高拉伸高迁移率半导体纳米纤维共混薄膜应用于完全可拉伸有机晶体管  

Highly stretchable and high-mobility simiconducting nanofibrous blend films for fully stretchable organic transistors

作　　者：邬福明 刘忆旋 张鋆 李湘湘 杨辉 胡文平 Fuming Wu;Yixuan Liu;Jun Zhang;Xiangxiang Li;Hui Yang;Wenping Hu(Tianjin Key Laboratory of Molecular Optoelectronic Science,Department of Chemistry,School of Science,Tianjin University,Tianjin 300072,China)

机构地区：[1]Tianjin Key Laboratory of Molecular Optoelectronic Science,Department of Chemistry,School of Science,Tianjin University,Tianjin 300072,China

出　　处：《Science China Materials》2023年第5期1891-1898,共8页中国科学（材料科学（英文版）

基　　金：supported by the Ministry of Science and Technology of China(2018YFA0703200);the National Natural Science Foundation of China(51973154);the Natural Science Foundation of Tianjin(20JCZDJC00680)。

摘　　要：可拉伸有机场效应晶体管(OFETs)是有机集成电路和可穿戴生物传感器的基本组成部分.可拉伸有机半导体是实现高迁移率可拉伸OFETs的核心材料.目前实现高迁移率高拉伸聚合物半导体仍面临挑战.在此,我们通过混合聚合物半导体和弹性体,制备了高迁移率可拉伸的半导体共混薄膜.通过纳米限域效应,聚合物形成独特的纳米纤维.半导体薄膜具有低结晶度和高聚集度,因此该纤维共混薄膜具有高迁移率和高拉伸性.我们制备的完全可拉伸的有机晶体管在0%和100%应变下空穴迁移率分别为2.74和2.53 m^(2)V^(-1)s^(-1).即使在150%应变下,可拉伸晶体管的迁移率也高达1.57 cm^(2)V^(-1)s^(-1).可拉伸晶体管在30%应变下的1000个拉伸/释放周期中表现出了高的机械鲁棒性.Stretchable organic field-effect transistors(OFETs)are fundamental components of organic integrated circuits and wearable biosensors.Stretchable organic semiconductors are core materials to realize high-mobility stretchable OFETs.Achieving polymer semiconductors with both high mobility and high stretchability is an urgent challenge.In this work,high-mobility stretchable semiconducting blend films were prepared by blending a polymer semiconductor with an elastomer.The polymer forms unique nanofibers through the nanoconfinement effect.The as-prepared blend films have low crystallinity and high aggregation degree,resulting in high stretchability and high mobility.Remarkably,the fully stretchable organic transistors exhibit hole maximum mobilities of 2.74 and 2.53 cm^(2) V^(−1) s^(−1) at 0%and 100%strain,respectively.Even at 150%strain,stretchable transistors have a maximum mobility of 1.57 cm^(2) V^(−1) s^(−1).The stretchable transistors show high mechanical robustness during 1000 stretching-releasing cycles at 30%strain.

关 键 词：HIGH-MOBILITY stretchable semiconductors NANOFIBERS organic transistors 

分 类 号：TB383.2[一般工业技术—材料科学与工程] TN386[电子电信—物理电子学]