کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1880965 | 1533442 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of the trap state of Sr2MgSi2O7: Eu2+, Dy3+ phosphor and decay process
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigation of the trap state of Sr2MgSi2O7: Eu2+, Dy3+ phosphor and decay process Investigation of the trap state of Sr2MgSi2O7: Eu2+, Dy3+ phosphor and decay process](/preview/png/1880965.png)
چکیده انگلیسی
The thermoluminescence glow curves of Sr2MgSi2O7: Eu2+, Dy3+ phosphor were measured after various delay times. A single trap center is confirmed that conforms to a kinetics model with order greater than 1, leading to a suppression of TL intensity and a high temperature shift of the TL peak with longer delay times. A constant trap depth supports this phenomenon. Further, the decay curve of the afterglow and the change in initial trapped carrier concentration can be fitted using general-order kinetics and the fitting results show that the afterglow is close to a second-order kinetics process, which implies that most of the released carriers are retrapped.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 46, Issues 6â7, JuneâJuly 2011, Pages 591-594
Journal: Radiation Measurements - Volume 46, Issues 6â7, JuneâJuly 2011, Pages 591-594
نویسندگان
Haoyi Wu, Yihua Hu, Xiaojuan Wang,