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Preparation of Ce3+∶Y3Al5O12-Al2O3 Nano Ceramics by Aerodynamic Suspension Solidification for LDs-driven Lighting Application
增强出版- Chinese Journal of Luminescence Vol. 42, Issue 10, Pages: 1510-1519(2021)
- 作者机构：
1.中国科学院过程工程研究所 湿法冶金清洁生产技术国家工程实验室，中国科学院绿色过程与工程重点实验室，北京 100190
2.中国科学院大学，北京 100049
- 作者简介：
- 基金信息：the National Natural Science Foundation of China(51972304;51971208);Beijing Municipal Science and Technology Project(Z191100004819002);Project of Scientific Experiment on Chinese Manned Space Station;Chinese Academy of Sciences President's International Fellowship Initiative for 2021(2021VEA0012)
DOI：10.37188/CJL.20210167
CLC： O482.31Published：01 October 2021，
Received：01 May 2021，
Revised：18 May 2021，
扫 描 看 全 文
Shao-wei FENG, Ying ZAHNG, Yong-chang GUO, et al. Preparation of Ce3+∶Y3Al5O12-Al2O3 Nano Ceramics by Aerodynamic Suspension Solidification for LDs-driven Lighting Application. [J]. Chinese Journal of Luminescence 42(10):1510-1519(2021)
Shao-wei FENG, Ying ZAHNG, Yong-chang GUO, et al. Preparation of Ce3+∶Y3Al5O12-Al2O3 Nano Ceramics by Aerodynamic Suspension Solidification for LDs-driven Lighting Application. [J]. Chinese Journal of Luminescence 42(10):1510-1519(2021) DOI： 10.37188/CJL.20210167.
摘要
蓝光激光二极管激发荧光材料获得高亮度光源技术逐渐成为大功率照明和显示领域的重要发展方向。激光照明与显示的研究涉及发光材料、光学工程、机械结构和电路设计等多学科领域，其中光学设计和荧光转换材料与器件属于核心技术，由于较高的研发和生产成本，限制了其广泛应用。本文采用无容器凝固技术快速、低成本制备Ce
3+
∶Y
3
Al
5
O
12
-Al
2
O
3
(Ce
3+
∶AY26)基荧光纳米陶瓷，通过调控Ce
3+
掺杂浓度优化其发光性能，0.5%Ce
3+
∶AY26获得了高内量子效率(87.4%)；过量的Al
2
O
3
做为第二相能够起到散射中心作用，提高激光激发的转换效率和光束均匀性，并且Al
2
O
3
具有高热导率，制备的Ce
3+
∶AY26基荧光纳米陶瓷的内量子效率在温度升到200 ℃时，仍保持室温下的95%。通过透射式激光照明测试系统，对比研究了厚度为1.5 mm荧光纳米陶瓷片和半径为1.5 mm半球形荧光纳米陶瓷在高功率密度蓝光激光辐照下的光色性能，实现了174 lm·W
-1
的流明效率。利用无容器凝固技术制备半球形荧光纳米陶瓷，有望从材料制备方法的角度简化透射式激光照明模组的光学结构设计，未来具有巨大的应用潜力。
Abstract
Obtaining high luminance light source by emitting and excitation of blue-emitting laser diodes(LDs) has become an important research direction in the field of high-power lighting and display. This field involves multiple disciplines including luminescent materials
optical engineering
mechanical structure and circuit design
among which optical design and color conversion materials and devices are key technologies. Due to their high research and production expenditure
they have become one of the factors limiting the realization of large-scale and widespread applications. In this paper
the rapid and low cost preparation of Ce
3+
∶Y
3
Al
5
O
12
-Al
2
O
3
(Ce
3+
∶AY26)based phosphor nanoceramics by pneumatic suspension solidification was studied. The luminescence performance was optimized by adjusting Ce
3+
doping concentration for achieving higher quantum efficiency (87.4%). As the second phase
Al
2
O
3
not only can play the role of scattering center and improve the conversion efficiency and beam uniformity of laser excitation
but also has higher thermal conductivity
which plays a key role in improving the thermal stability
and Ce
3+
∶AY26 phosphor nanoceramics still hold 95% of room temperature quantum efficiency when temperature reached 200 ℃. Through the transmission laser illumination test system
the optical and color properties of 1.5 mm thick phosphor nanoceramics sheet with LE of 174 lm·W
-1
and 1.5 mm semispherical phosphor nanoceramic under high power density blue laser irradiation were studied. Hemispherical phosphor nanoceramics prepared by containerless solidification technology are expected to simplify the optical structure design of transmission laser illumination modules from the point of view of material preparation methods and have great application potential in the future.
关键词
无容器凝固Ce3+∶Y3Al5O12-Al2O3荧光纳米陶瓷激光照明
Keywords
containerless solidificationCe3+∶Y3Al5O12-Al2O3phosphor nanoceramicsLDs-driven lighting
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