气候变化领域集成服务门户(CCPortal): CO2 laser post-treatment of sol-gel-derived Y3Al5O12:Ce phosphor ceramic powders

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DOI	10.1016/j.ceramint.2021.03.178
	CO2 laser post-treatment of sol-gel-derived Y3Al5O12:Ce phosphor ceramic powders
	Nien Y.-T.; Tsai C.-H.; Zheng R.-H.; Ye H.-J.
发表日期	2021
ISSN	2728842
英文摘要	Cerium-doped yttrium aluminum garnet (Y3Al5O12:Ce, YAG:Ce) was prepared using a sol-gel method and then fired for CO2 laser post-treatments. Phase transformations and formation of impurities were not observed in YAG:Ce after CO2 laser sintering. The shift of the diffraction peak and the appearance of another Raman peak indicate a more homogeneous distribution of Ce activators and enhanced crystallinity in laser-sintered YAG hosts. Larger spheres (100–200 μm) with tiny crystallites (<10 μm) were observed on the smoother surface in the laser-sintered YAG:Ce, unlike the irregular, porous, and layered powders in the sol-gel-derived YAG:Ce (1–100 μm). Photoluminescence (PL) measurements revealed an emission increase of 180% and a red shift of the emission peak for the laser-sintered YAG:Ce powders compared with the sol-gel-derived powders. Both have comparable thermal PL quenching behavior; however, the YAG:Ce powders with CO2 laser treatment exhibited a PL efficiency improvement of approximately 4%. © 2021 Elsevier Ltd and Techna Group S.r.l.
英文关键词	CO2 laser; Photoluminescence; Sintering; Sol-gel; YAG
scopus关键词	Carbon dioxide; Carbon dioxide lasers; Cerium compounds; Crystallinity; Photoluminescence; Powders; Red Shift; Sol-gel process; Sol-gels; Yttrium aluminum garnet; Ceramic powder; Cerium-doped; CO$-2$/ laser; Laser sintered; Post treatment; Sol'gel; Sol- gel methods; YAG; YAG: Ce; Yttrium aluminum garnet; Sintering
来源期刊	Ceramics International
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177281
作者单位	Department of Materials Science and Engineering, National Formosa University, Yunlin, 632, Taiwan
推荐引用方式 GB/T 7714	Nien Y.-T.,Tsai C.-H.,Zheng R.-H.,et al. CO2 laser post-treatment of sol-gel-derived Y3Al5O12:Ce phosphor ceramic powders[J],2021.
APA	Nien Y.-T.,Tsai C.-H.,Zheng R.-H.,&Ye H.-J..(2021).CO2 laser post-treatment of sol-gel-derived Y3Al5O12:Ce phosphor ceramic powders.Ceramics International.
MLA	Nien Y.-T.,et al."CO2 laser post-treatment of sol-gel-derived Y3Al5O12:Ce phosphor ceramic powders".Ceramics International (2021).