Up-converted ultraviolet luminescence of Er3+:BaGd2ZnO5 phosphors for healthy illumination

doi:10.1007/s11706-016-0350-z

Frontiers of Materials Science

2016, Vol. 10

Issue (3): 328-333 https://doi.org/10.1007/s11706-016-0350-z

本期目录

Up-converted ultraviolet luminescence of Er³⁺:BaGd₂ZnO₅ phosphors for healthy illumination

Ya ZHANG¹,Qingzhi CUI¹,Zhanyong WANG¹,Gan LIU²,Tian TIAN^1,^*(

),Jiayue XU^1,^*(

)

¹. Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
². Nanjing SKY Traffic Safety Technology Stock Co. Ltd., Nanjing 210014, China

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Abstract：

Moderate level of exposure to the solar irradiation containing UV component is essential for health care. To incorporate the UV-emitting phosphors into the commercial YAG-based white light-emitting diode introduces the possibilities of healthy illumination to individuals’ daily lives. 1 mol.% Er³⁺-doped BaGd₂ZnO₅ (BGZ) particles were synthesized via sol–gel method and efficient up-converted luminescence peaked at 380 nm was detected under 480 nm excitation. The mixed phosphors with varied mass ratio of Er³⁺:BGZ and Ce³⁺:YAG particles were encapsulated to form LEDs. The study of the LEDs indicated that the introduction of BGZ component favored the enhancement of color-rendering index and the neutralization of the white light emitting. The WLED with the BGZ/YAG ratio of 8:2 was recommendable for its excellent overall white light luminous performances and UV intensity of 84.55 mW/cm². The UV illumination dose of the WLEDs with mixed YAG and BGZ was controllable by adjusting the ratio, the illumination distance and the illumination time. Er³⁺:BGZ phosphors are promising UV-emitting phosphors for healthy indoor illumination.

Key words： Er³⁺:BaGd₂ZnO₅ up-converted ultraviolet LED healthy illumination

收稿日期: 2016-06-01 出版日期: 2016-08-08

Corresponding Author(s): Tian TIAN,Jiayue XU

引用本文:

. [J]. Frontiers of Materials Science, 2016, 10(3): 328-333.
Ya ZHANG,Qingzhi CUI,Zhanyong WANG,Gan LIU,Tian TIAN,Jiayue XU. Up-converted ultraviolet luminescence of Er³⁺:BaGd₂ZnO₅ phosphors for healthy illumination. Front. Mater. Sci., 2016, 10(3): 328-333.

链接本文:

https://academic.hep.com.cn/foms/CN/10.1007/s11706-016-0350-z
https://academic.hep.com.cn/foms/CN/Y2016/V10/I3/328

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