English abs synthesis and packaging performance of regular spherical YAG:Ce3+ phosphors for white LEDs

被引：0

作者：

Hua, You-Jie ^{[1
]}

Ma, Hong-Ping ^{[2
]}

Zhang, Chi ^{[1
]}

Deng, De-Gang ^{[1
]}

Zhao, Shi-Long ^{[1
]}

Huang, Li-Hui ^{[1
]}

Wang, Huan-Ping ^{[1
]}

Xu, Shi-Qing ^{[1
]}

机构：

[1] College of Materials Science and Engineering, China Jiliang University

[2] School of Mechanical and Automotive Engineering, Zhejiang University of Science and Technology

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2013年 / 34卷 / 04期

关键词：

Optical properties; Particle size; Phosphors; White LEDs;

D O I：

10.3788/fgxb20133404.0427

中图分类号：

学科分类号：

摘要：

YAG:Ce3+ phosphors with regular spherical morphology and different particle size distribution were successfully prepared by solid-state reaction followed by sieving method. XRD analysis revealed that crystal lattice parameters nearly unchanged with the variation of particle size. The effect of particle size distribution on optical properties was investigated by spectrophotometer. The results indicated that the absorption of blue light and emission intensity of phosphors simultaneously decreased with decreasing of particle size. Meanwhile, the maximum emission wavelength showed blue shift and chromaticity shifted toward green region with smaller particle size. The packaging performance suggested that the reduction in particle size will result in reduction of luminous efficiency. In contrast, the colour temperature (Tc) and general colour rendering index (Ra) increased with decreasing of particle size.

引用

页码：427 / 432

页数：5

共 20 条

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