Y2SiO5:Ce3+ particle growth during sol-gel preparation
Li Xiujuan1,2; Jiao Huan1,3; Wang Xiaoming1; Zeng Zhengzhi2; Jing Xiping1
AbstractThe phosphor Y2SiO5:Ce3+ was prepared by a sol-gel method and the particle growth process was investigated by XRD, SEM and TEM. After heating at 400 degrees C, the as-dried gel became a powder composed of mixed phases of polycrystalline Y2O3 and amorphous SiO2. With an increase in temperature, the crystallinity of Y2O3 improved. The sample quickly changed to the pure Y2SiO5 phase when it was heated at 1400 degrees C for 10 min. SEM indicated that the as-dried gel consisted of large porous particles. At an annealing temperature of higher than 400 degrees C, the pores in the large particles gradually expanded and grains started to appear. Consequently, the large particles disintegrated into small particles. When the sample was heated at 1400 degrees C, we obtained fine phosphor particles (around 2 mu m) with smooth surfaces. The optimized condition for the preparation of the Y2SiO5:Ce3+ phosphor was to heat at 1400 degrees C for 2 h.
KeywordOptical Materials Morphology Luminescence Sol-gel Chemistry Rare Earths
Indexed BySCI
WOS IDWOS:000281513500005
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorJing Xiping
Affiliation1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
2.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
3.Shaanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Peoples R China
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GB/T 7714
Li Xiujuan,Jiao Huan,Wang Xiaoming,et al. Y2SiO5:Ce3+ particle growth during sol-gel preparation[J]. JOURNAL OF RARE EARTHS,2010,28(4):504-508.
APA Li Xiujuan,Jiao Huan,Wang Xiaoming,Zeng Zhengzhi,&Jing Xiping.(2010).Y2SiO5:Ce3+ particle growth during sol-gel preparation.JOURNAL OF RARE EARTHS,28(4),504-508.
MLA Li Xiujuan,et al."Y2SiO5:Ce3+ particle growth during sol-gel preparation".JOURNAL OF RARE EARTHS 28.4(2010):504-508.
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