Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/94955
Title: Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra
Authors: Shen, Yiqiang
Chen, Rui
Xiao, Fen
Sun, Handong
Dong, Zhili
Tok, Alfred Iing Yoong
Keywords: DRNTU::Science::Chemistry
Issue Date: 2010
Source: Shen, Y., Chen, R., Xiao, F., Sun, H., Tok, A., & Dong, Z. (2010). Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra. Journal of Solid State Chemistry, 183(12), 3093-3099.
Series/Report no.: Journal of solid state chemistry
Abstract: The crystal structure and photoluminescent properties of europium doped silicate Sr2Y8(SiO4)6O2:Eu3+ are reported. The Sr2Y8−xEux(SiO4)6O2 compounds have typical apatite crystal structures with the P63/m space group. The distributions of Eu3+ between the two crystallographic sites 4f and 6h in the apatite structure are investigated by the powder X-ray diffraction and Rietveld refinement. Results show that Eu3+ ions only occupy the 4f sites when the Eu doping concentration is low (x=0–0.5 in Sr2Y8−xEux(SiO4)6O2). However, in higher concentrations, Eu3+ ions begin to enter the 6h sites as well. The distributions of the Eu3+ are also reflected in photoluminescent spectra. The CIE coordinates for Sr2Y6Eu2(SiO4)6O2 are (0.63, 0.37), which is close to the pure red color.
URI: https://hdl.handle.net/10356/94955
http://hdl.handle.net/10220/8827
ISSN: 0022-4596
DOI: 10.1016/j.jssc.2010.10.025
Rights: © 2010 Elsevier Inc. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Solid State Chemistry, Elsevier Inc. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1016/j.jssc.2010.10.025 ].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles
SPMS Journal Articles

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