典型文献
Synthesis and luminescent properties of Ba3Y3.88Gd0.12O9∶Eu3+phosphors with enhanced red emission
文献摘要：
In this work,the Gd3+/Eu3+activated Ba3Y4O9(BYO)phosphors were successfully synthesized via coprecipitation method at 1400℃.The precursor composition,crystal structure stability,microscopic morphology,photoluminescence(PL)/photoluminescence excitation(PLE)spectra and fluorescence attenuation analysis of the phosphors are discussed in detail.The chemical composition of the precursor was determined by Fourier transform infrared spectroscopy(FT-IR)and thermogravimetry(TG)analysis;According to field emission-scanning electron microscopy(FE-SEM)analysis,it is found that the particle size of phosphor is uniform and the agglomeration is few.According to PL/PLE spectra analysis,Ba3Y3.28Eu0.6Gd0.12O9 phosphors has the strongest excitation band at 260 nm and the strongest emission band at 614 nm,and the fluorescence intensity of Ba3Y3.28Eu0.6Gd0.12O9 is higher than that of Ba3Y3.4Eu0.6O9.The quenching concentration of Eu3+in Ba3Y3.88-4xEu4xGd0.12O9 phosphors is x=0.15 and the mechanism of quenching concentration of Eu3+is electric dipole-quadrupole type interactions.The lifetime value of Ba3Y3.88-4xEu4xGd0.12O9(x=0.15)phosphors is 0.686 ms and decreases with the in-crease of Eu3+content.In addition,the CIE chromaticity diagram of Ba3Y3.28Eu0.6Gd0.12O9 phosphors is(0.66,0.34).Finally,the lamp beads assembled with Ba3Y3.28Eu0.6Gd0.12O9 phosphors have an ideal lu-minous effect.Therefore,the Ba3Y3.88-4xEu4xGd0.12O9 phosphors designed in this work may hopefully meet the requirements of various lighting and optical display applications.
文献关键词：
中图分类号：
作者姓名：
Guiyuan Liu;Bin Liu;Jinkai Li;Zongming Liu
作者机构：
School of Materials Science and Engineering,University of Jinan,Jinan 250022,China
文献出处：
引用格式：
[1]Guiyuan Liu;Bin Liu;Jinkai Li;Zongming Liu-.Synthesis and luminescent properties of Ba3Y3.88Gd0.12O9∶Eu3+phosphors with enhanced red emission)[J].稀土学报（英文版）,2022(04):534-540
A类：
Ba3Y3,88Gd0,12O9,Eu3+phosphors,Eu3+activated,Ba3Y4O9,BYO,28Eu0,6Gd0,4Eu0,6O9,Eu3+in,4xEu4xGd0,Eu3+is,Eu3+content
B类：
Synthesis,luminescent,properties,enhanced,emission,In,this,work,Gd3+,were,successfully,synthesized,via,coprecipitation,method,precursor,composition,crystal,structure,stability,microscopic,morphology,photoluminescence,excitation,PLE,spectra,fluorescence,attenuation,analysis,discussed,detail,chemical,was,determined,by,Fourier,transform,infrared,spectroscopy,FT,thermogravimetry,According,field,scanning,electron,microscopy,FE,found,that,particle,uniform,agglomeration,few,has,strongest,band,intensity,higher,than,quenching,concentration,mechanism,electric,dipole,quadrupole,type,interactions,lifetime,value,ms,decreases,addition,CIE,chromaticity,diagram,Finally,lamp,beads,assembled,have,ideal,minous,effect,Therefore,designed,may,hopefully,meet,requirements,various,lighting,optical,display,applications
AB值：
0.382235
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