Fig. 1: Molecular synapse architecture and dynamic current–voltage characteristics. | Nature Communications

Fig. 1: Molecular synapse architecture and dynamic current–voltage characteristics.

From: An artificial synapse based on molecular junctions

Fig. 1: Molecular synapse architecture and dynamic current–voltage characteristics.The alternative text for this image may have been generated using AI.

a Scheme of the molecular synapse device containing a bottom Ag/AgOx electrode, peptide SAM, and a liquid GaOx/EGaIn top electrode, Ag/AgOx//CAAAAKAAAAK//GaOx/EGaIn. The Ag/AgOx electrode is prepared by thermal annealing electron-beam evaporated Ag layer (200 nm) at 150 °C for 40 min in air. Current signals (black, red, and blue curves) recorded by consecutively placing 75 positive b, negative c, and positive d, triangle pulses (light blue curves, amplitude, 0.45 V, width, 9 s). The bottom Ag/AgOx is grounded. e Device endurance test by placing continuous potentiation (amplitude, −0.45 V, red markers, left y-axis) and depression (amplitude, 0.45 V, blue markers, right y-axis) pulses for 65 cycles. 30 square pulses (width, 0.5 s) are placed for each potentiation or depression.

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