Synthesis and photovoltaic effect in dithieno[2,3-d:2′,3′- d′]benzo[1,2-b:4,5-b′]dithiophene-based conjugated polymers

Hae Jung Son, Luyao Lu, Wei Chen, Tao Xu, Tianyue Zheng, Bridget Carsten, Joseph Strzalka, Seth B. Darling, Lin X Chen, Luping Yu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

171 Scopus citations

Abstract

Conjugated polymers based on a heteroacene, 3,7-dialkyl-dithieno[2,3-d: 2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene (DBD), are synthesized. These polymers show broad UV-vis absorption with energy bandgaps below 1.7 eV. PTDBD2, showing good miscibility in a polymer/phenyl-C71-butyric acid methyl ester (PC71BM) blend film, achieves a power conversion efficiency (PCE) of 7.6%. The results indicate that copolymers containing DBD are promising candidates for high-performance organic solar cells.

Original languageEnglish (US)
Pages (from-to)838-843
Number of pages6
JournalAdvanced Materials
Volume25
Issue number6
DOIs
StatePublished - Feb 13 2013

Keywords

  • acene
  • bulk heterojunctions
  • polymer solar cells

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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