Synthesis and memory performance of a conjugated polymer with an integrated fluorene, carbazole and oxadiazole backbone
Identifieur interne : 001439 ( Main/Repository ); précédent : 001438; suivant : 001440Synthesis and memory performance of a conjugated polymer with an integrated fluorene, carbazole and oxadiazole backbone
Auteurs : RBID : Pascal:12-0147439Descripteurs français
- Pascal (Inist)
- Carbazole dérivé copolymère, Fluorène dérivé copolymère, Phénylène copolymère, Oxadiazole copolymère, Copolymère conjugué, Copolymère aromatique, Composé soluble, Préparation, Polycondensation solution, Copolycondensation, Copulation Suzuki, Absorption optique, Photoluminescence, Propriété électrochimique, Dispositif à mémoire, Mémoire non effaçable, Barrière Schottky, Couche ITO, Caractéristique courant tension, Etude expérimentale, Quaterpolymère, Copolymère donneur accepteur, Fluorène(9,9-dioctyl) copolymère, Carbazole(9-[4méthoxyphényl]) copolymère.
English descriptors
- KwdEn :
- Aromatic copolymer, Carbazole derivative copolymer, Conjugated copolymer, Copolycondensation, Electrochemical properties, Experimental study, Fluorene derivative copolymer, ITO layers, Memory devices, Optical absorption, Oxadiazole copolymer, Phenylene copolymer, Photoluminescence, Preparation, Schottky barrier, Soluble compound, Solution polycondensation, Suzuki coupling, Voltage current curve, Write-once storage.
Abstract
A new soluble conjugated polymer, poly[{9-(4-methoxyphenyl)-9H-carbazole}(9,9-dioctylfluorene)(2,5-diphenyl-1,3,4-oxadiazole)] (PCFO), was synthesized through the Suzuki coupling reaction. The absolute fluorescence quantum yield of PCFO was measured using the integrating sphere of a photoluminescence spectrofluorometer, and changed from 49.1% for a dilute tetrahydrofuran solution to 16.2% for a thin film due to the existence of a strong fluorescence quenching effect in the solid state. The HOMO- LUMO bandgap (3.07 eV) calculated from the electrochemical measurement is nearly identical to the optical bandgap (3.06 eV) estimated from the ultraviolet/visible absorption onset data. This film was attached to aluminum and indium-tin oxide contacts to fabricate a memory device with typical bistable electrical switching, nonvolatile write-once read-many-times memory performance, a turn-on voltage of ˜-2.3 V and an ON/OFF ratio of ˜105. Degradation of the current density was observed for neither the ON nor OFF states after one hundred million continuous read cycles, which indicates that both states were insensitive to read cycles.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Synthesis and memory performance of a conjugated polymer with an integrated fluorene, carbazole and oxadiazole backbone</title><author><name sortKey="Zeng, Long Jia" uniqKey="Zeng L">Long-Jia Zeng</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Shanghai Key Laboratory of Functional Materials Chemistry, Institute of Applied Chemistry, East China University of Science and Technology</s1><s2>Shanghai</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai</wicri:noRegion></affiliation></author><author><name>GANG LIU</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Department of Chemical and Biomolecular Engineering, National University of Singapore</s1><s2>Kent Ridge</s2><s3>SGP</s3><sZ>2 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Singapour</country><orgName type="university">Université nationale de Singapour</orgName></affiliation></author><author><name>BIN ZHANG</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Shanghai Key Laboratory of Functional Materials Chemistry, Institute of Applied Chemistry, East China University of Science and Technology</s1><s2>Shanghai</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai</wicri:noRegion></affiliation></author><author><name>JUNNENG CHEN</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Shanghai Key