کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5397827 | 1505875 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of thermal quenching and abnormal thermal quenching in mixed valence Eu co-doped LaAlO3 phosphor
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Temperature dependent luminescence of mixed valence Eu co-doped LaAlO3 phosphors are deeply investigated in this work. Different temperature properties of Eu2+ and Eu3+ luminescence are observed as the phosphor excited by different incident light. Eu3+ luminescence shows normal thermal quenching when excited at 320Â nm and abnormal thermal quenching as the excitation light changed into 365Â nm, while Eu2+ luminescence exhibits a normal thermal quenching independent on the incident excitation lights. The origin of these novel normal/abnormal thermal quenching phenomena are analyzed and discussed by the excitation-emission processes in terms of the configuration coordinate model. The presented important experimental and analysis results give insights into the temperature properties of phosphors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 186, June 2017, Pages 72-76
Journal: Journal of Luminescence - Volume 186, June 2017, Pages 72-76
نویسندگان
Jingjing Chen, Yang Zhao, Zhiyong Mao, Dajian Wang, Lijian Bie,