Synthesis and functional properties of donor-acceptor π-conjugated oligomers

Ricky M S WONG*, Zhong Hui Li, Ye Tao, Marie D'Iorio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)

Abstract

Novel donor-acceptor oligophenylenevinylenes (OPVs) bearing an electron-donating 2-(2-butoxyethoxy)ethoxy group at one end and various electron-withdrawing groups including alkylsulfonyl, cyano, and nitro functionalities at the other end have been synthesized for investigation of structure-functional property relationships. Depending on the nature of the electron-withdrawing group, the newly synthesized donor-acceptor OPVs can exhibit an efficient light-emitting property or a large photovoltaic effect. The asymmetrically disubstituted OPV bearing 2-(2-butoxy-ethoxy)ethoxy-hexylsulfonyl functionalities possesses superior molecular properties for light-emitting applications than the symmetrically 2-(2-butoxyethoxy)ethoxy-disubstituted counterparts. In addition, our first observation and investigation on the photovoltaic response in polyalkyleneoxy-nitro disubstituted OPV series is reported. The spectral responsivity of the photovoltaic device corresponds to the absorption characteristics of the oligomer. Most importantly, the photocurrent responsivity increases with an extension of the conjugated length of the oligomer.

Original languageEnglish
Pages (from-to)1198-1203
Number of pages6
JournalChemistry of Materials
Volume15
Issue number5
DOIs
Publication statusPublished - 11 Mar 2003

Scopus Subject Areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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