High-Performance Organic Electrochemical Transistor Based on Photo-annealed Plasmonic Gold Nanoparticle-Doped PEDOT:PSS

Linrong Zhang, Li Wang, Shunhao He, Chengcheng Zhu, Zhongyan Gong, Yulong Zhang, Junjie Wang, Liuyingzi Yu, Kun Gao, Xing Kang, Yaxin Song, Gang Lu, Hai Dong Yu

科研成果: 期刊稿件文章同行评审

24 引用 (Scopus)

摘要

Organic electrochemical transistors (OECTs), particularly the ones based on PEDOT:PSS, are excellent candidates for chemical and biological sensing because of their unique advantages. Improving the sensitivity and stability of OECTs is crucially important for practical applications. Herein, the transconductance of OECT is improved by 8-fold to 14.9 mS by doping the PEDOT:PSS channel with plasmonic gold nanoparticles (AuNPs) using a solution-based process followed by photo annealing. In addition, the OECT also possesses high flexibility and cyclic stability. It is revealed that the doping of AuNPs increases the conductivity of PEDOT:PSS and the photo annealing improves the crystallinity of the PEDOT:PSS channel and the interaction between AuNPs and PEDOT:PSS. These changes lead to the increase in transconductance and cyclic stability. The prepared OECTs are also demonstrated to be effective in sensitive detection of glucose within a wide concentration range of 10 nM−1 mM. Our OECTs based on photo-annealed plasmonic AuNP-doped PEDOT:PSS may find great applications in chemical and biological sensing, and this strategy may be extended to prepare many other high-performance OECT-based devices.

源语言英语
页(从-至)3224-3234
页数11
期刊ACS Applied Materials and Interfaces
15
2
DOI
出版状态已出版 - 18 1月 2023

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