Water-based PEDOT: Nafion Dispersion for Organic Bioelectronics
| Autor: | Michele Bianchi, Mirko Prato, Stefano Carli, Mauro Murgia, Anna De Salvo, Michele Di Lauro, Fabio Biscarini, Luciano Fadiga |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
organic electrochemical transistors (OECTs) Nafion Socio-culturale 02 engineering and technology bioelectronics 010402 general chemistry 01 natural sciences chemistry.chemical_compound PEDOT:PSS General Materials Science PEDOT Conductive polymer Organic electronics Bioelectronics PEDOT:Nafion bioelectronics conductive polymers drop-casting Nafion organic electrochemical transistors (OECTs) PEDOT PEDOT:Nafion PEDOT:PSS drop-casting 021001 nanoscience & nanotechnology organic electrochemical transistors 0104 chemical sciences Dielectric spectroscopy chemistry Chemical engineering PEDOT:PSS [bioelectronics conductive polymers PEDOT] 0210 nano-technology Dispersion (chemistry) Organic electrochemical transistor |
| Zdroj: | ACS applied materials & interfaces (Online) 12 (2020): 29807–29817. doi:10.1021/acsami.0c06538 info:cnr-pdr/source/autori:3.Stefano Carli, Michele Di Lauro, Michele Bianchi, Mauro Murgia, Anna De Salvo, Mirko Prato, Luciano Fadiga, Fabio Biscarini/titolo:Water-based PEDOT: Nafion Dispersion for Organic Bioelectronics/doi:10.1021%2Facsami.0c06538/rivista:ACS applied materials & interfaces (Online)/anno:2020/pagina_da:29807/pagina_a:29817/intervallo_pagine:29807–29817/volume:12 |
| DOI: | 10.1021/acsami.0c06538 |
| Popis: | The water dispersion of the conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonic acid) (PEDOT:PSS) is one of the most used material precursors in organic electronics also thanks to its industrial production. There is a growing interest for conductive polymers that could be alternative surrogates or replace PEDOT:PSS in some applications. A recent study by our group compared electrodeposited PEDOT:Nafion vs PEDOT:PSS in the use for neural recordings. Here, we introduce an easy and reproducible synthetic protocol to prepare a water dispersion of PEDOT:Nafion. The conductivity of the pristine material is on the order of 2 S cm-1 and was improved up to ≈6 S cm-1 upon treatment with ethylene glycol. Faster ion transfer was assessed by electrochemical impedance spectroscopy (EIS), and, interestingly, an improved adhesion was observed for coatings of the new PEDOT:Nafion dispersion on glass substrates, even without the addition of the silane cross-linker needed for PEDOT:PSS. As proof of concept, we demonstrate the use of this novel water dispersion of PEDOT:Nafion in three different organic electronic device architectures, namely, an organic electrochemical transistor (OECT), a memristor, and an artificial synapse. |
| Databáze: | OpenAIRE |
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