In order to study the electron-ion dual response properties of n-type organic hybrid ion conductors and the effect of molecular weight on carrier mobility,high molecular weight poly(benzimidazobenzophenanthroline)with a planar rigid trapezoidal molecular chain structure was used to prepare high performance organic electrochemical transistors.The transistors were characterized by UV-visible absorption spectra and transistor device electrical properties.The results show that the n-type organic electrochemical transistors prepared by high molecular weight poly(benzimidazobenzophenanthroline)exhibit extremely high responsiveness(0.034 s),high carrier mobility(4.72× 10-3cm2/(V·s))and excellent stability(stable running over 120 pulse cycles)in aqueous electrolytes.
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