Data related to manuscript ['What drives the kinetics and doping level in the electrochemical reactions of PEDOT:PSS?', Advanced Functional Materials (2021), https://doi.org/10.1002/adfm.202105821]

Rebetez, Gonzague Antoine Henri; Bardagot, Olivier Nicolas Ludovic; Affolter, Joël; Réhault, Julien Emile; Banerji, Natalie (2021). Data related to manuscript ['What drives the kinetics and doping level in the electrochemical reactions of PEDOT:PSS?', Advanced Functional Materials (2021), https://doi.org/10.1002/adfm.202105821] [Dataset]. Wiley 10.1002/adfm.202105821

[img] Archive
Data_Metafile_Rebetez_et_al-2021-Advanced_Functional_Materials.zip
Restricted to registered users only
Available under License BORIS Standard License.

Download (3MB) | Request a copy

The electrochemical dedoping and redoping processes of a thin poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) film immersed in an electrolyte are studied at different temperatures with time-resolved spectroelectrochemistry in the visible and near-infrared range. The spectral signatures of neutral, polaronic, and bipolaronic states of PEDOT are resolved using multivariate curve resolution analysis. Kinetic modeling of their dynamics reveals that both the dedoping and redoping are sequential processes and occur within a few hundred milliseconds in the system. Evaluation of the temperature-dependence with the Van't Hoff, Arrhenius, and Eyring formalisms highlights the role of entropy in both the establishment of the redox equilibrium at a given voltage bias and the reaction rates. This study provides a significant understanding of the fundamental mechanisms determining the level and rate of the electrochemical processes in PEDOT:PSS and will help tailor the design of faster and more efficient bioelectronic devices based on mixed ionic–electronic conductors.

Item Type:

Dataset

Division/Institute:

08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP)

UniBE Contributor:

Rebetez, Gonzague Antoine Henri; Bardagot, Olivier Nicolas Ludovic; Réhault, Julien Emile and Banerji, Natalie

Subjects:

500 Science > 540 Chemistry

Publisher:

Wiley

Funders:

[18] European Research Council ; [4] Swiss National Science Foundation ; [UNSPECIFIED] University of Bern

Language:

French

Submitter:

Olivier Nicolas Ludovic Bardagot

Date Deposited:

25 Jun 2021 14:06

Last Modified:

03 Feb 2022 06:54

Publisher DOI:

10.1002/adfm.202105821

Related URLs:

BORIS DOI:

URI:

https://boris.unibe.ch/id/eprint/156948

Actions (login required)

Edit item Edit item
Provide Feedback