Environmentally-friendly fabrication of organic field-effect transistors based on small molecule/polymer blend prepared by electrostatic spray deposition
Environmentally-friendly fabrication of organic field-effect transistors based on small molecule/polymer blend prepared by electrostatic spray deposition
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DOI：
10.7567/1347-4065/aaf698
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发表时间：
2019-01
影响因子：
1.5
通讯作者：
S. Obata;Yuta Miyazawa;J. Yamanaka;N. Onojima
中科院分区：
文献类型：
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作者：
S. Obata;Yuta Miyazawa;J. Yamanaka;N. Onojima
采用醋酸正丁酯等环保溶剂制备的小分子/聚合物共混溶液，通过静电喷雾沉积法制备了大面积有机结晶薄膜。 6,13-双(三异丙基甲硅烷基乙炔基)并五苯用作小分子半导体，聚甲基丙烯酸甲酯用作聚合物绝缘体。由于使用非芳香族和无卤溶剂制备的共混膜中的快速相分离，具有明确界面的有机场效应晶体管（OFET）表现出优异的电荷载流子传输性能。这项研究将有助于通过简便的一步印刷工艺实现高性能 OFET 的绿色制造。
Large-area organic crystalline films were prepared by electrostatic spray deposition of small molecule/polymer blend solutions prepared with environmentally-friendly solvents such as n-butyl acetate. 6,13-bis(triisopropylsilylethynyl) pentacene was used as a small molecule semiconductor, and poly(methyl methacrylate) as a polymer insulator. Due to rapid phase-separation in the blend film prepared by using the non-aromatic and halogen-free solvents, organic field-effect transistors (OFETs) with the well-defined interface exhibited superior charge-carrier transport properties. This study will contribute to green manufacturing of high-performance OFETs by a facile one-step printing process.