材料科学
聚甲基丙烯酸甲酯
甲基丙烯酸甲酯
晶体管
阈值电压
聚合物混合物
场效应晶体管
有机场效应晶体管
化学工程
图层(电子)
光电子学
电压
聚合物
高分子化学
复合材料
聚合
电气工程
共聚物
工程类
作者
Loïg Kergoat,Nicolas Battaglini,L. Miozzo,Benoı̂t Piro,Minh‐Chau Pham,Abderrahim Yassar,Gilles Horowitz
标识
DOI:10.1016/j.orgel.2011.04.006
摘要
Poly(3-hexylthiophene)/poly(methyl methacrylate) (P3HT/PMMA) blends were used as the semiconducting layer in water-gated organic field-effect transistors (OFETs), which resulted in improving the electrical performance of the previously reported devices with pure P3HT. Topographic investigations by atomic force microscopy carried out on blends with various PMMA to P3HT ratio reveal a lateral phase separation of the two components. All transistors operate at very low voltage (below 1 V), with a threshold voltage ranging form 0.3 to 0.5 V. An optimum of the composition of the blend is found with 70% of PMMA, leading to a maximum on/off current ratio and a mobility comparable to that of pure P3HT.
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