کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1500848 993361 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of Yb3+/Er3+ co-doped MnF2 nanocrystals with bright red up-converted fluorescence
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Synthesis of Yb3+/Er3+ co-doped MnF2 nanocrystals with bright red up-converted fluorescence
چکیده انگلیسی

MnF2 nanocrystals co-doped with Yb3+/Er3+ ions were synthesized via a polyethyleneimine (PEI)-based method. These nanocrystals exhibited unique red up-converted fluorescence at 660 nm under excitation at 970 nm, because Mn2+ ions in the host efficiently induced an energy transfer (4S3/2→4F9/2) of Er3+. Considering that the light of wavelength 600–1100 nm has a high penetration depth in tissues, such PEI-coated up-converted nanocrystals have the potential to be good candidates for deep tissue imaging.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 60, Issue 3, February 2009, Pages 190–193
نویسندگان
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