کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5402258 1505928 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Up-conversion luminescence saturation under pulsed excitation of erbium-doped, SiO2-TiO2 sol-gel powders
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Up-conversion luminescence saturation under pulsed excitation of erbium-doped, SiO2-TiO2 sol-gel powders
چکیده انگلیسی
The intensity of erbium up-conversion luminescence could be limited by a saturation effect due to increased pump power. We studied the luminescence saturation of the 550 nm emission on erbium-doped, SiO2-TiO2 sol-gel powders under pulsed excitation at 979 and 1532 nm. From the latter, the up-converted luminescence intensity decreased with increasing excitation power, whereas no saturation was observed at 979 nm excitation. We proposed that the saturation effect is determined by the pump power, the erbium content and the lifetime of the corresponding first excited states at different pumping schemes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 130, Issue 12, December 2010, Pages 2356-2361
نویسندگان
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