2020
DOI: 10.1021/acs.chemmater.0c02041
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Ethylene Glycol-Based Side Chain Length Engineering in Polythiophenes and its Impact on Organic Electrochemical Transistor Performance

Abstract: Replacing the alkyl side chains on conventional semiconducting polymers with ethylene glycol (EG) based chains is a successful strategy in the molecular design of mixed conduction materials for bioelectronic devices, including organic electrochemical transistors (OECTs). Such polymers have demonstrated the capability to conduct both ionic and electronic charges and can offer superior performance compared to the most commonly used active material, poly(3,4ethylenedioxythiophene):poly(styrenesulfonate). While ma… Show more

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Cited by 115 publications
(152 citation statements)
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“…Given the promise of EG functionalized organic semiconductors, several different molecular engineering strategies have been pursued to maximize their performance in OECTs [25, 26] . Broadly speaking these can be categorized into those focusing on the modification of the side chains [22, 27–32] and those altering the aromatic building blocks of the conjugated polymer backbone [17–19, 29, 33, 34] . The efficacy of these modifications is typically assessed by comparing the maximum transconductance ( g m ) that can be achieved in devices, see Equation 1. truegm=μC*WdL(VTh-VG) …”
Section: Introductionmentioning
confidence: 99%
“…Given the promise of EG functionalized organic semiconductors, several different molecular engineering strategies have been pursued to maximize their performance in OECTs [25, 26] . Broadly speaking these can be categorized into those focusing on the modification of the side chains [22, 27–32] and those altering the aromatic building blocks of the conjugated polymer backbone [17–19, 29, 33, 34] . The efficacy of these modifications is typically assessed by comparing the maximum transconductance ( g m ) that can be achieved in devices, see Equation 1. truegm=μC*WdL(VTh-VG) …”
Section: Introductionmentioning
confidence: 99%
“…OMIECs are often conjugated polymers, designed to have appropriate energy levels to perform these reactions under ambient conditions. Judicious side chain engineering [ 1–7 ] or blending with polyelectrolytes facilitates mass transport in aqueous environments to successfully interface with biological systems. [ 8 ] These unique properties enable their application in electrochemical devices, including biosensors, [ 9–12 ] actuators, [ 13 ] energy storage materials, [ 14 ] transistors, [ 15 ] or neuromorphic devices.…”
Section: Introductionmentioning
confidence: 99%
“…Given the promise of EG functionalized organic semiconductors, several different molecular engineering strategies have been pursued to maximize their performance in OECTs [25, 26] . Broadly speaking these can be categorized into those focusing on the modification of the side chains [22, 27–32] and those altering the aromatic building blocks of the conjugated polymer backbone [17–19, 29, 33, 34] . The efficacy of these modifications is typically assessed by comparing the maximum transconductance ( g m ) that can be achieved in devices, see Equation 1. truegm=μC*WdL(VTh-VG) …”
Section: Introductionmentioning
confidence: 99%