Rectified Ion Currents Through Ultrathin Polyelectrolyte Complex: Toward Chemical Transistors
Rectified Ion Currents Through Ultrathin Polyelectrolyte Complex: Toward Chemical Transistors
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通过超薄聚电解质复合物的整流离子电流：走向化学晶体管
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
J. Schlenoff
中科院分区：
文献类型：
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作者：
David S. Salloum;J. Schlenoff
我们报道了一种离子导电装置，它由一种用水溶性聚合物简单组装的超薄聚电解质多层膜组成。在外部溶液离子强度（盐浓度）的影响下，离子转运位点被可逆地掺杂到膜中。该器件具有整流特性，偏爱低电荷离子，饱和离子电流受扩散限制。这个系统允许化学势转化为离子电流。电流/电压曲线跨越正向和反向偏置状态，以及离子电流的线性和超线性盐门控。
We report an ion-conducting device comprising an ultrathin polyelectrolyte multilayer membrane assembled in a simple manner with water soluble polymers. Under the influence of external solution ionic strength (salt concentration), sites for ion transport are reversibly doped into the membrane. The device exhibits rectifying properties, preferring ions of lower charge, with a saturation ion current limited by diffusion. This system allows for the transduction of chemical potential into ion currents. Current/voltage curves spanning forward and reversed biased regimes are presented, together with linear and hyperlinear salt gating of ion currents.