Home > Papers

 
 
Photoluminescent and electroluminescent properties of a novel europium(III) complex involving electron-transporting functional groups
Li Yu 1 #,Wang Yafei 2,Zhu Weiguo 2 *
1.Department of Chemistry, Xiangtan University, HuNan XiangTan 411105
2.Department of Chemistry, Xiangtan University
*Correspondence author
#Submitted by
Subject:
Funding: the New Teacher Fund and specialized Research Fund for the Doctoral Program of Higher Education(No.200805301013 and 20094301110004), Support from the National Natural Science Foundation of China (No.20872124 and 21172187)
Opened online:16 January 2012
Accepted by: none
Citation: Li Yu,Wang Yafei,Zhu Weiguo.Photoluminescent and electroluminescent properties of a novel europium(III) complex involving electron-transporting functional groups[OL]. [16 January 2012] http://en.paper.edu.cn/en_releasepaper/content/4459065
 
 
A novel tris(dibenzoylmethanato)[5-(2-(4-tert-butylbenzenyl)-5-benzenyl-1,3,4-oxadiazole -4’)-1,10-phenanthroline]europium(III) [Eu(DBM)3(BuOXD-Phen)] containing an electron-transport- ing oxadiazole functionalized phenanthroline, was synthesized and characterized. Its UV-vis absorption and photoluminescence, as well as the electroluminescence in polymer light-emitting devices (PLEDs) were investigated. The double-layer PLEDs with a configuration of ITO/PEDOT:PSS (50 nm)/PVK (40 nm)/PFO:PBD (30%):Eu(DBM)3(BuOXDPhen) (1-8 wt %) (80 nm)/Ba (4 nm)/Al (150 nm) were fabricated. Saturated red europium(III) ion emission, based on the 5D0→7F2 transition, is centered at a wavelength of 614 nm with a full width at half maximum (FWHM) of 10 nm. The highest external quantum efficiency of 1.26% photons per electron at current density of 0.63 mA/cm2, with maximum brightness of 61.2 cd/m2 at 144.7 mA/cm2, was achieved in the double-layer PLEDs. The results indicate that an introduction of oxadiazole groups into phenanthroline ligand can improve the performance of its europium complex doped PLEDs.
Keywords:Europium(III) complex; Oxadiazole; Electroluminescence; Polymer light-emitting devices
 
 
 

For this paper

  • PDF (0B)
  • ● Revision 0   
  • ● Print this paper
  • ● Recommend this paper to a friend
  • ● Add to my favorite list

    Saved Papers

    Please enter a name for this paper to be shown in your personalized Saved Papers list

Tags

Add yours

Related Papers

Statistics

PDF Downloaded 326
Bookmarked 0
Recommend 6
Comments Array
Submit your papers