An organic electrochemical transistor with the organic semiconductor poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) film as the channel and the Nafion film as the solid electrolyte has been introduced. The channel current of this transistor can be modulated by proton intercalation driven by the gate voltage pulses. Moreover, the change ratio of the channel current strongly depends on the relative humidity (RH) of environment. With the RH of 26.1%, synaptic plasticity such as short-term potentiation (STP), paired-pulse facilitation (PPF), and the STP to long-term potentiation (LTP) transition have been emulated based on this device, where the channel conductance acts as the synaptic weight and the gate voltage pulses are regarded as the action potential. This kind of organic synaptic transistor is easy for fabrication and stable at temperatures up to 190 °C, which provides a potential candidate for flexible and biocompatible electronic devices.

中文翻译：

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带有Nafion电解质的有机突触晶体管

介绍了一种以有机半导体聚（3,4-乙撑二氧噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）膜为沟道，Nafion膜为固体电解质的有机电化学晶体管。该晶体管的沟道电流可以通过由栅极电压脉冲驱动的质子插入来调制。此外，沟道电流的变化率很大程度上取决于环境的相对湿度（RH）。在RH为26.1％的情况下，已经基于此设备模拟了突触可塑性，例如短期增强（STP），成对脉冲促进（PPF）和从STP向长期增强（LTP）的过渡，电导充当突触权重，而栅极电压脉冲被视为动作电位。