Water content control during solution-based polymerization: a key to reach extremely high conductivity in PEDOT thin films

Autor:	Jérôme Faure-Vincent, Renaud Demadrille, Amélie Schultheiss, Stéphanie Pouget, Alexandre Carella, A. Revaux, Jean-Pierre Simonato
Rok vydání:	2020
Předmět:	Conductive polymer Crystallinity Materials science Fabrication PEDOT:PSS Polymerization Electrical resistivity and conductivity Materials Chemistry Nanotechnology General Chemistry Thin film Conductivity
Zdroj:	Journal of Materials Chemistry C. 8:17254-17260
ISSN:	2050-7534 2050-7526
DOI:	10.1039/d0tc04899b
Popis:	Conductive polymers are a very promising alternative for the fabrication of transparent conductive materials. They have many advantages compared to existing materials, like a low-cost and a high flexibility. However, electrical conductivity still needs to be improved. We report a straightforward solution-based approach for the fabrication of poly(3,4-ethylenedioxythiophene) (PEDOT) thin films with conductivity as high as 6046 ± 510 S cm−1, based on accurate water content control during the polymerization step. The crystallinity improvement is evidenced by GIWAXS characterization, and low temperature electrical conductivity measurements give new insights on the transport mechanisms at stake. This very high conductivity is, to our knowledge, the highest reported value for solution-based synthesis of PEDOT based materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::137e9c1e844f19829c48d3b6a2a6622e https://doi.org/10.1039/d0tc04899b Zobrazit plný text záznamu