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Characterization and electrochromic properties of poly(2,3,5,6-tetrafluoroaniline): Progress towards a transparent conducting polymer

Identifieur interne : 001F56 ( Main/Repository ); précédent : 001F55; suivant : 001F57

Characterization and electrochromic properties of poly(2,3,5,6-tetrafluoroaniline): Progress towards a transparent conducting polymer

Auteurs : RBID : Pascal:12-0455903

Descripteurs français

Pascal (Inist)
- Electrode ITO, Electrochromisme, Polymère conducteur, Voltammétrie cyclique, Spectroélectrochimie, Matériau transparent, Microscopie électronique balayage, Aniline dérivé polymère, Polymère fluor, Polymérisation électrolytique, Spectrométrie UV visible, Mécanisme réaction, Electrode optiquement transparente, Réaction électrochimique, Structure surface, Morphologie.

English descriptors

KwdEn :
- Aniline derivative polymer, Conducting polymers, Cyclic voltammetry, Electrochemical polymerization, Electrochemical reaction, Electrochromism, Fluorine containing polymer, Indium tin oxide electrode, Morphology, Optically transparent electrode, Reaction mechanism, Scanning electron microscopy, Spectroelectrochemistry, Surface structure, Transparent material, Ultraviolet visible spectrometry.

Abstract

Electrochromic films of poly(2,3,5,6-tetrafluoroaniline) (PTFA) were formed on ITO substrates from aqueous solutions utilising perchloric acid (HClO₄) as dopant. Electrochemical and spectroscopic characterization of PTFA films was performed in background electrolyte and in solutions with the addition of tetrahydrofuran. When the PTFA film was removed from its growth medium, a significant decrease in the faradaic current was observed. The faradaic response increased on addition of tetrahydrofuran which facilitates ion movement through the polymer matrix. PTFA films deposited on ITO substrate were orange and light orange in the oxidized and reduced forms, respectively. The films were ca. 25 nm in thickness. In aqueous solution the films showed a porous structure with a non-uniform distribution of pore diameters. In the presence of tetrahydrofuran a less porous structure was observed. .

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Le document en format XML

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<author><name sortKey="Astratine, Lavinia" uniqKey="Astratine L">Lavinia Astratine</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Materials Surface and Science Institute & Department of Chemical and Environmental Sciences, University of Limerick</s1>
<s2>Limerick</s2>
<s3>IRL</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
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<country>Irlande (pays)</country>
<wicri:noRegion>Limerick</wicri:noRegion>
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<author><name sortKey="Magner, Edmond" uniqKey="Magner E">Edmond Magner</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Materials Surface and Science Institute & Department of Chemical and Environmental Sciences, University of Limerick</s1>
<s2>Limerick</s2>
<s3>IRL</s3>
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<country>Irlande (pays)</country>
<wicri:noRegion>Limerick</wicri:noRegion>
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</author>
<author><name sortKey="Cassidy, John" uniqKey="Cassidy J">John Cassidy</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>School of Chemical and Pharmaceutical Sciences, Dublin Institute of Technology</s1>
<s2>Kevin St. Dublin 8</s2>
<s3>IRL</s3>
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<country>Irlande (pays)</country>
<wicri:noRegion>Kevin St. Dublin 8</wicri:noRegion>
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</author>
<author><name sortKey="Betts, Anthony" uniqKey="Betts A">Anthony Betts</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Applied Electrochemistry Group, Dublin Institute of Technology, Focas Institute</s1>
<s2>Camden Row, Dublin 8</s2>
<s3>IRL</s3>
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<country>Irlande (pays)</country>
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<title level="j" type="abbreviated">Electrochim. acta</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aniline derivative polymer</term>
<term>Conducting polymers</term>
<term>Cyclic voltammetry</term>
<term>Electrochemical polymerization</term>
<term>Electrochemical reaction</term>
<term>Electrochromism</term>
<term>Fluorine containing polymer</term>
<term>Indium tin oxide electrode</term>
<term>Morphology</term>
<term>Optically transparent electrode</term>
<term>Reaction mechanism</term>
<term>Scanning electron microscopy</term>
<term>Spectroelectrochemistry</term>
<term>Surface structure</term>
<term>Transparent material</term>
<term>Ultraviolet visible spectrometry</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Electrode ITO</term>
<term>Electrochromisme</term>
<term>Polymère conducteur</term>
<term>Voltammétrie cyclique</term>
<term>Spectroélectrochimie</term>
<term>Matériau transparent</term>
<term>Microscopie électronique balayage</term>
<term>Aniline dérivé polymère</term>
<term>Polymère fluor</term>
<term>Polymérisation électrolytique</term>
<term>Spectrométrie UV visible</term>
<term>Mécanisme réaction</term>
<term>Electrode optiquement transparente</term>
<term>Réaction électrochimique</term>
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<front><div type="abstract" xml:lang="en">Electrochromic films of poly(2,3,5,6-tetrafluoroaniline) (PTFA) were formed on ITO substrates from aqueous solutions utilising perchloric acid (HClO<sub>4</sub>
) as dopant. Electrochemical and spectroscopic characterization of PTFA films was performed in background electrolyte and in solutions with the addition of tetrahydrofuran. When the PTFA film was removed from its growth medium, a significant decrease in the faradaic current was observed. The faradaic response increased on addition of tetrahydrofuran which facilitates ion movement through the polymer matrix. PTFA films deposited on ITO substrate were orange and light orange in the oxidized and reduced forms, respectively. The films were ca. 25 nm in thickness. In aqueous solution the films showed a porous structure with a non-uniform distribution of pore diameters. In the presence of tetrahydrofuran a less porous structure was observed. .</div>
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<fA14 i1="01"><s1>Materials Surface and Science Institute & Department of Chemical and Environmental Sciences, University of Limerick</s1>
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<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
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<fA14 i1="03"><s1>Applied Electrochemistry Group, Dublin Institute of Technology, Focas Institute</s1>
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<fC01 i1="01" l="ENG"><s0>Electrochromic films of poly(2,3,5,6-tetrafluoroaniline) (PTFA) were formed on ITO substrates from aqueous solutions utilising perchloric acid (HClO<sub>4</sub>
) as dopant. Electrochemical and spectroscopic characterization of PTFA films was performed in background electrolyte and in solutions with the addition of tetrahydrofuran. When the PTFA film was removed from its growth medium, a significant decrease in the faradaic current was observed. The faradaic response increased on addition of tetrahydrofuran which facilitates ion movement through the polymer matrix. PTFA films deposited on ITO substrate were orange and light orange in the oxidized and reduced forms, respectively. The films were ca. 25 nm in thickness. In aqueous solution the films showed a porous structure with a non-uniform distribution of pore diameters. In the presence of tetrahydrofuran a less porous structure was observed. .</s0>
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<s5>34</s5>
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Characterization and electrochromic properties of poly(2,3,5,6-tetrafluoroaniline): Progress towards a transparent conducting polymer

Characterization and electrochromic properties of poly(2,3,5,6-tetrafluoroaniline): Progress towards a transparent conducting polymer

Descripteurs français

English descriptors

Abstract

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Links to Exploration step

Le document en format XML

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