有机薄膜晶体管以其成本低、柔性好、易加工等优点越来越受到人们的青睐,目前已广泛应用于低端器件.为了获得更实际的应用,OTFTs的性能还需进一步的提高和改善.文章中以酞菁铜(CuPc)为有机半导体材料,制备了双栅结构的有机薄膜晶体管,其阈值电压为-4.5 V,场效应迁移率0.025 cm2/V·s,开关电流比Ion/Ioff达到9.8×103,与单栅有机薄膜晶体管相比,双栅器件在更低的操作电压下获得了更大的输出电流,场效应迁移率更高,而且通过对两个栅压的调节,对导电沟道实现了更好的控制,器件性能有了较大的提高.
参考文献
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