Electrolyte-gated transistors based on conducting polymer nanowire junction arrays
Electrolyte-gated transistors based on conducting polymer nanowire junction arrays
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DOI：
10.1021/jp050903k
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发表时间：
2005-07-07
影响因子：
3.3
通讯作者：
Tseng, HR
中科院分区：
文献类型：
--
作者：
Alam, MM;Wang, J;Tseng, HR
在这项研究中，我们描述了基于导电聚合物纳米线电极结阵列在缓冲水介质中的晶体管的电解质门控和掺杂效应。研究了聚苯胺、聚吡咯和聚乙撑二氧噻吩等导电聚合物纳米线。在正栅极偏压的存在下，该设备表现出大的开/关电流比为978聚苯胺的基于晶体管，这些值根据栅极介质的酸度而变化。我们将这些有效的电解质门控和掺杂效应归因于导电聚合物纳米线的电化学制造的纳米结构。这项研究表明，二端器件可以很容易地转换成三端晶体管，通过简单地浸入到电解质溶液中的设备沿着的栅极电极。在这里，场致调制可以应用于信号放大以增强器件性能。
In this study, we describe the electrolyte gating and doping effects of transistors based on conducting polymer nanowire electrode junction arrays in buffered aqueous media. Conducting polymer nanowires including polyaniline, polypyrrole, and poly (ethylenedioxythiophene) were investigated. In the presence of a positive gate bias, the device exhibits a large on/off current ratio of 978 for polyaniline nanowire-based transistors; these values vary according to the acidity of the gate medium. We attribute these efficient electrolyte gating and doping effects to the electrochemically fabricated nanostructures of conducting polymer nanowires. This study demonstrates that two-terminal devices can be easily converted into three-terminal transistors by simply immersing the device into an electrolyte solution along with a gate electrode. Here, the field-induced modulation can be applied for signal amplification to enhance the device performance.