کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5404234 | 1392774 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Upconversion luminescence and kinetics in Er3+:YAlO3 under 652.2Â nm excitation
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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: Upconversion luminescence and kinetics in Er3+:YAlO3 under 652.2Â nm excitation Upconversion luminescence and kinetics in Er3+:YAlO3 under 652.2Â nm excitation](/preview/png/5404234.png)
چکیده انگلیسی
Ultraviolet and visible upconversion properties of Er3+ in YAlO3 were investigated following 652.2Â nm excitation of the multiples 4F9/2. The luminescence and excitation spectra were recorded. Ultraviolet (326-342 and 354-359Â nm), violet (405-420Â nm), blue (436-442Â nm) and green (525-575Â nm) upconversion and infrared downconversion luminescence were simultaneously observed. The intense green luminescence corresponds to the emissions from the thermal coupled 4S3/2 and 2H11/2 bands and 2G9/2 level. Energy transfer upconversion processes were proposed to explain the upconversion phenomena. The luminescence kinetics was discussed in detail by the analyses of fluorescence decay curves.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 124, Issue 2, June 2007, Pages 207-212
Journal: Journal of Luminescence - Volume 124, Issue 2, June 2007, Pages 207-212
نویسندگان
Haigui Yang, Zhenwen Dai, Zhiwei Sun,