In?Materio Reservoir Computing in a Sulfonated Polyaniline Network

A sulfonated polyaniline (SPAN) organic electrochemical network device (OEND) is fabricated using a simple drop-casting method on multiple Au electrodes for use in reservoir computing (RC). The SPAN has humidity-dependent electrical properties. Under high humidity, the OEND exhibits mainly ionic conduction, including charging of an electric double layer and diffusion. nonlinearity hysteresis current–voltage characteristics progressively increase with increasing humidity. rich dynamic output behavior indicates wide variations each electrode, which improves RC performance because disordered network. For RC, waveform generation short-term memory tasks are realized by linear combination outputs. task accuracy capacity calculated from reach 90% 33.9, respectively. Improved spoken-digit classification 60% only 12 outputs, demonstrating that can manage time series data operation owing to nonlinear electronic results suggest SPAN-based systems be applied material-based computing, exploiting their intrinsic physicochemical behavior.