کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1811327 | 1025592 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Down-conversion near infrared emission in Pr3+, Yb3+ co-doped Y2O3 transparent ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Down-conversion near infrared emission in Pr3+, Yb3+ co-doped Y2O3 transparent ceramics Down-conversion near infrared emission in Pr3+, Yb3+ co-doped Y2O3 transparent ceramics](/preview/png/1811327.png)
چکیده انگلیسی
Pr3+, Yb3+ co-doped Y2O3 transparent ceramics have been prepared by the solid state reaction and vacuum sintering. Down-conversion near infrared emission has been demonstrated upon a 482 nm excitation. The energy of the 482 nm blue photon was first absorbed by Pr3+ and then delivered to Yb3+. Possible energy transfer mechanisms from Pr3+ to Yb3+ have been discussed. Under the 482 nm excitation, the Pr4+–Yb2+ charge transfer state would not seriously influence the energy transfer process. The dominant one should be either the cooperative down-conversion or the two-step photon emission. The efficient down-conversion near infrared emission has potential application in enhancing the conversion efficiency of crystalline silicon solar cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 406, Issue 19, 1 October 2011, Pages 3588–3591
Journal: Physica B: Condensed Matter - Volume 406, Issue 19, 1 October 2011, Pages 3588–3591
نویسندگان
Guang-min Yang, Sheng-ming Zhou, Hui Lin, Hao Teng,