caa a22 4500 445368934 CHVBK 20180317142940.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s00340-010-4304-3 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4304-3 Synthesis and photoluminescence properties ofnovel red-emitting phosphors for light emitting diodes [Elektronische Daten] [Q. Li, J. Huang, D. Chen] The novel red-emitting phosphors K2Ba1−x (MoO4)2: xEu3+(0.02≤x≤0.15) phosphors were prepared by solid-state reaction and their crystal structures, photo luminescent characteristics were investigated. The results show that all samples can be efficiently excited by UV (396nm) and blue (466nm) light, which are coupled well with the characteristic emission from UVLED and blue LED, respectively. Their emission spectra show intense red emission at 616 nm with line spectra due to the 5D0-7F2 transition of Eu3+. The XRD and photoluminescence experimental results indicate that the K2Ba(MoO4)2: Eu3+ phosphor crystallization optimum annealing temperature occurs at about 800°C. The optimum doping concentration of Eu3+ is 0.10 mol, and the critical transfer distance (Rc) among Eu3+ ions is calculated to be about 11.126 Å. The approach to charge compensation was used: Ba2+→Eu3++X− (X=F, Cl, Br), and the charge compensation influence on the luminescent intensity of phosphors is investigated. Springer-Verlag, 2010 Li Q. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission & Ministry of Education, College of Chemistry and Material Science, South-Central University for Nationalities, 430074, Wuhan, Hubei, P.R. China aut Huang J. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission & Ministry of Education, College of Chemistry and Material Science, South-Central University for Nationalities, 430074, Wuhan, Hubei, P.R. China aut Chen D. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission & Ministry of Education, College of Chemistry and Material Science, South-Central University for Nationalities, 430074, Wuhan, Hubei, P.R. China aut Applied Physics B Springer-Verlag 103/2(2011-05-01), 521-526 0946-2171 103:2<521 2011 103 340 https://doi.org/10.1007/s00340-010-4304-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4304-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Q. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission & Ministry of Education, College of Chemistry and Material Science, South-Central University for Nationalities, 430074, Wuhan, Hubei, P.R. China aut NATIONALLICENCE 700 1- Huang J. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission & Ministry of Education, College of Chemistry and Material Science, South-Central University for Nationalities, 430074, Wuhan, Hubei, P.R. China aut NATIONALLICENCE 700 1- Chen D. Key Laboratory of Catalysis and Material Science of the State Ethnic Affairs Commission & Ministry of Education, College of Chemistry and Material Science, South-Central University for Nationalities, 430074, Wuhan, Hubei, P.R. China aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 103/2(2011-05-01), 521-526 0946-2171 103:2<521 2011 103 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer