کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5403356 | 1392758 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Luminescence property of Ce3+-doped silica decorated with S2â and Clâ anions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Luminescence property of Ce3+-doped silica decorated with S2â and Clâ anions Luminescence property of Ce3+-doped silica decorated with S2â and Clâ anions](/preview/png/5403356.png)
چکیده انگلیسی
Ce3+-doped silica was synthesized by sol-gel technique and was further decorated with S2â and Clâ anions through chemical exchange in controlled ambient at elevated temperature. The structure and optical property of samples were examined by X-ray diffraction spectrum, XPS pattern, reflection pattern, and photoluminescence patterns. There is a broad luminescence band at 445 nm under the excitation at 320 nm in the Ce3+-doped silica heat-treated in air at 1000 °C. The heat-treatment of the sample in vacuum at 800 °C can increase the intensity of luminescence but have no effect on the wavelength of luminescence. The decoration of S2â and Clâ anions cannot only increase the luminescent intensity but also shift the luminescent wavelength to shorter wavelength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 126, Issue 2, October 2007, Pages 475-480
Journal: Journal of Luminescence - Volume 126, Issue 2, October 2007, Pages 475-480
نویسندگان
G.Q. Xu, Z.X. Zheng, W.M. Tang, Y.C. Wu,