Xing-lin PENG, Shu-xing LI, Ao-chen DU, et al. Hot Isostatic Pressing Post-treatment and Performance of Red-emitting AlN-CaAlSiN3∶Eu Composite Phosphor Ceramics. [J]. Chinese Journal of Luminescence 42(10):1502-1509(2021)
DOI:
Xing-lin PENG, Shu-xing LI, Ao-chen DU, et al. Hot Isostatic Pressing Post-treatment and Performance of Red-emitting AlN-CaAlSiN3∶Eu Composite Phosphor Ceramics. [J]. Chinese Journal of Luminescence 42(10):1502-1509(2021) DOI: 10.37188/CJL.20210146.
Hot Isostatic Pressing Post-treatment and Performance of Red-emitting AlN-CaAlSiN3∶Eu Composite Phosphor Ceramics增强出版
The previously reported highly thermal conductive red-emitting AlN-CaAlSiN
3
∶Eu composite phosphor ceramic is difficult to improve the luminescence performance due to the carbon contamination problem caused by spark plasma sintering(SPS). In this paper
hot isostatic pressing(HIP) post-treatment is used to prepare red-emitting phosphor ceramics with excellent luminescence performance and extremely high saturation threshold
which promotes the development of high-power laser lighting. The SPS sintered samples were treated by HIP in N
2
atmosphere. The experimental results show that the luminescence intensity and quantum efficiency of the samples are doubled after HIP post-treatment
the luminous flux is increased by 51%
and the saturation threshold is increased by more than 15%. The sample with the best performance remains intact without luminance saturation when the incident laser power is as high as 15 W
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