Laboratory of Functional Materials Chemistry, Institute of Applied Chemistry, East China University of Science and Technology</s1><s2>Shanghai</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai</wicri:noRegion></affiliation></author><author><name>YU CHEN</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Shanghai Key Laboratory of Functional Materials Chemistry, Institute of Applied Chemistry, East China University of Science and Technology</s1><s2>Shanghai</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>The State Key Laboratory of ASIC & System, Fudan University</s1><s2>Shanghai</s2><s3>CHN</s3><sZ>5 aut.</sZ></inist:fA14><country>République populaire de Chine</country><wicri:noRegion>Shanghai</wicri:noRegion></affiliation></author><author><name sortKey="Kang, En Tang" uniqKey="Kang E">En-Tang Kang</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Department of Chemical and Biomolecular Engineering, National University of Singapore</s1><s2>Kent Ridge</s2><s3>SGP</s3><sZ>2 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Singapour</country><orgName type="university">Université nationale de Singapour</orgName></affiliation></author></titleStmt><publicationStmt><idno type="inist">12-0147439</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0147439 INIST</idno><idno type="RBID">Pascal:12-0147439</idno><idno type="wicri:Area/Main/Corpus">002003</idno><idno type="wicri:Area/Main/Repository">001439</idno></publicationStmt><seriesStmt><idno type="ISSN">0032-3896</idno><title level="j" type="abbreviated">Polym. j.</title><title level="j" type="main">Polymer journal</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aromatic copolymer</term><term>Carbazole derivative copolymer</term><term>Conjugated copolymer</term><term>Copolycondensation</term><term>Electrochemical properties</term><term>Experimental study</term><term>Fluorene derivative copolymer</term><term>ITO layers</term><term>Memory devices</term><term>Optical absorption</term><term>Oxadiazole copolymer</term><term>Phenylene copolymer</term><term>Photoluminescence</term><term>Preparation</term><term>Schottky barrier</term><term>Soluble compound</term><term>Solution polycondensation</term><term>Suzuki coupling</term><term>Voltage current curve</term><term>Write-once storage</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Carbazole dérivé copolymère</term><term>Fluorène dérivé copolymère</term><term>Phénylène copolymère</term><term>Oxadiazole copolymère</term><term>Copolymère conjugué</term><term>Copolymère aromatique</term><term>Composé soluble</term><term>Préparation</term><term>Polycondensation solution</term><term>Copolycondensation</term><term>Copulation Suzuki</term><term>Absorption optique</term><term>Photoluminescence</term><term>Propriété électrochimique</term><term>Dispositif à mémoire</term><term>Mémoire non effaçable</term><term>Barrière Schottky</term><term>Couche ITO</term><term>Caractéristique courant tension</term><term>Etude expérimentale</term><term>Quaterpolymère</term><term>Copolymère donneur accepteur</term><term>Fluorène(9,9-dioctyl) copolymère</term><term>Carbazole(9-[4méthoxyphényl]) copolymère</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A new soluble conjugated polymer, poly[{9-(4-methoxyphenyl)-9H-carbazole}(9,9-dioctylfluorene)(2,5-diphenyl-1,3,4-oxadiazole)] (PCFO), was synthesized through the Suzuki coupling reaction. The absolute fluorescence quantum yield of PCFO was measured using the integrating sphere of a photoluminescence spectrofluorometer, and changed from 49.1% for a dilute tetrahydrofuran solution to 16.2% for a thin film due to the existence of a strong fluorescence quenching effect in the solid state. The HOMO- LUMO bandgap (3.07 eV) calculated from the electrochemical measurement is nearly identical to the optical bandgap (3.06 eV) estimated from the ultraviolet/visible absorption onset data. This film was attached to aluminum and indium-tin oxide contacts to fabricate a memory device with typical bistable electrical switching, nonvolatile write-once read-many-times memory performance, a turn-on voltage of ˜-2.3 V and an ON/OFF ratio of ˜10<sup>5</sup>. Degradation of the current density was observed for neither the ON nor OFF states after one hundred million continuous read cycles, which indicates that both states were insensitive to read cycles.