TY - JOUR
T1 - Controlling the Neuromorphic Behavior of Organic Electrochemical Transistors by Blending Mixed and Ion Conductors
AU - Yamamoto, Shunsuke
AU - Malliaras, George G.
PY - 2020/7/28
Y1 - 2020/7/28
N2 - We examine the neuromorphic behavior of organic electrochemical transistors (OECTs) based on polymer blends of a mixed conductor (PEDOT:PSS) and an ion conductor (PSSNa). We show that the addition of an ionic conductor into PEDOT:PSS decreases the information retention time in paired-pulse depression (PPD) experiments and speeds up the response in dynamic filtering experiments. Detailed studies of transient properties demonstrate that the relevant time scales for the neuromorphic response are determined by an ion injection in and an extraction out of the film. These results bring to the forefront OECTs as devices with neuromorphic properties that are readily engineered.
AB - We examine the neuromorphic behavior of organic electrochemical transistors (OECTs) based on polymer blends of a mixed conductor (PEDOT:PSS) and an ion conductor (PSSNa). We show that the addition of an ionic conductor into PEDOT:PSS decreases the information retention time in paired-pulse depression (PPD) experiments and speeds up the response in dynamic filtering experiments. Detailed studies of transient properties demonstrate that the relevant time scales for the neuromorphic response are determined by an ion injection in and an extraction out of the film. These results bring to the forefront OECTs as devices with neuromorphic properties that are readily engineered.
KW - mixed conductors
KW - neuromorphic devices
KW - organic electrochemical transistors
KW - paired-pulse depression
KW - polymer blends
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U2 - 10.1021/acsaelm.0c00203
DO - 10.1021/acsaelm.0c00203
M3 - Article
AN - SCOPUS:85090472715
VL - 2
SP - 2224
EP - 2228
JO - ACS Applied Electronic Materials
JF - ACS Applied Electronic Materials
SN - 2637-6113
IS - 7
ER -