کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5402731 | 1392740 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly luminescent red light phosphor CaTiO3:Eu3+ under near-ultraviolet excitation
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The Eu-doped CaTiO3 particles with a good crystallinity were prepared via sol-gel method. The phosphors showed a strong red emission corresponding to 5D0â7F2 (618 nm) of Eu3+ under the near-ultraviolet excitation (400 nm). X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), photoluminescent (PL) analysis and Brunauer-Emmett-Teller (BET) specific surface area measurement were utilized to characterize the CaTiO3:Eu3+ particles. The concentration quenching and thermal quenching of the samples were discussed as well. The optimal concentration and the calcination temperature were 16 mol% of Eu3+ and 1400 °C for these phosphors, and the possible reason was discussed as well. CaTiO3:Eu3+ is a promising red phosphor under near-ultraviolet excitation for various applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 130, Issue 2, February 2010, Pages 231-235
Journal: Journal of Luminescence - Volume 130, Issue 2, February 2010, Pages 231-235
نویسندگان
Jiapeng Fu, Qinghong Zhang, Yaogang Li, Hongzhi Wang,