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F4‐TCNQ as an Additive to Impart Stretchable Semiconductors with High Mobility and Stability
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2020-05-18 , DOI: 10.1002/aelm.202000251 Jaewan Mun 1 , Jiheong Kang 1, 2 , Yu Zheng 3 , Shaochuan Luo 4 , Yilei Wu 1 , Huaxin Gong 1 , Jian‐Cheng Lai 1, 4 , Hung‐Chin Wu 1 , Gi Xue 4 , Jeffrey B.‐H. Tok 1 , Zhenan Bao 1
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2020-05-18 , DOI: 10.1002/aelm.202000251 Jaewan Mun 1 , Jiheong Kang 1, 2 , Yu Zheng 3 , Shaochuan Luo 4 , Yilei Wu 1 , Huaxin Gong 1 , Jian‐Cheng Lai 1, 4 , Hung‐Chin Wu 1 , Gi Xue 4 , Jeffrey B.‐H. Tok 1 , Zhenan Bao 1
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Numerous strategies are developed to impart stretchability to polymer semiconductors. Although these methods improve the ductility, mobility, and stability of such stretchable semiconductors, they nonetheless still need further improvement. Here, it is shown that 2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane (F4‐TCNQ) is an effective molecular additive to tune the properties of a diketopyrrolopyrrole‐based (DPP‐based) semiconductor. Specifically, the addition of F4‐TCNQ is observed to improve the ductility of the semiconductor by altering the polymer’s microstructures and dynamic motions. As a p‐type dopant additive, F4‐TCNQ can also effectively enhance the mobility and stability of the semiconductor through changing the host polymer’s packing structures and charge trap passivation. Upon fabricating fully stretchable transistors with F4‐TCNQ‐DPP blended semiconductor films, it is observed that the resulting stretchable transistors possess one of the highest initial mobility of 1.03 cm2 V−1 s−1. The fabricated transistors also exhibit higher stability (both bias and environmental) and mobility retention under repeated strain, compared to those without F4‐TCNQ additive. These findings offer a new direction of research on stretchable semiconductors to facilitate future practical applications.
中文翻译：
F4-TCNQ作为具有高迁移率和稳定性的Impart可拉伸半导体的添加剂
已经开发出许多策略来赋予聚合物半导体以可拉伸性。尽管这些方法改善了这种可拉伸半导体的延展性，迁移率和稳定性，但是它们仍然需要进一步的改进。此处显示了2,3,5,6-四氟-7,7,8,8-四氰基喹二甲烷（F4-TCNQ）是有效的分子添加剂，可调节基于二酮吡咯并吡咯（DPP）的半导体的性能。具体而言，观察到添加F4-TCNQ可通过改变聚合物的微观结构和动态运动来改善半导体的延展性。作为ap型掺杂剂添加剂，F4-TCNQ还可以通过改变主体聚合物的堆积结构和电荷陷阱钝化来有效增强半导体的迁移率和稳定性。2 V -1 s -1。与没有F4-TCNQ添加剂的晶体管相比，该晶体管在重复应变下还具有更高的稳定性（偏压和环境）以及迁移率保持率。这些发现为可伸缩半导体的研究提供了新的方向，以促进未来的实际应用。
更新日期：2020-05-18
中文翻译：
F4-TCNQ作为具有高迁移率和稳定性的Impart可拉伸半导体的添加剂
已经开发出许多策略来赋予聚合物半导体以可拉伸性。尽管这些方法改善了这种可拉伸半导体的延展性，迁移率和稳定性，但是它们仍然需要进一步的改进。此处显示了2,3,5,6-四氟-7,7,8,8-四氰基喹二甲烷（F4-TCNQ）是有效的分子添加剂，可调节基于二酮吡咯并吡咯（DPP）的半导体的性能。具体而言，观察到添加F4-TCNQ可通过改变聚合物的微观结构和动态运动来改善半导体的延展性。作为ap型掺杂剂添加剂，F4-TCNQ还可以通过改变主体聚合物的堆积结构和电荷陷阱钝化来有效增强半导体的迁移率和稳定性。2 V -1 s -1。与没有F4-TCNQ添加剂的晶体管相比，该晶体管在重复应变下还具有更高的稳定性（偏压和环境）以及迁移率保持率。这些发现为可伸缩半导体的研究提供了新的方向，以促进未来的实际应用。
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