کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10653717 | 1002907 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and upconversion fluorescence properties of Er3+/Yb3+-codoped oxychloride lead-germanium-bismuth glass
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Structural and infrared-to-visible upconversion fluorescence properties of Er3+/Yb3+-codoped oxychloride lead-germanium-bismuth glass have been studied. The Raman spectrum investigation indicates that PbCl2 plays an important role in the formation of glass network, and has an important influence on the upconversion luminescence owing to lower phonon energy. Intense green and red emissions centered at 525, 546, and 657Â nm, corresponding to the transitions 2H11/2â4I15/2, 4S3/2â4I15/2, and 4F9/2â4I15/2, respectively, were observed at room temperature. The quadratic dependence of the 525, 546, and 657Â nm emissions on excitation power indicates that a two-photon absorption process occurs under 975Â nm excitation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 133, Issue 6, February 2005, Pages 357-361
Journal: Solid State Communications - Volume 133, Issue 6, February 2005, Pages 357-361
نویسندگان
Hongtao Sun, Liyan Zhang, Shilong Zhao, Junjie Zhang, Chunlei Yu, Dongbing He, Zhongchao Duan, Lili Hu, Zhonghong Jiang,