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利用化学气相沉积法生长的高性能的层状石墨烯,通过转移和图案化后用作电极,制备了底接触的并五苯有机薄膜晶体管(OTFTs).原子力显微镜观察发现,石墨烯电极的厚度比一般的金电极薄的多,所以石墨烯电极厚度对并五苯晶粒的生长影响不大.电学性能研究得到器件的输出和转移曲线、开关电流比、阈值电压、场效应迁移率.转移曲线的关态电流约为10-9 A,电流的开关比超过103.基于底接触的并五苯OTFTs的最大场效应迁移率约2×10-2 cm2·V-1·s-1.

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