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Effect of side chain length on the electrochemical and photoresponse characteristics of poly[3-(2',5'-dialkoxyphenyl)thiophenes]

Identifieur interne : 006936 ( Main/Repository ); précédent : 006935; suivant : 006937

Effect of side chain length on the electrochemical and photoresponse characteristics of poly[3-(2',5'-dialkoxyphenyl)thiophenes]

Auteurs : RBID : Pascal:08-0340488

Descripteurs français

Pascal (Inist)
- Thiophène dérivé polymère, Polymère aromatique, Polymère conducteur, Préparation, Polymérisation électrolytique, Diéther, Propriété électrochimique, Utilisation, Cellule photoélectrochimique, Oxyde de titane, Tension circuit ouvert, Facteur remplissage, Courant court circuit, Effet substituant, Etude expérimentale, Thiophène(3-[2,5-dialcoxyphényl]) polymère.

English descriptors

KwdEn :
- Aromatic polymer, Conducting polymers, Diether, Electrochemical polymerization, Electrochemical properties, Experimental study, Fill factor, Open circuit voltage, Photoelectrochemical cell, Preparation, Short circuit currents, Substituent effect, Thiophene derivative polymer, Titanium oxide, Use.

Abstract

Poly[3-(2',5'-dioctyloxyphenyl)thiophene] (PDOOPT), poly[3-(2',5'-diheptyloxyphenyl)thiophene] (PDHOPT) and poly[3-(2',5'-dibutyloxyphenyl)-thiophene] (PDBOPT) have been prepared electrochemically from their monomers within nanocrystalline titanium dioxide (nc-TiO₂) porous surface deposited on indium doped tin oxide coated glass (ITO-glass)for solar cell application. The redox properties of the polymers were characterized using cyclic voltammetry. The energy levels of the highest occupied molecular orbitals (HOMO) and the lowest unoccupied molecular orbitals (LUMO) have been estimated from their cyclic voltammograms and UV-vis absorption spectra. The poly[3-(2',5'-dialkoxyphenyl)thiophenes] studied sensitize nc-TiO₂ in liquid-state photoelectrochemical cells. Devices that consist of PDBOPT/nc-TiOO_i photoactive electrode showed improved performance over those that consist of PDHOPT/nc-TiO₂ and PDOOPT/nc-TiO₂. PDBOPT/nc-TiO₂ based devices produced an open-circuit voltage of 0.56V, a short-circuit current of 45 μA/cm², and a fill factor of 0.52 when illuminated with white light intensity of80mW/cm².

