Liquid‐Gated Organic Electronic Devices Based on High‐Performance Solution‐Processed Molecular Semiconductor,Advanced Electronic Materials

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Liquid‐Gated Organic Electronic Devices Based on High‐Performance Solution‐Processed Molecular Semiconductor
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2017-08-18 , DOI: 10.1002/aelm.201700159
Michele Di Lauro ₁ , Marcello Berto _{1,

2} , Martina Giordani _{1,

3} , Simone Benaglia ₁ , Guillaume Schweicher ₄ , Dominique Vuillaume ₅ , Carlo A. Bortolotti ₁ , Yves H. Geerts ₄ , Fabio Biscarini ₁

Affiliation

High‐mobility organic semiconductors such as [1]benzothieno[3,2‐b]benzothiophene (BTBT) derivatives are potential candidates for ultrasensitive biosensors. Here 2,7‐dioctyl BTBT (C8‐BTBT‐C8)‐based liquid‐gated organic electronic devices are demonstrated with two device architectures, viz. electrolyte‐gated organic field‐effect transistor (EGOFET) and electrolyte‐gated organic synapstor (EGOS), and different electrode materials, viz. gold and poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS). EGOFETs exhibit a mean transconductance of about 45 µS, on a par with literature, and a max value up to 256 µS at the state‐of‐the‐art in aqueous electrolyte, with a mean product of charge mobility and effective capacitance of about 0.112 and 0.044 µS V⁻¹ for gold and PEDOT:PSS electrodes, respectively. EGOSs exhibit a dynamic response with 15 ms characteristic timescale with Au electrodes and about twice with PEDOT:PSS electrodes. These results demonstrate a promising route for sensing applications in physiological environment based on fully solution‐processed whole‐organic electronic devices featuring ultrahigh sensitivity and fast response.

中文翻译：

基于高性能溶液处理分子半导体的液控有机电子器件

高迁移率的有机半导体，例如[1] benzothieno [3,2-b]苯并噻吩（BTBT）衍生物，是超灵敏生物传感器的潜在候选者。在此，通过两种设备架构展示了基于2,7-二辛基BTBT（C8-BTBT-C8）的液控有机电子设备。电解质门控有机场效应晶体管（EGOFET）和电解质门控有机突触器（EGOS），以及不同的电极材料。金和聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）。EGOFET的平均跨导约为45 µS，与文献相当，在最新水平的水性电解质中，其最大值高达256 µS，电荷迁移率和有效电容的平均乘积约为0.112和0.044 µS V ^-1分别用于金电极和PEDOT：PSS电极。EGOS在Au电极上具有15 ms特征时标的动态响应，在PEDOT：PSS电极上具有约两倍的动态响应。这些结果证明了基于具有超高灵敏度和快速响应的完全溶液处理的全有机电子设备，在生理环境中进行传感应用的有前途的途径。

更新日期：2017-08-18

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