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1.中国科学院 上海硅酸盐研究所,上海 200050
2.中国科学院大学 材料科学与光电技术学院,北京 100049
3.厦门大学 材料学院,福建 厦门 361005
Received:22 April 2021,
Revised:11 May 2021,
Published:01 October 2021
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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, 2021, 42(10): 1502-1509.
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, 2021, 42(10): 1502-1509. DOI: 10.37188/CJL.20210146.
目前报道的高热导AlN-CaAlSiN
3
∶Eu红色复相荧光陶瓷由于放电等离子体烧结(SPS)产生的碳污染问题导致发光性能难以提高。本研究工作提出了一种减少氮化物荧光陶瓷碳污染的有效方法,即采用热等静压(HIP)在N
2
气氛中处理SPS烧结的样品。实验表明,经过HIP处理后样品的发光强度和量子效率最高均提高了一倍左右,光通量提高了51%,发光饱和阈值提高了15%以上。其中,性能最佳的样品在入射激光功率高达15 W时依然保持完好且未发生发光饱和,光通量高达197 lm。本研究工作利用HIP处理制备出具有优异发光性能和极高发光饱和阈值的红色荧光陶瓷,促进了大功率激光照明领域的发展。
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
and the luminous flux is up to 197 lm.
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