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Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra

หน่วยงาน Nanyang Technological University, Singapore

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ชื่อเรื่อง : Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra
นักวิจัย : Shen, Yiqiang , Chen, Rui , Xiao, Fen , Sun, Handong , Tok, Alfred Iing Yoong , Dong, Zhili
คำค้น : DRNTU::Science::Chemistry
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2553
อ้างอิง : 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. , 0022-4596 , http://hdl.handle.net/10220/8827 , http://dx.doi.org/10.1016/j.jssc.2010.10.025
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of solid state chemistry
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

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.

บรรณานุกรม :
Shen, Yiqiang , Chen, Rui , Xiao, Fen , Sun, Handong , Tok, Alfred Iing Yoong , Dong, Zhili . (2553). Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Shen, Yiqiang , Chen, Rui , Xiao, Fen , Sun, Handong , Tok, Alfred Iing Yoong , Dong, Zhili . 2553. "Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Shen, Yiqiang , Chen, Rui , Xiao, Fen , Sun, Handong , Tok, Alfred Iing Yoong , Dong, Zhili . "Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2553. Print.
Shen, Yiqiang , Chen, Rui , Xiao, Fen , Sun, Handong , Tok, Alfred Iing Yoong , Dong, Zhili . Study of the cation distributions in Eu doped Sr2Y8(SiO4)6O2 by X-ray diffraction and photoluminescent spectra. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2553.