Synthesis of a BDT-based small-molecule acceptor with dye end groups for organic photovoltaic cell application

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


An acceptor-donor-acceptor (A–D–A)-type small molecule, BDT-IN, having a benzo[1,2-b:4,5-b']dithiophene (BDT) unit as its electron-donating core (D) and an 1,3-indanedione (IN) unit as its electron-withdrawing end group (A), was synthesized by Knoevenagel condensation. The BDT-IN film showed broader UV absorption with a greater red shift (λmax = 622 nm) than that of the BDT-IN solution (λmax = 570 nm). The organic photovoltaic cells were fabricated with an ITO/PEDOT:PSS/poly(3-hexylthiophene): BDT-IN/LiF/Al configuration, and showed a power conversion efficiency of 0.23%.

Original languageEnglish
Pages (from-to)94-101
Number of pages8
JournalMolecular Crystals and Liquid Crystals
Issue number1
StatePublished - 12 Aug 2016


  • 1,3-indandione
  • OPV
  • Organic photovoltaic cells
  • benzo[1,2-b:4,5-b' ]dithiophene (BDT)

Cite this