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0032-3896</s0></fA01><fA02 i1="01"><s0>POLJB8</s0></fA02><fA03 i2="1"><s0>Polym. j.</s0></fA03><fA05><s2>44</s2></fA05><fA06><s2>3</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Synthesis and memory performance of a conjugated polymer with an integrated fluorene, carbazole and oxadiazole backbone</s1></fA08><fA11 i1="01" i2="1"><s1>ZENG (Long-Jia)</s1></fA11><fA11 i1="02" i2="1"><s1>GANG LIU</s1></fA11><fA11 i1="03" i2="1"><s1>BIN ZHANG</s1></fA11><fA11 i1="04" i2="1"><s1>JUNNENG CHEN</s1></fA11><fA11 i1="05" i2="1"><s1>YU CHEN</s1></fA11><fA11 i1="06" i2="1"><s1>KANG (En-Tang)</s1></fA11><fA14 i1="01"><s1>Shanghai Key Laboratory of Functional Materials Chemistry, Institute of Applied Chemistry, East China University of Science and Technology</s1><s2>Shanghai</s2><s3>CHN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Chemical and Biomolecular Engineering, National University of Singapore</s1><s2>Kent Ridge</s2><s3>SGP</s3><sZ>2 aut.</sZ><sZ>6 aut.</sZ></fA14><fA14 i1="03"><s1>The State Key Laboratory of ASIC & System, Fudan University</s1><s2>Shanghai</s2><s3>CHN</s3><sZ>5 aut.</sZ></fA14><fA20><s1>257-263</s1></fA20><fA21><s1>2012</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>15734</s2><s5>354000509211480090</s5></fA43><fA44><s0>0000</s0><s1>© 2012 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>48 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>12-0147439</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Polymer journal</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>A new soluble conjugated polymer, poly[{9-(4-methoxyphenyl)-9H-carbazole}(9,9-dioctylfluorene)(2,5-diphenyl-1,3,4-oxadiazole)] (PCFO), was synthesized through the Suzuki coupling reaction. The absolute fluorescence quantum yield of PCFO was measured using the integrating sphere of a photoluminescence spectrofluorometer, and changed from 49.1% for a dilute tetrahydrofuran solution to 16.2% for a thin film due to the existence of a strong fluorescence quenching effect in the solid state. The HOMO- LUMO bandgap (3.07 eV) calculated from the electrochemical measurement is nearly identical to the optical bandgap (3.06 eV) estimated from the ultraviolet/visible absorption onset data. This film was attached to aluminum and indium-tin oxide contacts to fabricate a memory device with typical bistable electrical switching, nonvolatile write-once read-many-times memory performance, a turn-on voltage of ˜-2.3 V and an ON/OFF ratio of ˜10<sup>5</sup>. Degradation of the current density was observed for neither the ON nor OFF states after one hundred million continuous read cycles, which indicates that both states were insensitive to read cycles.</s0></fC01><fC02 i1="01" i2="X"><s0>001D09D02E</s0></fC02><fC02 i1="02" i2="X"><s0>001D03F02</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Carbazole dérivé copolymère</s0><s2>NK</s2><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Carbazole derivative copolymer</s0><s2>NK</s2><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Carbazol derivado copolímero</s0><s2>NK</s2><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Fluorène dérivé copolymère</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Fluorene derivative copolymer</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Fluoreno derivado copolímero</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Phénylène