n-Type Organic Electrochemical Transistors with High Transconductance and Stability,Chemistry of Materials

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n-Type Organic Electrochemical Transistors with High Transconductance and Stability
Chemistry of Materials ( IF 7.2 ) Pub Date : 2023-01-08 , DOI: 10.1021/acs.chemmater.2c02447
Yazhou Wang ₁ , Genming Zhu ₁ , Erica Zeglio _{2,

3} , Tania Cecilia Hidalgo Castillo ₄ , Sheik Haseena ₅ , Mahesh Kumar Ravva ₅ , Shengyu Cong ₁ , Junxin Chen ₁ , Liuyuan Lan ₁ , Zhengke Li ₁ , Anna Herland _{2,

3} , Iain McCulloch ₆ , Sahika Inal ₄ , Wan Yue _{1,

6}

Affiliation

An n-type conjugated polymer based on diazaisoindigo (AIID) and fluorinated thiophene units is introduced. Combining the strong electron-accepting properties of AIID with backbone fluorination produced gAIID-2FT, leading to organic electrochemical transistors (OECTs) with normalized values of 4.09 F cm^–1 V^–1 s^–1 and a normalized transconductance (g_m,norm) of 0.94 S cm^–1. The resulting OECTs exhibit exceptional operational stability and long shelf-life in ambient conditions, preserving 100% of the original maximum drain current after over 3 h of continuous operation and 28 days of storage in the air. Our work highlights the advantages of integrating strong electron acceptors with donor fluorination to boost the performance and stability of n-type OECTs.

中文翻译：

具有高跨导和稳定性的n型有机电化学晶体管

介绍了一种基于二氮杂异靛蓝 (AIID) 和氟化噻吩单元的 n 型共轭聚合物。将 AIID 的强电子接受特性与主链氟化相结合，产生了 gAIID-2FT，从而产生了归一化值为 4.09 F cm ^–1 V ^–1 s ^–1和归一化跨导 ( g _m,norm ) 的有机电化学晶体管 (OECT) 0.94 S cm ^–1. 由此产生的 OECT 在环境条件下表现出出色的运行稳定性和较长的保质期，在连续运行 3 小时以上和在空气中存放 28 天后，仍能保持 100% 的原始最大漏极电流。我们的工作突出了将强电子受体与供体氟化相结合以提高 n 型 OECT 的性能和稳定性的优势。

更新日期：2023-01-08

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