Anais do Workshop INEO 2023

UNDERSTANDING FUNDAMENTAL PROCESSES IN ORGANIC ELECTROCHEMICAL DEVICES AND BIOSENSORS—A THERMODYNAMIC APPROACH

Published in 12/12/2023 - ISBN: 978-65-272-0088-8

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Paper Title
UNDERSTANDING FUNDAMENTAL PROCESSES IN ORGANIC ELECTROCHEMICAL DEVICES AND BIOSENSORS—A THERMODYNAMIC APPROACH
Authors
  • Bianca de Andrade Feitosa (Dr); EESC/IFSC/USP
  • Bruno Bassi Millan Torres
  • Douglas Jose Coutinho
  • Gregório Faria
Modality
Pôster
Subject area
Dispositivos eletrônicos e ópticos (OLED/OFET/OPVs/etc.)
Publishing Date
12/12/2023
Country of Publishing
Brasil
Language of Publishing
Inglês
Paper Page
https://www.even3.com.br/anais/workshop-do-ineo-2023/612884-understanding-fundamental-processes-in-organic-electrochemical-devices-and-biosensorsa-thermodynamic-approach
ISBN
978-65-272-0088-8
Keywords
Transistor, Conjugated Polymers, Theoric Model
Summary
Organic electrochemical based devices (OEDs) have been the main platform of many interesting developments in recent years, mostly in neuromorphic and bioelectronic fields [1,2]. From highly sensitive biosensors all the way to intricate brain-inspired memories, OEDs have paved exciting new roads within Organic Electronics and beyond. Despite the unquestionable success of OEDs, the fundamental processes that govern their operations and sensing abilities, especially in reference to the ion-to-electron transduction is yet to be understood [3]. This is translated to the lack of robust models to describe both the steady-state and transient characteristics of OEDs and electrochemical biosensors alike [4]. Here, we present a thermodynamic-based model that quantitatively describes the operation of OEDs. We focus special attention to the description of Organic Electrochemical Transistor (OECT), given its importance within OEDs, and offer alternative interpretations to the “figure of merit” µC*, which is the fundamental materials component to the ion-electron transduction process and can be corroborated from basic active layer characterization. A systematic study on the influence of the electrolyte composition of p-type OECT, based on regioregular poly(3- hexylthiophene-2,5- diyl) (rr-P3HT) as active layer was performed to validate the model. Finally, by analyzing a large amount of experimental data, with distinct electrolytes, we were able to come up with general guidelines for material design and device developments, towards highly sensitive electrochemical biosensors and devices. Acknowledgements: Our acknowledgements to CAPES, INEO, EESC (USP) and IFSC (USP) by the financial support. References: [1] J. Rivnay, S. Inal, A. Salleo, R. M. Owens, M. Berggren, and G. G. Malliaras, Nature Reviews Materials, 3, 2018. [2] Barbosa, H. F. P., Higuita, G. D. G., Günther, F., & Faria, G. C. . Advanced Electronic Materials, 8(2), 2022. [3] Paudel, P. R., Tropp, J., Kaphle, V., Azoulay, J. D., & Lüssem, B. Journal of Materials Chemistry C, 9(31), 2021. [4] R. Colucci, H. F. de P. Barbosa, F. Günther, P. Cavassin, and G. C. Faria, Flexible and Printed Electronics, 5, 2020.
Title of the Event
Workshop do INEO 2023
City of the Event
Nazaré Paulista
Title of the Proceedings of the event
Anais do Workshop INEO 2023
Name of the Publisher
Even3
Means of Dissemination
Meio Digital

How to cite

EESC/IFSC/USP, Bianca de Andrade Feitosa (Dr); et al.. UNDERSTANDING FUNDAMENTAL PROCESSES IN ORGANIC ELECTROCHEMICAL DEVICES AND BIOSENSORS—A THERMODYNAMIC APPROACH.. In: Anais do workshop INEO 2023. Anais...Nazaré Paulista(SP) Hotel Estância Atibainha, 2023. Available in: https//www.even3.com.br/anais/workshop-do-ineo-2023/612884-UNDERSTANDING-FUNDAMENTAL-PROCESSES-IN-ORGANIC-ELECTROCHEMICAL-DEVICES-AND-BIOSENSORSA-THERMODYNAMIC-APPROACH. Access in: 04/10/2024

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