白光LED用Phosphor-in-Glass荧光材料的研究进展

doi:10.15541/jim20160269

无机材料学报 ›› 2017, Vol. 32 ›› Issue (4): 337-345.DOI: 10.15541/jim20160269 CSTR: 32189.14.10.15541/jim20160269

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白光LED用Phosphor-in-Glass荧光材料的研究进展

张瑞^1,2,3, 王伯阳¹, 王海^1,2,3

(桂林理工大学 1. 材料科学与工程学院; 2. 广西有色金属及特色材料加工国家重点实验室培育基地; 3. 广西有色金属隐伏矿床勘查及材料开发协同创新中心, 桂林541004)

收稿日期:2016-04-19 修回日期:2016-06-08 出版日期:2017-04-20 网络出版日期:2017-03-24
基金资助:
国家自然科学基金(51502048, 51462007);广西自然科学基金(2015GXNSFBA139239, 2015GXNSFCA139018);广西有色金属及特色材料加工国家重点实验室培育基地开放基金(13KF-11)

Advances in Phosphor-in-Glass for White LED

ZHANG Rui^1,2,3, Wang Bo-Yang¹, WANG Hai^1,2,3

(1. College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China; 2. Guangxi Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guilin University of Technology, Guilin 541004, China; 3. Collaborative Innovation Center for Exploration of Hidden Nonferrous Metal Deposits and Development of New Materials in Guangxi; Guilin University of Technology, Guilin 541004, China)

Received:2016-04-19 Revised:2016-06-08 Published:2017-04-20 Online:2017-03-24
Supported by:
National Natural Science Foundation of China (51502048, 51462007);Natural Science Foundation of Guangxi province (2015GXNSFBA139239, 2015GXNSFCA139018);Open Foundation in Guangxi Ministry-Province Jointly Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials (13KF-11)

摘要/Abstract

摘要：

荧光粉/玻璃复合材料(Phosphor-in-Glass, PiG)具有优异的发光性能、导热性和化学稳定性, 将有望替代传统白光LED产品中的有机树脂基荧光转换层, 同时解决散热、发光效率、品质、眩光、使用寿命等多项技术性难题, 具有广阔的市场应用前景。本文从发光性能、透明度、机械强度及批量化生产等方面分析了PiG材料研究过程中出现的关键科学问题, 并综述了解决上述问题所采取的针对性措施, 包括制备方法(压片烧结法、熔体急冷法、涂膜烧结法)、材料组分设计和荧光粉层结构优化等, 从而全面阐述了高性能PiG材料的最新研究现状, 最后展望了其未来的研究趋势。

关键词: 白光LED, 荧光粉/玻璃复合材料, 性能优化, 综述

Abstract:

Duo to the unique luminescent property, thermal conductivity and chemical stability, phosphors/glass composite (Phosphor-in-Glass, PiG) has a huge market application prospect as an alternative to silicon-based phosphor converter for conventional white LEDs, as well as a solution to the heat emission, luminous efficiency, quality, glare, lifetime and other technical problems at the same time. Herein, some key scientific topics in terms of PiG materials were analyzed, such as luminescence properties, transparency, mechanical strength, and mass production; the targeted optimization measures were also comprehensively summarized, including preparation methods (tabletting sintering, melt quenching, and film sintering), material composition design, and the structure optimization of phosphor layers. Generally, this review presents the most recent advances of excellent performance PiG materials, and also prospects their research trend.

Key words: white LEDs, phosphor-in-glass, performance optimization, review

中图分类号:

TQ174

张瑞, 王伯阳, 王海. 白光LED用Phosphor-in-Glass荧光材料的研究进展[J]. 无机材料学报, 2017, 32(4): 337-345.

ZHANG Rui, Wang Bo-Yang, WANG Hai. Advances in Phosphor-in-Glass for White LED[J]. Journal of Inorganic Materials, 2017, 32(4): 337-345.

图/表 6

图1 SMT型大功率白光LED的结构示意图

Fig. 1 Comparative structural schematic diagrams of SMT typed high powered white LEDs(a) Traditional organic resin based[4]; (b) Glass ceramic based[5-8]

图2 PiG样品的透射光谱(a)和SEM照片(b), 不同YAG掺杂浓度和样品厚度的PiG基LED器件的发射光谱(c), PiG和硅胶基LED器件的发光热猝灭曲线(d)[16-18]

Fig. 2 Transmittance spectra (a) and SEM image (b) of PiG samples, emission spectra of PiG based LED with different YAG contents or thicknesses (c), and thermal-quenching results of WLEDs with PiGs or commercial silicone resin (d)[16-18]

图3 (a)不同制备条件下的PiG, (b) PiG基LED器件及不同厚度的发射光谱, (c) PiG与PiS的耐热性与耐候性测试[31]

Fig. 3 Photographs of PiG prepared via different conditions (a), the images and emission spectra of different thicked PiG based LED (b), and the temperature dependent and heat resistance test for PiG and PiS (c)[31]

图4 PiG荧光板的显微图像(a), 不同荧光粉层厚度PiG基LED器件的归一化发射光谱(b)和色坐标(c)[39]

Fig. 4 Optical microstructure of PiG (a), normalized emission spectra (b) and CIE color coordinate (c) of PiG based LED with different phosphor thicknesses[39]

表1 玻璃基体、荧光粉的种类及发光颜色

Table 1 Glass matrix, phosphors and their luminescent color

Precursor glass composition	Phosphors	References
SiO₂-R₂O₃-R’O-R”₂O (R = B, Al, La), (R’ = Zn, Ca, Ba), (R” = Li, K)	Ce³⁺:Lu₃Al₅O₁₂ (green) Eu²⁺: SrGa₂S₄ (green) Ce³⁺: YAG (yellow) Eu²⁺: CaAlSiN₃ (red)	[14, 16-23, 26, 44, 45-47]
B₂O₃-R₂O₃-ZnO-K₂O (R = Bi, Al, Sb)	Ce³⁺: YAG (yellow) Eu²⁺: (Ba,Sr,Ca)₂SiO₄(yellow) Eu²⁺: CaAlSiN₃ (red)	[25, 34-35, 40-41]
TeO₂-R₂O₃-ZnO-R”₂O (R = B, Bi, Al, Sb) (R” = Na, K)	Ce³⁺: YAG (yellow) Ce³⁺, Mn²⁺, Si⁴⁺: YAG (orange)	[27-28, 31-33, 36]
SiO₂-B₂O₃-PbO-ZnO	Ce³⁺: YAG (yellow)	[24, 37-39, 42, 46]
P₂O₅-R’O (R’= Zn, Ca, Ba)	Eu²⁺: Ca-α-SiAlON (yellow)	[29]
Nano SiO₂or B₂O₃	Eu²⁺: Ca-α-SiAlON (yellow)	[30]

图5 (a)多组块PiG远程LED器件的电致发光光谱[14], (b)不同荧光粉层结构的LED器件的空间色温分布[46]和(c)基于平均散射长度/散射类型的荧光粉与蓝光之间的相互作用[47]

Fig. 5 (a) EL spectra of reference and multi-PiGs mounted on a remote-type configuration[14], (b) measurements of angular color distributions of LEDs with different layer cone-shaped PiG[46], and (c) interaction between phosphor and blue light based on the mean scattering length and scattering type[47]

参考文献 47

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白光LED用Phosphor-in-Glass荧光材料的研究进展

Advances in Phosphor-in-Glass for White LED

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