N-type organic electrochemical transistors with stability in water.
N-type organic electrochemical transistors with stability in water.
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DOI：
10.1038/ncomms13066
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发表时间：
2016-10-07
影响因子：
16.6
通讯作者：
McCulloch, Iain
中科院分区：
文献类型：
--
作者：
Giovannitti, Alexander;Nielsen, Christian B.;Sbircea, Dan-Tiberiu;Inal, Sahika;Donahue, Mary;Niazi, Muhammad R.;Hanifi, David A.;Amassian, Aram;Malliaras, George G.;Rivnay, Jonathan;McCulloch, Iain
有机电化学晶体管（OECTs）由于其有效地抑制生物信号的能力而受到显著关注。该技术的一个主要限制是仅报道了p型材料，这排除了互补电路的开发，并限制了传感器技术。在这里，我们报告的第一次n型OECT，与相对平衡的双极电荷传输特性的基础上的聚合物，支持空穴和电子传输沿着其骨干掺杂时，通过水性电解质和在氧的存在下。这种新型半导体聚合物专门设计用于促进离子传输和促进电化学掺杂。在水中的稳定性测量显示，在连续循环下测试2 h时，未发生降解。该演示为开发基于OECTs的互补电路和提高生物电子器件的复杂性提供了可能性。 有机电化学晶体管在水溶液中将离子信号转换为电子信号，有望用于生物传感应用。在此，Giovannitti等人报道了一种基于共轭共聚物的双极性有机电化学晶体管，其在水中具有高稳定性。
Organic electrochemical transistors (OECTs) are receiving significant attention due to their ability to efficiently transduce biological signals. A major limitation of this technology is that only p-type materials have been reported, which precludes the development of complementary circuits, and limits sensor technologies. Here, we report the first ever n-type OECT, with relatively balanced ambipolar charge transport characteristics based on a polymer that supports both hole and electron transport along its backbone when doped through an aqueous electrolyte and in the presence of oxygen. This new semiconducting polymer is designed specifically to facilitate ion transport and promote electrochemical doping. Stability measurements in water show no degradation when tested for 2 h under continuous cycling. This demonstration opens the possibility to develop complementary circuits based on OECTs and to improve the sophistication of bioelectronic devices. Organic electrochemical transistors transduce ionic to electronic signals in aqueous solutions, holding promise for biological sensing applications. Here, Giovannitti et al. report an ambipolar organic electrochemical transistor, based on a conjugated copolymer, which has a high stability in water.
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