Ba^(2+)doped Y_(0.75) Bi_(0.15) Sm_(0.10) VO_(4) were synthesized using a conventional sona-szate reaction route.X-ray diffraction and fluorescence spectrophotometer were used to investigate the effects of doping Ba^(...Ba^(2+)doped Y_(0.75) Bi_(0.15) Sm_(0.10) VO_(4) were synthesized using a conventional sona-szate reaction route.X-ray diffraction and fluorescence spectrophotometer were used to investigate the effects of doping Ba^(2+)ions on the crystal structure and luminescence properties of the samples.The XRD results indicated that the crystal structure type of the host had not been changed by doping Ba^(2+)-ions.The photoluminescent intensity was enhanced by Ba^(2+)doped Y_(0.75) Bi_(0.15) Sm_(0.10) VO_(4) phosphors,and the related mechanism was discussed.展开更多
The Ba^(2+)-doped Sr_(2.4)Y_(0.2)Eu_(0.2)V_(2)O_(8)phosphors were synthesized by the conventional solid-state reaction.Upon excitation with 416 nm irradiation,the emission spectra for the Ba^(2+)-doped Sr_(2.4)Y_(0.2)...The Ba^(2+)-doped Sr_(2.4)Y_(0.2)Eu_(0.2)V_(2)O_(8)phosphors were synthesized by the conventional solid-state reaction.Upon excitation with 416 nm irradiation,the emission spectra for the Ba^(2+)-doped Sr_(2.4)Y_(0.2)Eu_(0.2)V_(2)O_(8)samples were composed of the well-known line locating at 595nm(^(5)D_(0)→^(7)F_(1)),619nm(^(5)D_(0)→^(7)F_(2)),652nm(^(5)D_(0)→^(7)F_(3)),and 700nm(^(5)D_(0)→^(7)F_(4))resulting from the emission of Eu^(3+)due to transition of^(5)D_(0)→^(7)F_(J).The emission intensity increased and then decreased with increasing Ba content,and the maximum emission intensity was achieved when x was 0.15.These results indicated that the Ba dopant acts as one sensitizer and enhanced the photoluminescence intensity.展开更多
基金Supported by Anhui Provincial Natural Science Foundation(1308085MA04)the Higher Educational Natural Science Foundation of Anhui Province(KJ2013A031)+2 种基金Anhui University Scientific Research Fund(KYXL2013009)“211 Project”of Anhui University(SZJYKC2013020)National Training Programs of Innovation and Entrepreneurship for Undergraduates(201410357005)
文摘Ba^(2+)doped Y_(0.75) Bi_(0.15) Sm_(0.10) VO_(4) were synthesized using a conventional sona-szate reaction route.X-ray diffraction and fluorescence spectrophotometer were used to investigate the effects of doping Ba^(2+)ions on the crystal structure and luminescence properties of the samples.The XRD results indicated that the crystal structure type of the host had not been changed by doping Ba^(2+)-ions.The photoluminescent intensity was enhanced by Ba^(2+)doped Y_(0.75) Bi_(0.15) Sm_(0.10) VO_(4) phosphors,and the related mechanism was discussed.
基金Supported by the National Natural Science Foundation of China(11204001,11174004)Anhui Provincial Natural Science Foundation(1208085QA07,1308085MA04)+2 种基金the Higher Educational Natural Science Foundation of Anhui Province(KJ2013A031)Anhui University Scientific Research Fund(201410357005,KYXL2013009)“211 Project”of Anhui University(SZJYKC2013020,XJGXKC1401)
文摘The Ba^(2+)-doped Sr_(2.4)Y_(0.2)Eu_(0.2)V_(2)O_(8)phosphors were synthesized by the conventional solid-state reaction.Upon excitation with 416 nm irradiation,the emission spectra for the Ba^(2+)-doped Sr_(2.4)Y_(0.2)Eu_(0.2)V_(2)O_(8)samples were composed of the well-known line locating at 595nm(^(5)D_(0)→^(7)F_(1)),619nm(^(5)D_(0)→^(7)F_(2)),652nm(^(5)D_(0)→^(7)F_(3)),and 700nm(^(5)D_(0)→^(7)F_(4))resulting from the emission of Eu^(3+)due to transition of^(5)D_(0)→^(7)F_(J).The emission intensity increased and then decreased with increasing Ba content,and the maximum emission intensity was achieved when x was 0.15.These results indicated that the Ba dopant acts as one sensitizer and enhanced the photoluminescence intensity.
