کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5399694 1505907 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Luminescent properties of hybrid nanostructures of ion-exchanged Y2O3:Eu3+ nanoparticles with 2-thenoyltrifluoroacetone ligands
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Luminescent properties of hybrid nanostructures of ion-exchanged Y2O3:Eu3+ nanoparticles with 2-thenoyltrifluoroacetone ligands
چکیده انگلیسی
In this work, Y2O3 precursors were first prepared by a hydrothermal method, and then Eu3+ ions were doped into the Y2O3 precursors by an ion-exchange process. After annealing the precursors, the Eu3+-doped Y2O3 (Y2O3:Eu3+) nanoparticles were successfully obtained. The Y2O3:Eu3+ nanoparticles were then capped with 2-thenoyltrifluoroacetone (TTA) ligands to form the Y2O3:Eu3+-TTA hybrid nanostructures. It has been shown that TTA ligands can effectively sensitize the luminescence of Y2O3:Eu3+ nanoparticles. Greatly extended excitation band from 300 nm to 400 nm was observed for the Y2O3:Eu3+-TTA hybrid nanostructures. X-ray diffraction technique, Fourier transform infrared spectroscopy, scanning electron microscope, transmission electron microscopy and photoluminescence spectroscopy were used to characterize the hybrid nanostructures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 153, September 2014, Pages 259-263
نویسندگان
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