A blue-emitting organic electroluminescent device using a novel emitting amorphous molecular material

被引:66
作者
Noda, T [1 ]
Shirota, Y [1 ]
机构
[1] Osaka Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan
关键词
amorphous molecular material; organic electroluminescent device; blue-emitting material;
D O I
10.1016/S0022-2313(99)00583-9
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A multilayer blue-emitting organic electroluminescent (EL) device using 5,5'-bis(dimzsityl-boryl)-2,2'-bithiophene (BMB-2T) as a blue-emitting amorphous molecular material and 4.4'.4 "-tris(3-methylphenylphenylamino) triphenylamine (m-MTDATA) and tri(o-terphenyl-4-yl)amine (o-TTA) as hole-transporting amorphous molecular materials was fabricated. The multilayer EL device, ITO/m-MTDATA(300 Angstrom)/o-TTA(200 Angstrom)/BMB-2T(200 Angstrom)MgAg, emitted bright-blue light resulting from BMB-2T, exhibiting relatively very high performances with a maximum luminance of 1700 ed m(-2) at a driving voltage of 17 V and luminous and external quantum efficiencies of 0.08 lm W-1 and 0.24%, respectively, at a luminance of 300 ed m(-2). (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1168 / 1170
页数:3
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