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

Shiming Zhang | Zendy; Prajwal Kumar | Zendy; Amel Sarah Nouas | Zendy; Laurie Fontaine | Zendy; Hao Tang | Zendy; Fabio Cicoira | Zendy

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

Author(s) -

Shiming Zhang,

Prajwal Kumar,

Amel Sarah Nouas,

Laurie Fontaine,

Hao Tang,

Fabio Cicoira

Publication year - 2014

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4905154

Subject(s) - pedot:pss , materials science , conductive polymer , spin coating , electrochemistry , polymer , chemical engineering , organic semiconductor , solvent , doping , conductivity , coating , polymer chemistry , nanotechnology , optoelectronics , composite material , organic chemistry , electrode , chemistry , engineering

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

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