A Biomimetic Evolvable Organic Electrochemical Transistor

Biomimicry at the hardware level is expected to overcome at least some of the challenges, including high power consumption, large footprint, two-dimensionality, and limited functionality, which arise as the field of artificial intelligence matures. One of the main attributes that allow biological systems to thrive is the successful interpretation of and response to environmental signals. Taking inspiration from these systems, the first demonstration of using multiple environmental inputs to trigger the formation and control the growth of an evolvable synaptic transistor is reported here. The resulting transistor exhibits long-term changes in the channel conductance at a fixed gate voltage. Biomimetic logic circuits are investigated based on this evolvable transistor that implement temperature and pressure inputs to achieve higher order processes like self-regulation of synaptic strength and coincidence detection.Funding Agencies|Swedish Foundation for Strategic ResearchSwedish Foundation for Strategic Research [SE13-0045, RMX18-0083]; Swedish Research CouncilSwedish Research CouncilEuropean Commission [2016-03979, 2018-06197]; AForsk [18-313, 19-310]; Olle Engkvists Stiftelse [204-0256]; European Research CouncilEuropean Research Council (ERC)European Commission [834677]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009-00971]