Issue 110, 2016
From the journal:

RSC Advances

Potential single-phased white-emitting phosphor (Ca0.33Sr0.67)7(SiO3)6Cl2: Ce3+, Eu2+ for ultraviolet light-emitting diode

Wanying Geng,a   Xufeng Zhoua  and  Yuhua Wang*a  

* Corresponding authors

a Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, China
E-mail: wyh@lzu.edu.cn

Abstract

A series of white-emitting and color temperature-tunable phosphors (Ca0.33Sr0.67)7(SiO3)6Cl2: Ce3+, Eu2+ have been synthesized by high temperature solid-state reaction. The photoluminescence emission and excitation spectra, and the lifetime are investigated in detail. The samples could display varied color emission from violet (0.1696, 0.0693) towards standard white (0.3314, 0.334) and ultimately to warm white (0.3773, 0.396) under excitation by 340 nm light by adjusting the relative proportion of Ce3+/Eu2+. The energy transfer mechanism from Ce3+ to Eu2+ in the (Ca0.33Sr0.67)7(SiO3)6Cl2 phosphors is dominated by the electric dipole–dipole interaction. These results indicate that the (Ca0.33Sr0.67)7(SiO3)6Cl2: Ce3+, Eu2+ phosphor might be promising as a single-phased white-light-emitting phosphor for UV LEDs.

Graphical abstract: Potential single-phased white-emitting phosphor (Ca0.33Sr0.67)7(SiO3)6Cl2: Ce3+, Eu2+ for ultraviolet light-emitting diode

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Article information

DOI
https://doi.org/10.1039/C6RA21283B
Article type
Paper
Submitted
24 Aug 2016
Accepted
23 Oct 2016
First published
24 Oct 2016

RSC Adv., 2016,6, 108964-108968

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Potential single-phased white-emitting phosphor (Ca0.33Sr0.67)7(SiO3)6Cl2: Ce3+, Eu2+ for ultraviolet light-emitting diode

W. Geng, X. Zhou and Y. Wang, RSC Adv., 2016, 6, 108964 DOI: 10.1039/C6RA21283B

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