caa a22 4500 445371919 CHVBK 20180317142950.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00340-010-4354-6 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4354-6 Synthesis and luminescent properties of hexagonal BaZnSiO4:Eu2+ phosphor [Elektronische Daten] [S.-S. Yao, L.-H. Xue, Y.-W. Yan] A green-emitting phosphor of hexagonal BaZnSiO4:Eu2+ was prepared by a combustion-assisted synthesis method and an efficient green emission from ultraviolet to visible light was observed. The luminescence and crystallinity were investigated by using luminescence spectrometry and X-ray diffractometry. In the hexagonal structure of BaZnSiO4:Eu2+ phosphor, Eu2+ ions occupy three different lattice sites by substitution for Ba2+ ions. Eu2+ ions on Ba (1) and Ba (2) sites gave emissions at about 505nm while Eu2+ ions on Ba (3) sites showed an emission band at 403 nm. The excitation spectrum is a broad band extending from 260 to 465 nm, which matches the emission of ultraviolet light-emitting diodes. The critical quenching concentration of Eu2+ in BaZnSiO4:Eu2+ phosphor is about 0.05 mol. The value of the critical transfer distance is calculated as 10.97 Å. The corresponding concentration quenching mechanism is verified to be the electric multipole-multipole interaction. The CIE coordinates of the optimized sample $\mathrm{Ba}_{0.95}\mathrm{ZnSiO}_{4}{:}\mathrm{Eu}_{0.05}^{2+}$ were calculated as (x,y)=(0.172,0.463). Springer-Verlag, 2011 Yao S.-S State Key Laboratory of Materials Processing and Die & Mould Technology, College of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China aut Xue L.-H State Key Laboratory of Materials Processing and Die & Mould Technology, College of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China aut Yan Y.-W State Key Laboratory of Materials Processing and Die & Mould Technology, College of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China aut Applied Physics B Springer-Verlag 102/3(2011-03-01), 705-709 0946-2171 102:3<705 2011 102 340 https://doi.org/10.1007/s00340-010-4354-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4354-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yao S.-S State Key Laboratory of Materials Processing and Die & Mould Technology, College of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China aut NATIONALLICENCE 700 1- Xue L.-H State Key Laboratory of Materials Processing and Die & Mould Technology, College of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China aut NATIONALLICENCE 700 1- Yan Y.-W State Key Laboratory of Materials Processing and Die & Mould Technology, College of Materials Science and Engineering, Huazhong University of Science & Technology, 430074, Wuhan, PR China aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/3(2011-03-01), 705-709 0946-2171 102:3<705 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer