Low-voltage transparent zinc oxide (ZnO) thin-film transistor with chitosan biopolymer electrolyte as a gate dielectric was fabricated at room temperature and characterized. Due to an electric-double-layer (EDL) effect near the chitosan/ZnO interface through mobile-proton migration, the transistor exhibits a good performance with a carrier mobility of 7.88 cm 2 V −1 s −1 , a threshold voltage of 1.0 V, an on-off current ratio of 5 × 10 4 , a subthreshold slope of 135 mV Dec −1 , and an operating voltage of less than 3 V, respectively. Based on the EDL transistor, the excitatory post-synaptic current and paired-pulse facilitation (PPF) behavior of biological synapses are mimicked, and PPF index is related to the inter-spike interval of the paired pulse. Furthermore, the resistor-loaded inverter based on the transistor was built, showing a high voltage gain of ∼4 at a low supply voltage of 3 V, a small delay, a large noise margin and ...

中文翻译：

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基于壳聚糖生物聚合物电解质门控的氧化物双电层晶体管的人工突触和逆变器的实现

在室温下制备了以壳聚糖生物聚合物电解质为栅极电​​介质的低压透明氧化锌薄膜晶体管。由于通过移动质子迁移在壳聚糖/ ZnO界面附近产生了双电层（EDL）效应，因此该晶体管表现出良好的性能，载流子迁移率为7.88 cm 2 V -1 s -1，阈值电压为1.0 V，开/关电流比5×10 4，亚阈值斜率135 mV Dec -1和工作电压分别小于3V。基于EDL晶体管，模拟了生物突触的兴奋性突触后电流和配对脉冲促进（PPF）行为，并且PPF指数与配对脉冲的尖峰间隔有关。此外，还建立了基于晶体管的负载电阻的逆变器，