کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5402899 | 1392745 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of upconversion luminescence in Tm3+/Er3+/Yb3+-codoped glass ceramic containing LiYF4 nanocrystals
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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: Enhancement of upconversion luminescence in Tm3+/Er3+/Yb3+-codoped glass ceramic containing LiYF4 nanocrystals Enhancement of upconversion luminescence in Tm3+/Er3+/Yb3+-codoped glass ceramic containing LiYF4 nanocrystals](/preview/png/5402899.png)
چکیده انگلیسی
A transparent Er3+-Tm3+-Yb3+ tri-doped oxyfluoride glass ceramics containing LiYF4 nanocrystals were prepared. Under 980Â nm laser diode (LD) pumping, intensive red, green and blue upconversion (UC) was obtained. The blue, green, and red UC radiations correspond to the transitions 1G4â3H6 of Tm3+, 2H11/2/4S3/2â4I15/2, and 4F9/2â4I15/2 of Er3+ ions, respectively. This is similar to that in Tm3+-Yb3+ and/or Er3+-Yb3+ co-doped glass ceramics. However, the blue UC radiations of the Er3+-Yb3+ co-doped glass ceramics is two-photon process due to cooperative energy transfer. The UC mechanisms were proposed based on spectral, kinetic, and pump power dependence analyses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 129, Issue 11, November 2009, Pages 1266-1270
Journal: Journal of Luminescence - Volume 129, Issue 11, November 2009, Pages 1266-1270
نویسندگان
Degang Deng, Shiqing Xu, Shilong Zhao, Chenxia Li, Huanping Wang, Haidong Ju,