Organic thin-film transistors based on solution-processable benzodithiophene dimers modified with hexyl groups

被引：0
|
作者：
Hirota, Takeshi [1 ]
Toake, Hitoshi [1 ]
Osuga, Hideji [2 ]
Uno, Kazuyuki [1 ]
Tanaka, Ichiro [1 ]
机构：
[1] Wakayama Univ, Dept Appl Phys, Wakayama 6408510, Japan
[2] Wakayama Univ, Dept Chem, Wakayama 6408510, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2017年 / 56卷 / 04期
关键词：
FIELD-EFFECT TRANSISTORS; HIGH-PERFORMANCE; HIGH-MOBILITY; PASSIVATION LAYERS; DIELECTRICS; PHASE;
D O I：
10.7567/JJAP.56.048002
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Benzodithiophene dimers modified with hexyl groups (2C(6)-BDT-dimer) were investigated as solution-processable organic semiconductors for organic thin-film transistors (OTFTs). Since 2C(6)-BDT-dimer crystals have an anisotropic shape, flow coating was adopted to grow polycrystalline films. The flow-coated films were inferior to the vacuum-evaporated ones in terms of their crystallinity estimated from X-ray diffraction data. However, the hole mobility of the OTFTs with the flow-coated films, which was 1.7 cm(2)V(-1)s(-1) at maximum, was higher than that of the OTFTs with vacuum-evaporated films because the one-dimensional thin crystals of the flow-coated films were aligned in the flow-coating direction. (C) 2017 The Japan Society of Applied Physics
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页数：3
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