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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 14/2018

17.05.2018

Luminescent property and application research of red molybdate phosphors for W-LEDs

verfasst von: Yan Chen, Yongyin Liang, Minjun Cai, Taiyan Ke, Mei Zhang, Xin He, Qingguang Zeng

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 14/2018

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Abstract

Gd2(MoO4)3:10%Eu3+ and AgGdMo2O8:10%Eu3+ phosphors were synthesized by a liquid deposition method and characterized by X-ray diffraction, scanning electron microscopy, diffuse reflectance and fluorescent spectrophotometry. Gd2(MoO4)3 phosphor is of orthorhombic structure and AgGdMo2O8 phosphor is of tetragonal structure. Both of the phosphors have high absorption and excitation efficiency in near ultraviolet area, which emit mainly at about 615 nm with narrow bands. Comparing with Gd2(MoO4)3:10%Eu3+, AgGdMo2O8:10%Eu3+ red phosphor has small size and uniform distribution. Therefore, under 395 nm excitation, the emission intensity of AgGdMo2O8:10%Eu3+ around 615 nm is twice as much as that of Gd2(MoO4)3:Eu3+. Moreover, the color purity and luminous efficiency of the phosphors converted LEDs based on AgGdMo2O8:10%Eu3+ red phosphor and Ga(In)N chips, are also higher than that of Gd2(MoO4)3:Eu3+. The results demonstrated that AgGdMo2O8:Eu3+ is more suitable to be a red phosphor applying for white LEDs.
Vorheriger Artikel Microstructural evolution of Cu–Sn–Ni compounds in full intermetallic micro-joint and in situ micro-bending test
Nächster Artikel Carbon modified porous γ-Fe2O3 as anode for high performance Li-ion batteries

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Metadaten
Titel
Luminescent property and application research of red molybdate phosphors for W-LEDs
verfasst von
Yan Chen
Yongyin Liang
Minjun Cai
Taiyan Ke
Mei Zhang
Xin He
Qingguang Zeng
Publikationsdatum
17.05.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 14/2018
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-018-9294-7

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