کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5397696 | 1505878 | 2017 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave hydrothermal method and photoluminescence properties of Gd2Sn2O7: Eu3+ reddish orange phosphors
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microwave hydrothermal method and photoluminescence properties of Gd2Sn2O7: Eu3+ reddish orange phosphors Microwave hydrothermal method and photoluminescence properties of Gd2Sn2O7: Eu3+ reddish orange phosphors](/preview/png/5397696.png)
چکیده انگلیسی
Pyrochlore Gd2Sn2O7:Eu3+ (in brief GSO:Eu) nanoparticles have been prepared by the microwave hydrothermal method followed by further calcining treatment. The effects of pH value and Eu3+-doping concentration on the pure phase of the products are investigated. It is found that the pH value is a crucial step for the control of the pure phase of the GSO nanocrystals. All the products were systematically characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), energy dispersive X-ray spectra (EDS), photoluminescence (PL) spectra and decay curve. Under the 391Â nm excitation, intense reddish orange emission peak at 587Â nm corresponding to 5D0â7F1 transition of Eu3+ is observed for 7Â mol% GSO:Eu phosphor as the optimal doping concentration. The luminescence property indicates that the local symmetry of Eu3+ ion in GSO crystal lattice has inversion center of Gd3+ ion with D3d point group. The luminescence properties suggest that a brightly luminescent GSO:Eu phosphor with reddish orange light may be considered as an ideal optical material for the development of new optical display systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 183, March 2017, Pages 377-382
Journal: Journal of Luminescence - Volume 183, March 2017, Pages 377-382
نویسندگان
Jinsheng Liao, Liling Nie, Qi Wang, Suijun Liu, Junxiang Fu, He-Rui Wen,