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Spectroelectrochemi...
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Volkov, AntonLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
(author)
Spectroelectrochemistry and Nature of Charge Carriers in Self-Doped Conducting Polymer
- Article/chapterEnglish2017
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2017-06-06
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Wiley-VCH Verlagsgesellschaft,2017
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:liu-140056
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-140056URI
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https://doi.org/10.1002/aelm.201700096DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Funding Agencies|The Swedish Energy Agency [38332-1]; Norrkopings fond for Forskning och Utveckling, Carl Tryggers Stiftelse for Vetenskaplig Forskning [CTS: 13527]; CeNano (Linkoping University); Knut and Alice Wallenberg foundation (Tail of the Sun); Swedish Foundation for Strategic Research (SSF); Advanced Functional Material SFO-center at the Linkoping University (Faculty Grant SFO-Mat-LiU) [2009-00971]; Marie Sklodowska Curie Individual Fellowship (MSCA-IF-EF-ST); Marie Sklodowska Curie Individual Fellowship (Trans-Plant); Marie Sklodowska Curie Individual Fellowship [702641]
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A recently developed water-soluble self-doped sodium salt of bis[3,4-ethylenedioxythiophene] 3thiophene butyric acid (ETE-S) is electropolymerized and characterized by means of spectroelectrochemistry, electron paramagnetic resonance spectroscopy, and cyclic voltammetry, combined with the density functional theory (DFT) and time-dependent DFT calculations. The focus of the studies is to underline the nature of the charge carriers when the electrochemically polymerized ETE-S films undergo a reversible transition from reduced to electrically conductive oxidized states. Spectroelectrochemistry shows clear distinctions between absorption features from reduced and charged species. In the reduced state, the absorption spectrum of ETE-S electropolymerized film shows a peak that is attributed to HOMO. LUMO transition. As the oxidation level increases, this peak diminishes and the absorption of the film is dominated by spinless bipolaronic states with some admixture of polaronic states possessing a magnetic momentum. For fully oxidized samples, the bipolaronic states fully dominate, and the features in the absorption spectra are related to the drastic changes of the band structure, exhibiting a strong decrease of the band gap when a polymeric film undergoes oxidation.
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Singh, Sandeep KumarLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten(Swepub:liu)sansi80
(author)
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Stavrinidou, EleniLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten(Swepub:liu)elest58
(author)
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Gabrielsson, RogerLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten(Swepub:liu)rogka92
(author)
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Franco Gonzalez, FelipeLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten(Swepub:liu)felfr68
(author)
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Cruce, AlexLinköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten,Funktionella elektroniska material(Swepub:liu)alecr28
(author)
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Chen, WeiminLinköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten,Funktionella elektroniska material(Swepub:liu)weich55
(author)
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Simon, DanielLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten(Swepub:liu)dansi08
(author)
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Berggren, MagnusLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten(Swepub:liu)magbe98
(author)
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Zozoulenko, IgorLinköpings universitet,Fysik och elektroteknik,Tekniska fakulteten(Swepub:liu)igozo50
(author)
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Linköpings universitetFysik och elektroteknik
(creator_code:org_t)
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In:Advanced Electronic Materials: Wiley-VCH Verlagsgesellschaft3:82199-160X
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