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Side Chain Redistribution as a Strategy to Boost Organic Electrochemical Transistor Performance and Stability
Author(s) -
Moser Maximilian,
Hidalgo Tania Cecilia,
Surgailis Jokubas,
Gladisch Johannes,
Ghosh Sarbani,
Sheelamanthula Rajendar,
Thiburce Quentin,
Giovannitti Alexander,
Salleo Alberto,
Gasparini Nicola,
Wadsworth Andrew,
Zozoulenko Igor,
Berggren Magnus,
Stavrinidou Eleni,
Inal Sahika,
McCulloch Iain
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202002748
Subject(s) - materials science , redistribution (election) , side chain , polymer , conjugated system , ethylene glycol , transistor , electrochemistry , organic electronics , nanotechnology , chemical engineering , electrode , composite material , chemistry , electrical engineering , voltage , politics , political science , law , engineering
A series of glycolated polythiophenes for use in organic electrochemical transistors (OECTs) is designed and synthesized, differing in the distribution of their ethylene glycol chains that are tethered to the conjugated backbone. While side chain redistribution does not have a significant impact on the optoelectronic properties of the polymers, this molecular engineering strategy strongly impacts the water uptake achieved in the polymers. By careful optimization of the water uptake in the polymer films, OECTs with unprecedented steady‐state performances in terms of [ μC * ] and current retentions up to 98% over 700 electrochemical switching cycles are developed.