New low-gap polymers from 3,4-ethylenedioxythiophene-bis-substituted electron-poor thiophenes. The roles of thiophene, donor-acceptor alternation, and copolymerization in intrinsic conductivity (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• New low-gap polymers from 3,4-ethylenedioxythiophene-bis-substituted electron-poor thiophenes. The roles of thiophene, donor-acceptor alternation, and copolymerization in intrinsic conductivity (Articolo in rivista) (literal)

Anno

• 2004-01-01T00:00:00+01:00 (literal)

Alternative label

• Berlin A., Zotti G., Zecchin S., Schiavon G., Vercelli B., Zanelli A., (2004)
  New low-gap polymers from 3,4-ethylenedioxythiophene-bis-substituted electron-poor thiophenes. The roles of thiophene, donor-acceptor alternation, and copolymerization in intrinsic conductivity
  in Chemistry of materials
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Berlin A., Zotti G., Zecchin S., Schiavon G., Vercelli B., Zanelli A., (literal)

Pagina inizio

• 3667 (literal)

Pagina fine

• 3676 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 16 (literal)

Rivista

• Chemistry of materials (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Istituto per l'Energetica e le Interfasi Istituto di Scienze e Tecnologie Molecolari (literal)

Titolo

• New low-gap polymers from 3,4-ethylenedioxythiophene-bis-substituted electron-poor thiophenes. The roles of thiophene, donor-acceptor alternation, and copolymerization in intrinsic conductivity (literal)

Abstract

• New low-gap thiophene-based regular copolymers are produced by anodic coupling of 3,4-ethylenedioxythiophene-2,5-substituted thieno[3,4-b]pyrazine (TP), cyclopenta[2,1-b;3,4-b¢]- dithiophen-4-one (CO), and 4-dicyanomethylene-4H-cyclopenta[2,1-b;3,4-b¢]dithiophene (CN). The copolymers are characterized by cyclic voltammetry, FTIR reflection-absorption and UV-vis spectroscopy, electrochemical quartz crystal microbalance analysis, and in situ pand n-conductivity measurement. The copolymers show low optical gaps (measured at the maximum absorption) and electrochemical gaps (measured from redox potentials) in the range 0.8-1.3 eV. The CN-based polymer displays the lowest reported electrochemical gap (0.8 V). Random copolymers of CO and 3,4-ethylenedioxythiophene (EDT) have also been produced and compared with the relevant regular copolymer. Copolymerization of CO with increasing amounts of EDT decreases the gap. From an analysis of redox potential as a function of EDT fraction, it is found that the gap is limited by the redox potentials of the individual homopolymers. Localization of n-doping carriers in the polythiophene chains is progressively increased by donor-acceptor alternation and then by copolymerization till the expected intrinsic conductivity is made completely p-type. (literal)

Prodotto di

• Componenti molecolari, supramolecolari o macromolecolari con proprietà fotoniche ed optoelettroniche (PM.P04.004.001) (Modulo)
• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Nanostrutture funzionali su superfici elettrodiche (ET.P06.011.002) (Modulo)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• MAteriali Funzionali Organici per applicazioni High-Tech: sistemi molecolari, supramolecolari e bioibridi (MAFO-HT) (PM.P04.003.003) (Modulo)

Autore CNR

• ANNA BERLIN (Unità di personale interno)
• ALBERTO ZANELLI (Unità di personale interno)
• BARBARA VERCELLI (Unità di personale interno)
• GILBERTO SCHIAVON (Persona)
• SANDRO ZECCHIN (Persona)
• GIANNI ZOTTI (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Institute for organic syntheses and photoreactivity (ISOF) (Istituto)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)
• Nanostrutture funzionali su superfici elettrodiche (ET.P06.011.002) (Modulo)
• MAteriali Funzionali Organici per applicazioni High-Tech: sistemi molecolari, supramolecolari e bioibridi (MAFO-HT) (PM.P04.003.003) (Modulo)
• Componenti molecolari, supramolecolari o macromolecolari con proprietà fotoniche ed optoelettroniche (PM.P04.004.001) (Modulo)

Autore CNR di

• ANNA BERLIN (Unità di personale interno)
• GILBERTO SCHIAVON (Persona)
• BARBARA VERCELLI (Unità di personale interno)
• SANDRO ZECCHIN (Persona)
• ALBERTO ZANELLI (Unità di personale interno)
• GIANNI ZOTTI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Chemistry of materials (Rivista)