Publication detail

Vertical organic electrochemical transistor platforms for efficient electropolymerization of thiophene based oligomers

GRYSZEL, M. BYUN, D. BURTSCHER, B. ABRAHAMSSON, T. BRODSKÝ, J. SIMON, D. BERGGREN, M. GLOWACKI, E. STRAKOSAS, X. DONAHUE, M.

Original Title

Vertical organic electrochemical transistor platforms for efficient electropolymerization of thiophene based oligomers

Type

journal article in Web of Science

Language

English

Original Abstract

Organic electrochemical transistors (OECTs) have emerged as promising candidates for various fields, including bioelectronics, neuromorphic computing, biosensors, and wearable electronics. OECTs operate in aqueous solutions, exhibit high amplification properties, and offer ion-to-electron signal transduction. The OECT channel consists of a conducting polymer, with PEDOT:PSS receiving the most attention to date. While PEDOT:PSS is highly conductive, and benefits from optimized protocols using secondary dopants and detergents, new p-type and n-type polymers are emerging with desirable material properties. Among these, low-oxidation potential oligomers are highly enabling for bioelectronics applications, however the polymers resulting from their polymerization lag far behind in conductivity compared with the established PEDOT:PSS. In this work we show that by careful design of the OECT geometrical characteristics, we can overcome this limitation and achieve devices that are on-par with transistors employing PEDOT:PSS. We demonstrate that the vertical architecture allows for facile electropolymerization of a family of trimers that are polymerized in very low oxidation potentials, without the need for harsh chemicals or secondary dopants. Vertical and planar OECTs are compared using various characterization methods. We show that vOECTs are superior platforms in general and propose that the vertical architecture can be expanded for the realization of OECTs for various applications. Vertical organic electrochemical transistor platforms enable facile channel formation by electropolymerization. The improved deposition control and resulting high performance is demonstrated here with the trimer ETE-COONa.

Keywords

IN-VIVO POLYMERIZATION

Authors

GRYSZEL, M.; BYUN, D.; BURTSCHER, B.; ABRAHAMSSON, T.; BRODSKÝ, J.; SIMON, D.; BERGGREN, M.; GLOWACKI, E.; STRAKOSAS, X.; DONAHUE, M.

Released

18. 4. 2024

Publisher

ROYAL SOC CHEMISTRY

Location

CAMBRIDGE

ISBN

2050-7534

Periodical

Journal of Materials Chemistry C

Year of study

12

Number

15

State

United Kingdom of Great Britain and Northern Ireland

Pages from

5339

Pages to

5346

Pages count

8

URL

https://pubs.rsc.org/en/content/articlelanding/2024/tc/d3tc04730j

Full text in the Digital Library

http://hdl.handle.net/11012/252834

BibTex

@article{BUT188843,
  author="Maciej {Gryszel} and Donghak {Byun} and Bernhard {Burtscher} and Tobias {Abrahamsson} and Jan {Brodský} and Daniel Theodore {Simon} and Magnus {Berggren} and Eric Daniel {Glowacki} and Xenofon {Strakosas} and Mary {Donahue}",
  title="Vertical organic electrochemical transistor platforms for efficient electropolymerization of thiophene based oligomers",
  journal="Journal of Materials Chemistry C",
  year="2024",
  volume="12",
  number="15",
  pages="5339--5346",
  doi="10.1039/d3tc04730j",
  issn="2050-7534",
  url="https://pubs.rsc.org/en/content/articlelanding/2024/tc/d3tc04730j"
}