کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1613586 | 1516319 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surfactant-assisted synthesis and luminescent properties of Gd2O3:Eu3+ core-shell microspheres
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Homogeneous and monodisperse Gd2O3:Eu3+ core-shell mirospheres have been successfully synthesized via a solvothermal method with polyvinylpyrrolidone (PVP) as surfactant, followed by a subsequent calcination process. The as-prepared products were characterized by various methods, including X-ray diffraction (XRD), Fourier Transform Infrared (FT-IR), scanning electron microscopy (SEM), energy-dispersive spectrometer (EDS), trans-mission electron microscopy (TEM), selected area electron diffraction (SAED), high resolution transmission electron microscopy (HRTEM), and photoluminescence spectra (PL). The results show that the obtained Gd2O3:Eu3+ mirospheres with a core-shell structure are uniform in size and distribution, and they have diameters of â¼350Â nm, the core diameters of â¼150Â nm, and the shell thicknesses of â¼45Â nm. Under ultraviolet (UV) excitation, the corresponding Gd2O3:Eu3+ products exhibit strong red emission corresponding to the 5D07F2 transition of the Eu3+ ions, which might find potential applications in the fields such as light-emitting phosphors, advanced flat panel displays, or biological labeling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 574, 15 October 2013, Pages 310-315
Journal: Journal of Alloys and Compounds - Volume 574, 15 October 2013, Pages 310-315
نویسندگان
Jing Huang, Yanhua Song, Guowei Wang, Ye Sheng, Keyan Zheng, Hongbo Li, Hongguang Zhang, Qisheng Huo, Xuechun Xu, Haifeng Zou,