2-(2-Methoxyphenyl)-1,3-dimethyl-1H-benzoimidazol-3-ium Iodide as a New Air-Stable n-Type Dopant for Vacuum-Processed Organic Semiconductor Thin Films

被引:138
作者
Wei, Peng [1 ]
Menke, Torben [2 ]
Naab, Benjamin D. [1 ]
Leo, Karl [2 ]
Riede, Moritz [2 ]
Bao, Zhenan [1 ]
机构
[1] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA
[2] Tech Univ Dresden, Inst Angew Photophys, D-01069 Dresden, Germany
关键词
LIGHT-EMITTING-DIODES; ELECTRONIC MATERIALS; TRANSPORT MATERIAL; PYRONIN-B; CONDUCTIVITY; DEVICES; PHTHALOCYANINE; PHOTOEMISSION; ENHANCEMENT; DIANHYDRIDE;
D O I
10.1021/ja211382x
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
2-(2-Methoxyphenyl)-1,3-dimethyl-1H-benzoimidazol-3-ium iodide (o-MeO-DMBI-I) was synthesized and employed as a strong n-type dopant for fullerene C-60, a well-known n-channel semiconductor. The coevaporated thin films showed a maximum conductivity of 5.5 S/cm at a doping concentration of 8.0 wt% (14 mol %), which is the highest value reported to date for molecular n-type conductors, o-MeO-DMBI-I can be stored and handled in air for extended periods without degradation and is thus promising for various organic electronic devices.
引用
收藏
页码:3999 / 4002
页数:4
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