PYRAZOLINE DIMERS FOR HOLE TRANSPORT MATERIALS IN ORGANIC ELECTROLUMINESCENT DEVICES

被引:76
|
作者
SANO, T
FUJII, T
NISHIO, Y
HAMADA, Y
SHIBATA, K
KUROKI, K
机构
[1] New Materials Research Center, SANYO Electric Co, Osaka, 573
关键词
ELECTROLUMINESCENCE; PYRAZOLINE DIMER; ORGANIC MATERIALS; MULTILAYER STRUCTURE; CHARGE INJECTION; HOLE TRANSPORT MATERIAL;
D O I
10.1143/JJAP.34.3124
中图分类号
O59 [应用物理学];
学科分类号
摘要
Dimer structures of pyrazoline derivatives were synthesized in order to obtain stable films and applied to electroluminescent (EL) devices as hole transport material. A device structure of [indium-tin-oxide (ITO)/hole transport layer (HTL)/emitting layer (EML)/MgIn] was employed. When pyrazoline dimer (PYR-D3) and tris(8-hydroxyquinolinate)aluminum (Alq(3)) were used as HTL and EML, respectively, the EL device showed a maximum luminance of 12400 cd/m(2) at 11 V and a maximum luminous efficiency of 1.5 lm/W at 250 cd/m(2). This showed that pyrazoline dimers functioned well as hole transport layers.
引用
收藏
页码:3124 / 3127
页数:4
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