کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1461363 | 989618 | 2014 | 6 صفحه PDF | دانلود رایگان |

Cubic Y2O3:Eu3+ nanoparticles with a size about 32 nm were synthesized using a facile hydrothermal method followed by an annealing process. As expected, the Y2O3:Eu3+ nanoparticles had a broad Eu–O excitation band ranging from 200 nm to 285 nm peaking at about 260 nm. The Y2O3:Eu3+ nanoparticles were then used to fabricate the inorganic–organic hybrid nanostructures with thenoyltrifluoroacetone (TTA). The Y2O3:Eu3+–TTA hybrid nanostructures exhibited a new strong excitation band ranging from 280 nm to 390 nm peaking at about 368 nm. This new excitation band was attributed to the energy transfer mechanism of the Y2O3:Eu3+–TTA hybrid system. It is interesting to note that this energy transfer mechanism had a close interaction with the Eu–O excitation of Y2O3:Eu3+ nanoparticles. The phase structures, chemical bonding information, microstructural characteristics and luminescence properties were investigated.
Journal: Ceramics International - Volume 40, Issue 2, March 2014, Pages 3117–3122