【摘要】 研究了具有OTS/SiO2双绝缘层结构及MoO3/Al电极结构的有机薄膜晶体管.器件是以热生长的SiO2作为有机薄膜晶体管的栅绝缘层,酞菁铜作为有源层的.OTS/SiO2双绝缘层的结构提高了器件的场效应迁移率和开关电流比,降低了阈值电压.实验表明在同样的栅极电压下,具有MoO3/Al电极的器件和金电极的器件有着相似的源漏输出电流.结果显示具有OTS/SiO2双绝缘层及MoO3/Al电极结构的器件能有效改进有机薄膜晶体管的性能.更多还原

【Abstract】 An organic thin-film transistor(OTFT)with an OTS/SiO2 bilayer gate insulator and a MoO3/Al electrode configuration between gate insulator and source/drain electrodes has been investigated.A thermally grown SiO2 layer is used as the OTFT gate dielectric and copper phthalocyanine(CuPc)is used as an active layer.This OTS/SiO2 bilayer gate insulator configuration increases the field-effect mobility,reduces the threshold voltage,and improves the on/off ratio simultaneously.The device with a MoO3/Al electrode has shown similar Ids compared to the device with an Au electrode at the same gate voltage.Our results indicate that using a double-layer of electrodes and a double-layer of insulators is an effective way to improve OTFT performance.更多还原