کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5397576 1505872 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Divalent Europium doped CaF2 and BaF2 nanocrystals from ionic liquids
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Divalent Europium doped CaF2 and BaF2 nanocrystals from ionic liquids
چکیده انگلیسی
A new, facile and quick synthesis method for Eu2+ doped the alkaline earth fluorides was developed using ionic liquids as solvent, precursor and capping agent. Reductive atmosphere and very high temperatures were avoided, while still attaining the desired structure, small particle sizes and divalent oxidation state of the lanthanide. This opens the door for the development of new Ln2+ doped nanomaterials. The successful Eu2+ incorporation was proven by optical spectroscopic measurements which showed the spin and parity allowed f-d transitions of Eu2+ in CaF2:Eu2+/BaF2:Eu2+. 4f7-4f7 transitions could be observed at low temperatures (7 K).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 189, September 2017, Pages 2-8
نویسندگان
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