Spectroscopic Tools to Investigate the Electrochemical Doping Kinetics and Efficiency in Organic Semiconductors

Bardagot, Olivier; Banerji, Natalie (2022). Spectroscopic Tools to Investigate the Electrochemical Doping Kinetics and Efficiency in Organic Semiconductors. CHIMIA, 76(6), pp. 546-551. Schweizerische Chemische Gesellschaft 10.2533/chimia.2022.546

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Understanding the electrochemical doping of organic semiconductors plays a crucial role in the cur- rent development of organic electronics. In this short review, we present how temperature- and time-depen- dent visible-near-infrared (Vis-NIR) spectroelectrochemistry and terahertz spectroscopy, combined with mul- tivariate curve resolution analysis, can inform on the fundamental mechanisms governing the doping kinetics and efficiency of two archetypal semiconducting polymers (PEDOT and P3HT). We highlight the experimental procedures and data analysis performed to access (i) the thermodynamic parameters driving the extent and dynamics of electrochemical reactions in doped systems and (ii) how the density and nature of charged spe- cies (polarons, bipolarons) impact the charge carrier delocalization, effective THz mobility and hence short- range conductivity.

Item Type:

Journal Article (Original Article)

Division/Institute:

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

UniBE Contributor:

Bardagot, Olivier Nicolas Ludovic and Banerji, Natalie

Subjects:

500 Science > 540 Chemistry

ISSN:

0009-4293

Publisher:

Schweizerische Chemische Gesellschaft

Funders:

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

Language:

English

Submitter:

Olivier Nicolas Ludovic Bardagot

Date Deposited:

08 Jul 2022 08:36

Last Modified:

08 Jul 2022 08:36

Publisher DOI:

10.2533/chimia.2022.546

BORIS DOI:

10.48350/170343

URI:

https://boris.unibe.ch/id/eprint/170343

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