Thickness and Surface Roughness Effect on Lighting Performance of Ce3+: YAG Transparent Ceramics Based High Power LED and LD Lighting Prototype Devices
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Luminescence Industry and Technology I Frontier|更新时间:2020-11-10
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Thickness and Surface Roughness Effect on Lighting Performance of Ce3+: YAG Transparent Ceramics Based High Power LED and LD Lighting Prototype Devices
Chinese Journal of LuminescenceVol. 41, Issue 11, Pages: 1411-1420(2020)
作者机构:
1.中国科学院上海硅酸盐研究所 高性能陶瓷和超微结构国家重点实验室, 上海 200050
2.福州大学 材料科学与工程学院, 福建 福州 350116
3.中国科学院大学 材料科学与光电研究工程中心, 北京 100049
4.常州星宇车灯股份有限公司, 江苏 常州 213022
5.上海激光技术研究所, 上海 200233
作者简介:
基金信息:
the National Key Research and Development Program of China;Research Program of Shang
Zhe-han ZHENG, Xiang ZHANG, Xiao-ke XU, et al. Thickness and Surface Roughness Effect on Lighting Performance of Ce3+: YAG Transparent Ceramics Based High Power LED and LD Lighting Prototype Devices. [J]. Chinese Journal of Luminescence 41(11):1411-1420(2020)
DOI:
Zhe-han ZHENG, Xiang ZHANG, Xiao-ke XU, et al. Thickness and Surface Roughness Effect on Lighting Performance of Ce3+: YAG Transparent Ceramics Based High Power LED and LD Lighting Prototype Devices. [J]. Chinese Journal of Luminescence 41(11):1411-1420(2020) DOI: 10.37188/CJL.20200236.
Thickness and Surface Roughness Effect on Lighting Performance of Ce3+: YAG Transparent Ceramics Based High Power LED and LD Lighting Prototype Devices
(Ce:YAG) transparent phosphor ceramics were fabricated by solid state reaction method through vacuum sintering. The effects of thickness(0.3~2.3 mm) and surface roughness(322.86 nm
9.79 nm) of the ceramics on correlated color temperature
color rendering index
and photoelectric conversion efficiency were studied under the excitation of high power blue LED chip(3.2 V×0.3 A) and blue LD lighting(0.8 W
1.6 W). The luminescence property can also be improved by tuning the surface roughness of the ceramics
the Ce:YAG transparent ceramics with a roughness of 322.86 nm obtained high luminescence efficiency of 93.6 lm/W(blue light LED excitation) and 178.5 lm/W(blue light LD excitation)
respectively. The results show that the luminescence performance of high power density solid-state lighting devices can be effectively improved by adjusting the thickness and surface state of Ce:YAG transparent ceramics.
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