Fabrication, structure and photoluminescence properties of Eu3+-activated red-emitting Ba2Gd2Si4O13phosphors for solid-state lighting

Lü Tian-shuai; XU Xu-hui; WANG Da-jian; SUN Liang; QIU Jian-bei

doi:doi:10.1007/s11801-014-3210-z

光电子快报（英文版）, 2014, 10 (2): 106, Published Online: Oct. 12, 2017

Fabrication, structure and photoluminescence properties of Eu³⁺-activated red-emitting Ba₂Gd₂Si₄O_{13_{phosphors for solid-state lighting}}

Lü Tian-shuai ¹XU Xu-hui ¹WANG Da-jian ²SUN Liang ²QIU Jian-bei ^1,*

Author Affiliations

¹ College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China

² School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China

Abstract

Eu³⁺-activated red-emitting Ba₂Gd₂Si₄O_{13_{phosphors are prepared via microwave (MW) synthesis and solid-state (SS) method. The structural and luminescent properties of phosphors are investigated by X-ray diffraction (XRD), photoluminescence (PL) spectra and scanning electron microscopy (SEM). Upon 393 nm excitation, compared with the sample sintered by SS method, luminescence enhancement is observed in the sample synthesized by MW method. The mechanism of MW synthesis process is discussed in detail. Results indicate that the PL enhancement is probably related to the concave-convex phosphor surfaces and uniform grains, which may reinforce scattering of excitation light. Our research may further promote the understanding of MW synthesis and extend the application of Eu³⁺-activated Ba₂Gd₂Si₄O_{13_{in white light-emitting diodes.}}}}

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Lü Tian-shuai, XU Xu-hui, WANG Da-jian, SUN Liang, QIU Jian-bei. Fabrication, structure and photoluminescence properties of Eu³⁺-activated red-emitting Ba₂Gd₂Si₄O_{13_{phosphors for solid-state lighting[J]. 光电子快报（英文版）, 2014, 10(2): 106.}}

Fabrication, structure and photoluminescence properties of Eu³⁺-activated red-emitting Ba₂Gd₂Si₄O_{13_{phosphors for solid-state lighting}}

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