Enhanced high temperature thermoelectric response of sulphuric acid treated conducting polymer thin films

Handle URI:
http://hdl.handle.net/10754/583404
Title:
Enhanced high temperature thermoelectric response of sulphuric acid treated conducting polymer thin films
Authors:
Sarath Kumar, S. R.; Kurra, Narendra ( 0000-0002-0916-7902 ) ; Alshareef, Husam N. ( 0000-0001-5029-2142 )
Abstract:
We report the high temperature thermoelectric properties of solution processed pristine and sulphuric acid treated poly(3, 4-ethylenedioxythiophene):poly(4-styrenesulfonate) (or PEDOT:PSS) films. The acid treatment is shown to simultaneously enhance the electrical conductivity and Seebeck coefficient of the metal-like films, resulting in a five-fold increase in thermoelectric power factor (0.052 W/m. K ) at 460 K, compared to the pristine film. By using atomic force micrographs, Raman and impedance spectra and using a series heterogeneous model for electrical conductivity, we demonstrate that acid treatment results in the removal of PSS from the films, leading to the quenching of accumulated charge-induced energy barriers that prevent hopping conduction. The continuous removal of PSS with duration of acid treatment also alters the local band structure of PEDOT:PSS, resulting in simultaneous enhancement in Seebeck coefficient.
KAUST Department:
Materials Science and Engineering Program
Citation:
Enhanced high temperature thermoelectric response of sulphuric acid treated conducting polymer thin films 2015 J. Mater. Chem. C
Publisher:
Royal Society of Chemistry (RSC)
Journal:
J. Mater. Chem. C
Issue Date:
24-Nov-2015
DOI:
10.1039/C5TC03145A
Type:
Article
ISSN:
2050-7526; 2050-7534
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2015/TC/C5TC03145A
Appears in Collections:
Articles; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorSarath Kumar, S. R.en
dc.contributor.authorKurra, Narendraen
dc.contributor.authorAlshareef, Husam N.en
dc.date.accessioned2015-12-08T13:36:17Zen
dc.date.available2015-12-08T13:36:17Zen
dc.date.issued2015-11-24en
dc.identifier.citationEnhanced high temperature thermoelectric response of sulphuric acid treated conducting polymer thin films 2015 J. Mater. Chem. Cen
dc.identifier.issn2050-7526en
dc.identifier.issn2050-7534en
dc.identifier.doi10.1039/C5TC03145Aen
dc.identifier.urihttp://hdl.handle.net/10754/583404en
dc.description.abstractWe report the high temperature thermoelectric properties of solution processed pristine and sulphuric acid treated poly(3, 4-ethylenedioxythiophene):poly(4-styrenesulfonate) (or PEDOT:PSS) films. The acid treatment is shown to simultaneously enhance the electrical conductivity and Seebeck coefficient of the metal-like films, resulting in a five-fold increase in thermoelectric power factor (0.052 W/m. K ) at 460 K, compared to the pristine film. By using atomic force micrographs, Raman and impedance spectra and using a series heterogeneous model for electrical conductivity, we demonstrate that acid treatment results in the removal of PSS from the films, leading to the quenching of accumulated charge-induced energy barriers that prevent hopping conduction. The continuous removal of PSS with duration of acid treatment also alters the local band structure of PEDOT:PSS, resulting in simultaneous enhancement in Seebeck coefficient.en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2015/TC/C5TC03145Aen
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in J. Mater. Chem. C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.rsc.org/en/Content/ArticleLanding/2015/TC/C5TC03145A.en
dc.titleEnhanced high temperature thermoelectric response of sulphuric acid treated conducting polymer thin filmsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalJ. Mater. Chem. Cen
dc.eprint.versionPost-printen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorSarath Kumar, S. R.en
kaust.authorKurra, Narendraen
kaust.authorAlshareef, Husam N.en
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