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	Synthesis of agglomerate-free YAG: Ce3+ phosphors by co-precipitation and low temperature spray pyrolysis
	Gao, Shengxi ; Chen, Yibin ; Zeng, Renjie ; Ceng RJ(曾人杰)
	2011
关键词	Annealing Cerium Cracking (chemical) Emission spectroscopy Light emission Organic acids Packaging Packaging materials Phosphors Precipitation (chemical) Synthesis (chemical)
英文摘要	Conference Name:2011 International Symposium on Advanced Packaging Materials, APM 2011. Conference Address: Xiamen, China. Time:October 25, 2011 - October 28, 2011.; Y3-xCexAl5O12 (YAG: Ce 3+) phosphor particles were prepared by a new method called co-precipitation and low temperature spray pyrolysis (CP-LTSP) with oxalic acid and ammonia as precipitant. It corresponds to the first-step chemical liquid reaction, the second step dehydration and partial decomposition of precipitation droplets at 250°C and then heating at 1100°C or above. Spherical as-prepared particles and agglomerate-free YAG: Ce3+ phosphor particles were obtained respectively. Pure YAG phase could be formed after LTSP at 250°C and then annealing at 1100°C for 4 h. The emission spectra and XRD patterns of YAG: Ce3+ phosphor particles indicated that the optimum doping concentration of Ce3+ was 0.06. The emission intensity increased with the increase of annealing temperature. As a result, the YAG: Ce3+ phosphor particles without optimization annealed at 1550°C for 4 h had the similar emission intensity (96%) of the commercial phosphor by the solid-state method. ? 2011 IEEE.
语种	英语
出处	http://dx.doi.org/10.1109/ISAPM.2011.6105683
出版者	IEEE Computer Society
内容类型	其他
源URL	[http://dspace.xmu.edu.cn/handle/2288/85153]
专题	材料学院－会议论文
推荐引用方式 GB/T 7714	Gao, Shengxi,Chen, Yibin,Zeng, Renjie,et al. Synthesis of agglomerate-free YAG: Ce3+ phosphors by co-precipitation and low temperature spray pyrolysis. 2011-01-01.

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