Reconfiguration of organic electrochemical transistors for high-accuracy potentiometric sensing.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
01 Aug 2024
01 Aug 2024
Historique:
received:
14
02
2024
accepted:
16
07
2024
medline:
2
8
2024
pubmed:
2
8
2024
entrez:
1
8
2024
Statut:
epublish
Résumé
Organic electrochemical transistors have emerged as a promising alternative to traditional 2/3 electrode setups for sensing applications, offering in-situ transduction, electrochemical amplification, and noise reduction. Several of these devices are designed to detect potentiometric-derived signals. However, potentiometric sensing should be performed under open circuit potential conditions, allowing the system to reach thermodynamic equilibrium. This criterion is not met by conventional organic electrochemical transistors, where voltages or currents are directly applied to the sensing interface, that is, the gate electrode. In this work, we introduce an organic electrochemical transistor sensing configuration called the potentiometric‑OECT (pOECT), which maintains the sensing electrode under open circuit potential conditions. The pOECT exhibits a higher response than the 2-electrode setup and offers greater accuracy, response, and stability compared to conventional organic electrochemical transistors. Additionally, it allows for the implementation of high-impedance electrodes as gate/sensing surfaces, all without compromising the overall device size.
Identifiants
pubmed: 39090103
doi: 10.1038/s41467-024-50792-1
pii: 10.1038/s41467-024-50792-1
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
6499Subventions
Organisme : King Abdullah University of Science and Technology (KAUST)
ID : ORA-2021-CRG10-4650
Organisme : King Abdullah University of Science and Technology (KAUST)
ID : REI/1/5130-01-01
Informations de copyright
© 2024. The Author(s).
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