Highly stable PEDOT:PSS electrochemical transistors
Highly stable PEDOT:PSS electrochemical transistors
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DOI：
10.1063/5.0079011
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发表时间：
2022-02-14
影响因子：
4
通讯作者：
Hasan, Tawfique
中科院分区：
文献类型：
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作者：
Bidinger, Sophia L.;Han, Sanggil;Hasan, Tawfique
有机电化学晶体管(OECTS)具有本征放大、高跨导和生物相容性等优点，是一种新兴的生物传感传感平台。然而，为了在现实世界的生物传感应用中取得成功，应该展示稳定的性能，以避免可能导致危险的误诊的错误分析读数。这项工作证明了使用商业上可获得的PEDOT：PSS作为沟道层的精心制备的OECTS的稳定性。这些器件在50个转移曲线循环中表现出99%以上的基线电流保持率，更重要的是，在电解液中发生了几次变化。此外，在漏电流的连续测量过程中显示出令人印象深刻的稳定性。这些结果表明，PEDOT：PSS已准备好用于需要准确连续监测的生物传感应用。(C)2022年作者(S)。除另有说明外，所有文章内容均根据知识共享署名(CC By)许可证(http://creativecommons.org/licenses/by/4.0/))进行许可
Organic electrochemical transistors (OECTs) are a burgeoning biosensing transducer platform due to their intrinsic amplification, high transconductance, and biocompatibility. To be successful in real world biosensing applications, however, stable performance should be demonstrated to avoid false analyte readings that could lead to dangerous misdiagnosis. This work demonstrates the stability of carefully prepared OECTs using commercially available PEDOT:PSS as the channel layer. These devices exhibit more than 99% retention of the baseline current over 50 transfer curve cycles and, importantly, after several changes in electrolyte solution. Furthermore, impressive stability is demonstrated during continuous measurements of the drain current. These results show that PEDOT:PSS OECTs are ready for biosensing applications requiring accurate continuous monitoring. (c) 2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)