copolymère</s0><s2>NK</s2><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Phenylene copolymer</s0><s2>NK</s2><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Fenileno copolímero</s0><s2>NK</s2><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Oxadiazole copolymère</s0><s2>NK</s2><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Oxadiazole copolymer</s0><s2>NK</s2><s5>04</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Oxadiazol copolímero</s0><s2>NK</s2><s5>04</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Copolymère conjugué</s0><s2>NK</s2><s5>05</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Conjugated copolymer</s0><s2>NK</s2><s5>05</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Copolímero conjugado</s0><s2>NK</s2><s5>05</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Copolymère aromatique</s0><s2>NK</s2><s5>06</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Aromatic copolymer</s0><s2>NK</s2><s5>06</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Copolímero aromático</s0><s2>NK</s2><s5>06</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Composé soluble</s0><s5>08</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Soluble compound</s0><s5>08</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Compuesto soluble</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="FRE"><s0>Préparation</s0><s5>09</s5></fC03><fC03 i1="08" i2="X" l="ENG"><s0>Preparation</s0><s5>09</s5></fC03><fC03 i1="08" i2="X" l="SPA"><s0>Preparación</s0><s5>09</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Polycondensation solution</s0><s5>10</s5></fC03><fC03 i1="09" i2="X" l="ENG"><s0>Solution polycondensation</s0><s5>10</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Policondensación solución</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="FRE"><s0>Copolycondensation</s0><s5>11</s5></fC03><fC03 i1="10" i2="X" l="ENG"><s0>Copolycondensation</s0><s5>11</s5></fC03><fC03 i1="10" i2="X" l="SPA"><s0>Copolicondensación</s0><s5>11</s5></fC03><fC03 i1="11" i2="X" l="FRE"><s0>Copulation Suzuki</s0><s5>12</s5></fC03><fC03 i1="11" i2="X" l="ENG"><s0>Suzuki coupling</s0><s5>12</s5></fC03><fC03 i1="11" i2="X" l="SPA"><s0>Suzuki 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storage</s0><s5>18</s5></fC03><fC03 i1="17" i2="X" l="FRE"><s0>Barrière Schottky</s0><s5>19</s5></fC03><fC03 i1="17" i2="X" l="ENG"><s0>Schottky barrier</s0><s5>19</s5></fC03><fC03 i1="17" i2="X" l="SPA"><s0>Barrera Schottky</s0><s5>19</s5></fC03><fC03 i1="18" i2="3" l="FRE"><s0>Couche ITO</s0><s5>20</s5></fC03><fC03 i1="18" i2="3" l="ENG"><s0>ITO layers</s0><s5>20</s5></fC03><fC03 i1="19" i2="X" l="FRE"><s0>Caractéristique courant tension</s0><s5>21</s5></fC03><fC03 i1="19" i2="X" l="ENG"><s0>Voltage current curve</s0><s5>21</s5></fC03><fC03 i1="19" i2="X" l="SPA"><s0>Característica corriente tensión</s0><s5>21</s5></fC03><fC03 i1="20" i2="X" l="FRE"><s0>Etude expérimentale</s0><s5>23</s5></fC03><fC03 i1="20" i2="X" l="ENG"><s0>Experimental study</s0><s5>23</s5></fC03><fC03 i1="20" i2="X" l="SPA"><s0>Estudio experimental</s0><s5>23</s5></fC03><fC03 i1="21" i2="X" l="FRE"><s0>Quaterpolymère</s0><s4>INC</s4><s5>32</s5></fC03><fC03 i1="22" i2="X" l="FRE"><s0>Copolymère donneur accepteur</s0><s4>INC</s4><s5>33</s5></fC03><fC03 i1="23" i2="X" l="FRE"><s0>Fluorène(9,9-dioctyl) copolymère</s0><s2>NK</s2><s4>INC</s4><s5>34</s5></fC03><fC03 i1="24" i2="X" l="FRE"><s0>Carbazole(9-[4méthoxyphényl]) copolymère</s0><s2>NK</s2><s4>INC</s4><s5>35</s5></fC03><fC07 i1="01" i2="X" l="FRE"><s0>Propriété optique</s0><s5>13</s5></fC07><fC07 i1="01" i2="X" l="ENG"><s0>Optical properties</s0><s5>13</s5></fC07><fC07 i1="01" i2="X" l="SPA"><s0>Propiedad óptica</s0><s5>13</s5></fC07><fN21><s1>114</s1></fN21><fN44 i1="01"><s1>PSI</s1></fN44><fN82><s1>PSI</s1></fN82></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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