG Wen-Zhu, XIA Zhang-Gen, GONG Yan-Sheng, ZHOU Wei. Synthesis and Luminescent Characteristics of Dy³⁺/Eu³⁺ Co-doped Single-phased Ca₉Y(PO₄)₇ White-light-emitting Phosphors[J]. Chem. J. Chinese Universities, 2012, 33(11): 2373.

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Synthesis and Luminescent Characteristics of Dy³⁺/Eu³⁺ Co-doped Single-phased Ca₉Y(PO₄)₇ White-light-emitting Phosphors

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