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Improving the performance of TIPS-pentacene thin film transistors via interface modification

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Abstract

Understanding the structure-performance relationship is crucial for optimizing the performance of organic thin film transistors. Here, two interface modification methods were applied to modulate the thin film morphology of the organic semiconductor, 6,13-bis(triisopropylsilylethynyl)pentacene(TIPS-pentacene). The resulting different film morphologies and packing structures led to distinct charge transport abilities. A substantial 40-fold increase in charge carrier mobility was observed on the octadecyltrichlorosilane(OTS)-modified sample compared to that of the transis-tor on the bare substrate. A better charge mobility greater than 1 cm2·V‒1·s‒1 is realized on the p-sexiphenyl(p-6P)-modified transistors due to the large grain size, good continuity and, importantly, the intimate π-π packing in each domain.

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Authors and Affiliations

  1. Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Institute of Functional Nano and Soft Materials(FUNSOM), Soochow University, Suzhou, 215123, P. R. China

    Xiaofei Zhu, Xiaodong Zhang, Lizhen Huang, Zi Wang & Lifeng Chi

Authors
  1. Xiaofei Zhu
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  2. Xiaodong Zhang
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  3. Lizhen Huang
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  4. Zi Wang
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  5. Lifeng Chi
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Corresponding authors

Correspondence to Zi Wang or Lifeng Chi.

Additional information

Supported by the National Natural Science Foundation of China(Nos.11304213, 51503138, 21527805), and the China Postdoctoral Science Foundation(Nos.2014M550304, 2015M581856, 2015T80579).

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Zhu, X., Zhang, X., Huang, L. et al. Improving the performance of TIPS-pentacene thin film transistors via interface modification. Chem. Res. Chin. Univ. 34, 151–154 (2018). https://doi.org/10.1007/s40242-017-7122-x

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  • DOI: https://doi.org/10.1007/s40242-017-7122-x

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