Solvent-induced changes in PEDOT:PSS films for organic electrochemical transistors

Autor: Fabio Cicoira, Laurie Fontaine, Shiming Zhang, Hao Tang, Amel Sarah Nouas, Prajwal Kumar
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: APL Materials, Vol 3, Iss 1, Pp 014911-014911-7 (2015)
Popis: Organic electrochemical transistors based on the conducting polymer poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate) (PEDOT:PSS) are of interest for several bioelectronic applications. In this letter, we investigate the changes induced by immersion of PEDOT:PSS films, processed by spin coating from different mixtures, in water and other solvents of different polarities. We found that the film thickness decreases upon immersion in polar solvents, while the electrical conductivity remains unchanged. The decrease in film thickness is minimized via the addition of a cross-linking agent to the mixture used for the spin coating of the films.
Databáze: OpenAIRE