High-Efficiency Ion-Exchange Doping of Conducting Polymers

High-Efficiency Ion-Exchange Doping of Conducting Polymers

© 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 22 vom: 11. Juni, Seite e2102988
Auteur principal: Jacobs, Ian E (Auteur)
Autres auteurs: Lin, Yue, Huang, Yuxuan, Ren, Xinglong, Simatos, Dimitrios, Chen, Chen, Tjhe, Dion, Statz, Martin, Lai, Lianglun, Finn, Peter A, Neal, William G, D'Avino, Gabriele, Lemaur, Vincent, Fratini, Simone, Beljonne, David, Strzalka, Joseph, Nielsen, Christian B, Barlow, Stephen, Marder, Seth R, McCulloch, Iain, Sirringhaus, Henning
Format: Article en ligne
Langue:English
Publié: 2022
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article conjugated polymers doping electrical conductivity electrochemistry ion exchange
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520 |a Molecular doping-the use of redox-active small molecules as dopants for organic semiconductors-has seen a surge in research interest driven by emerging applications in sensing, bioelectronics, and thermoelectrics. However, molecular doping carries with it several intrinsic problems stemming directly from the redox-active character of these materials. A recent breakthrough was a doping technique based on ion-exchange, which separates the redox and charge compensation steps of the doping process. Here, the equilibrium and kinetics of ion exchange doping in a model system, poly(2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene) (PBTTT) doped with FeCl3 and an ionic liquid, is studied, reaching conductivities in excess of 1000 S cm-1 and ion exchange efficiencies above 99%. Several factors that enable such high performance, including the choice of acetonitrile as the doping solvent, which largely eliminates electrolyte association effects and dramatically increases the doping strength of FeCl3 , are demonstrated. In this high ion exchange efficiency regime, a simple connection between electrochemical doping and ion exchange is illustrated, and it is shown that the performance and stability of highly doped PBTTT is ultimately limited by intrinsically poor stability at high redox potential 
650 4 |a Journal Article 
650 4 |a conjugated polymers 
650 4 |a doping 
650 4 |a electrical conductivity 
650 4 |a electrochemistry 
650 4 |a ion exchange 
700 1 |a Lin, Yue  |e verfasserin  |4 aut 
700 1 |a Huang, Yuxuan  |e verfasserin  |4 aut 
700 1 |a Ren, Xinglong  |e verfasserin  |4 aut 
700 1 |a Simatos, Dimitrios  |e verfasserin  |4 aut 
700 1 |a Chen, Chen  |e verfasserin  |4 aut 
700 1 |a Tjhe, Dion  |e verfasserin  |4 aut 
700 1 |a Statz, Martin  |e verfasserin  |4 aut 
700 1 |a Lai, Lianglun  |e verfasserin  |4 aut 
700 1 |a Finn, Peter A  |e verfasserin  |4 aut 
700 1 |a Neal, William G  |e verfasserin  |4 aut 
700 1 |a D'Avino, Gabriele  |e verfasserin  |4 aut 
700 1 |a Lemaur, Vincent  |e verfasserin  |4 aut 
700 1 |a Fratini, Simone  |e verfasserin  |4 aut 
700 1 |a Beljonne, David  |e verfasserin  |4 aut 
700 1 |a Strzalka, Joseph  |e verfasserin  |4 aut 
700 1 |a Nielsen, Christian B  |e verfasserin  |4 aut 
700 1 |a Barlow, Stephen  |e verfasserin  |4 aut 
700 1 |a Marder, Seth R  |e verfasserin  |4 aut 
700 1 |a McCulloch, Iain  |e verfasserin  |4 aut 
700 1 |a Sirringhaus, Henning  |e verfasserin  |4 aut 
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