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Pascal:08-0340488

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Effect of side chain length on the electrochemical and photoresponse characteristics of poly[3-(2',5'-dialkoxyphenyl)thiophenes]</title>
<author><name sortKey="Sergawie, Assefa" uniqKey="Sergawie A">Assefa Sergawie</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry, Addis Ababa University. P.O. Box 1176</s1>
<s2>Addis Ababa</s2>
<s3>ETH</s3>
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<country>Éthiopie</country>
<wicri:noRegion>Addis Ababa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Admassie, Shimelis" uniqKey="Admassie S">Shimelis Admassie</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry, Addis Ababa University. P.O. Box 1176</s1>
<s2>Addis Ababa</s2>
<s3>ETH</s3>
<sZ>1 aut.</sZ>
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<country>Éthiopie</country>
<wicri:noRegion>Addis Ababa</wicri:noRegion>
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</author>
<author><name sortKey="Mammo, Wendimagegn" uniqKey="Mammo W">Wendimagegn Mammo</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry, Addis Ababa University. P.O. Box 1176</s1>
<s2>Addis Ababa</s2>
<s3>ETH</s3>
<sZ>1 aut.</sZ>
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<country>Éthiopie</country>
<wicri:noRegion>Addis Ababa</wicri:noRegion>
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</author>
<author><name sortKey="Yohannes, Teketel" uniqKey="Yohannes T">Teketel Yohannes</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry, Addis Ababa University. P.O. Box 1176</s1>
<s2>Addis Ababa</s2>
<s3>ETH</s3>
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<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<country>Éthiopie</country>
<wicri:noRegion>Addis Ababa</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Solomon, Theodros" uniqKey="Solomon T">Theodros Solomon</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry, Addis Ababa University. P.O. Box 1176</s1>
<s2>Addis Ababa</s2>
<s3>ETH</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<country>Éthiopie</country>
<wicri:noRegion>Addis Ababa</wicri:noRegion>
</affiliation>
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<publicationStmt><idno type="inist">08-0340488</idno>
<date when="2008">2008</date>
<idno type="stanalyst">PASCAL 08-0340488 INIST</idno>
<idno type="RBID">Pascal:08-0340488</idno>
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<seriesStmt><idno type="ISSN">0379-6779</idno>
<title level="j" type="abbreviated">Synth. met.</title>
<title level="j" type="main">Synthetic metals</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aromatic polymer</term>
<term>Conducting polymers</term>
<term>Diether</term>
<term>Electrochemical polymerization</term>
<term>Electrochemical properties</term>
<term>Experimental study</term>
<term>Fill factor</term>
<term>Open circuit voltage</term>
<term>Photoelectrochemical cell</term>
<term>Preparation</term>
<term>Short circuit currents</term>
<term>Substituent effect</term>
<term>Thiophene derivative polymer</term>
<term>Titanium oxide</term>
<term>Use</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Thiophène dérivé polymère</term>
<term>Polymère aromatique</term>
<term>Polymère conducteur</term>
<term>Préparation</term>
<term>Polymérisation électrolytique</term>
<term>Diéther</term>
<term>Propriété électrochimique</term>
<term>Utilisation</term>
<term>Cellule photoélectrochimique</term>
<term>Oxyde de titane</term>
<term>Tension circuit ouvert</term>
<term>Facteur remplissage</term>
<term>Courant court circuit</term>
<term>Effet substituant</term>
<term>Etude expérimentale</term>
<term>Thiophène(3-[2,5-dialcoxyphényl]) polymère</term>
</keywords>
</textClass>
</profileDesc>
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<front><div type="abstract" xml:lang="en">Poly[3-(2',5'-dioctyloxyphenyl)thiophene] (PDOOPT), poly[3-(2',5'-diheptyloxyphenyl)thiophene] (PDHOPT) and poly[3-(2',5'-dibutyloxyphenyl)-thiophene] (PDBOPT) have been prepared electrochemically from their monomers within nanocrystalline titanium dioxide (nc-TiO<sub>2</sub>
) porous surface deposited on indium doped tin oxide coated glass (ITO-glass)for solar cell application. The redox properties of the polymers were characterized using cyclic voltammetry. The energy levels of the highest occupied molecular orbitals (HOMO) and the lowest unoccupied molecular orbitals (LUMO) have been estimated from their cyclic voltammograms and UV-vis absorption spectra. The poly[3-(2',5'-dialkoxyphenyl)thiophenes] studied sensitize nc-TiO<sub>2</sub>
 in liquid-state photoelectrochemical cells. Devices that consist of PDBOPT/nc-TiOO<sub>i</sub>
 photoactive electrode showed improved performance over those that consist of PDHOPT/nc-TiO<sub>2</sub>
 and PDOOPT/nc-TiO<sub>2</sub>
. PDBOPT/nc-TiO<sub>2</sub>
 based devices produced an open-circuit voltage of 0.56V, a short-circuit current of 45 μA/cm<sup>2</sup>
, and a fill factor of 0.52 when illuminated with white light intensity of80mW/cm<sup>2</sup>
.</div>
</front>
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<fA11 i1="01" i2="1"><s1>SERGAWIE (Assefa)</s1>
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<fA11 i1="02" i2="1"><s1>ADMASSIE (Shimelis)</s1>
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<fA11 i1="03" i2="1"><s1>MAMMO (Wendimagegn)</s1>
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<fA11 i1="05" i2="1"><s1>SOLOMON (Theodros)</s1>
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<fA14 i1="01"><s1>Department of Chemistry, Addis Ababa University. P.O. Box 1176</s1>
<s2>Addis Ababa</s2>
<s3>ETH</s3>
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<sZ>2 aut.</sZ>
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<fC01 i1="01" l="ENG"><s0>Poly[3-(2',5'-dioctyloxyphenyl)thiophene] (PDOOPT), poly[3-(2',5'-diheptyloxyphenyl)thiophene] (PDHOPT) and poly[3-(2',5'-dibutyloxyphenyl)-thiophene] (PDBOPT) have been prepared electrochemically from their monomers within nanocrystalline titanium dioxide (nc-TiO<sub>2</sub>
) porous surface deposited on indium doped tin oxide coated glass (ITO-glass)for solar cell application. The redox properties of the polymers were characterized using cyclic voltammetry. The energy levels of the highest occupied molecular orbitals (HOMO) and the lowest unoccupied molecular orbitals (LUMO) have been estimated from their cyclic voltammograms and UV-vis absorption spectra. The poly[3-(2',5'-dialkoxyphenyl)thiophenes] studied sensitize nc-TiO<sub>2</sub>
 in liquid-state photoelectrochemical cells. Devices that consist of PDBOPT/nc-TiOO<sub>i</sub>
 photoactive electrode showed improved performance over those that consist of PDHOPT/nc-TiO<sub>2</sub>
 and PDOOPT/nc-TiO<sub>2</sub>
. PDBOPT/nc-TiO<sub>2</sub>
 based devices produced an open-circuit voltage of 0.56V, a short-circuit current of 45 μA/cm<sup>2</sup>
, and a fill factor of 0.52 when illuminated with white light intensity of80mW/cm<sup>2</sup>
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<fC03 i1="01" i2="X" l="SPA"><s0>Tiofeno derivado polímero</s0>
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<s5>01</s5>
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<s5>02</s5>
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<s5>02</s5>
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<s5>03</s5>
</fC03>
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<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Préparation</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Preparation</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Preparación</s0>
<s5>04</s5>
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<s5>05</s5>
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<s5>05</s5>
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<s5>05</s5>
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<s5>06</s5>
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<s5>06</s5>
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<fC03 i1="06" i2="X" l="SPA"><s0>Dieter</s0>
<s5>06</s5>
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<s5>07</s5>
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<s5>07</s5>
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<s5>08</s5>
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<s5>08</s5>
</fC03>
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<s5>08</s5>
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<s5>09</s5>
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<s5>09</s5>
</fC03>
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<s5>09</s5>
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<s5>10</s5>
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<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Titanio óxido</s0>
<s5>10</s5>
</fC03>
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<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Open circuit voltage</s0>
<s5>11</s5>
</fC03>
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<s5>12</s5>
</fC03>
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<s5>12</s5>
</fC03>
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<s5>13</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Short circuit currents</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Effet substituant</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Substituent effect</s0>
<s5>14</s5>
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<fC03 i1="16" i2="X" l="FRE"><s0>Thiophène(3-[2,5-dialcoxyphényl]) polymère</s0>
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<s4>INC</s4>
<s5>41</s5>
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<fN21><s1>217</s1>
</fN21>
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Effect of side chain length on the electrochemical and photoresponse characteristics of poly[3-(2',5'-dialkoxyphenyl)thiophenes]

Effect of side chain length on the electrochemical and photoresponse characteristics of poly[3-(2',5'-dialkoxyphenyl)thiophenes]

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

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