Single-phased trichromatic white light-emitting Ca6BaP4O17: Sm3+, Ce3+, Eu2+ phosphor for UV-light-emitting diodes

被引：9

作者：

Li, Shengnan ^{[1
]}

Huang, Ping ^{[1
]}

Cui, Cai'e ^{[1
]}

Wang, Lei ^{[1
]}

Tian, Yue ^{[1
]}

Shi, Qiufeng ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2017年 / 123卷 / 04期

基金：

中国国家自然科学基金;

关键词：

ENERGY-TRANSFER; PHOTOLUMINESCENCE; LUMINESCENCE; MECHANISM; CRYSTAL; IONS;

D O I：

10.1007/s00339-017-0877-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Eu2+, Sm3+, Ce3+ co-doped single-phased tunable color conversion phosphor for W-LED was prepared by high-temperature melting under reducing atmosphere. X-ray diffraction and photoluminescence spectra were utilized to characterize the structural and luminescence properties of the as-synthesized phosphors. A strategy of Sm3+ doping was used with the aim of providing red color luminescence, with several sharp emission peaks appearing at 567, 603, 651, and 715 nm ascribed to the 4f-4f transitions of Sm3+. as well as a broad band from 420 to 580 nm due to the spectra overlap between the emission band of Ce3+ and Eu2+, corresponding to the 5d-4f transition of Eu2+ and 5d-4f transition of Ce3+. The luminescence properties of the phosphor with different molar ratios of Eu2+/Ce3+/Sm3+ were studied, and the corresponding chromaticity coordinates were calculated. The ultraviolet light-emitting diode (UV-LED)-excitable phosphors emitting white light were obtained by tuning the relative emission intensities of -Eu2+, Ce3+, and Sm3+. The results indicate that the Eu2+/Ce3+/ Sm3+ co-doped Ca6BaP4O17 phosphor can be used as a potential matrix material for white LED under UV-LED.

引用

页数：7

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