An Evolvable Organic Electrochemical Transistor for Neuromorphic Applications

Gerasimov, Jennifer (author): Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten

Karlsson, Roger H, 1978- (author): Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten

Forchheimer, Robert (author): Linköpings universitet,Informationskodning,Tekniska fakulteten

Stavrinidou, Eleni (author): Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten

Simon, Daniel T, 1978- (author): Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten

Berggren, Magnus, 1968- (author): Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten

Fabiano, Simone (author): Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten

(creator_code:org_t)

2019-02-04
2019
English.
In: Advanced Science. - : Wiley-VCH Verlagsgesellschaft. - 2198-3844. ; 6:7

Related links:: https://liu.diva-por... (primary) (Raw object); show more...; https://onlinelibrar...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

An evolvable organic electrochemical transistor (OECT), operating in the hybrid accumulation-depletion mode is reported, which exhibits short-term and long-term memory functionalities. The transistor channel, formed by an electropolymerized conducting polymer, can be formed, modulated, and obliterated in situ and under operation. Enduring changes in channel conductance, analogous to long-term potentiation and depression, are attained by electropolymerization and electrochemical overoxidation of the channel material, respectively. Transient changes in channel conductance, analogous to short-term potentiation and depression, are accomplished by inducing nonequilibrium doping states within the transistor channel. By manipulating the input signal, the strength of the transistor response to a given stimulus can be modulated within a range that spans several orders of magnitude, producing behavior that is directly comparable to short- and long-term neuroplasticity. The evolvable transistor is further incorporated into a simple circuit that mimics classical conditioning. It is forecasted that OECTs that can be physically and electronically modulated under operation will bring about a new paradigm of machine learning based on evolvable organic electronics.

By the author/editor: Gerasimov, Jenni ...; Karlsson, Roger ...; Forchheimer, Rob ...; Stavrinidou, Ele ...; Simon, Daniel T, ...; Berggren, Magnus ...; show more...; Fabiano, Simone; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Chemical Enginee ...; and Other Chemical E ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.