Color tunable Ba0.79Al10.9O17.14:xEu phosphor prepared in air via valence state control

Ziyao Wang; Yangai Liu; Jian Chen; Minghao Fang; Zhaohui Huang; Lefu Mei

doi:10.1007/s40145-017-0220-x

Journal of Advanced Ceramics (May 2017)

Color tunable Ba0.79Al10.9O17.14:xEu phosphor prepared in air via valence state control

Ziyao Wang,
Yangai Liu,
Jian Chen,
Minghao Fang,
Zhaohui Huang,
Lefu Mei

Affiliations

Ziyao Wang: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Yangai Liu: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Jian Chen: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Minghao Fang: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Zhaohui Huang: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences
Lefu Mei: Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences

DOI: https://doi.org/10.1007/s40145-017-0220-x
Journal volume & issue: Vol. 6, no. 2
pp. 81 – 89

Abstract

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Abstract A series of luminescent Ba0.79Al10.9O17.14:xEu (x = 0.005–0.12) phosphors were prepared by high-temperature solid-state reaction in air atmosphere. The coexistence of Eu2+ and Eu3+ was observed and verified by photoluminescence (PL) and photoluminescence excitation (PLE) spectra, X-ray photoelectron spectra (XPS), and diffuse reflection spectra. The band emission peaking at 430 nm was assigned to 4F65D–4F7 transition of Eu2+, and another four emissions peaking at 589, 619, 655, and 704 nm were attributed to 4F–4F transitions of 5D0–7F J (J = 1, 2, 3, 4) of Eu3+. The related mechanism of self-reduction was discussed in detail. The color of the Ba0.79Al10.9O17.14:xEu phosphors could be shifted from blue (0.23, 0.10) to red (0.42, 0.27) by doping Li+ ions, and the temperature dependence properties were investigated.

Published in Journal of Advanced Ceramics

ISSN: 2226-4108 (Print); 2227-8508 (Online)
Publisher: Tsinghua University Press
Country of publisher: China
LCC subjects: Technology: Chemical technology: Clay industries. Ceramics. Glass
Website: https://www.sciopen.com/journal/2226-4108

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