Thieno[2,3,a]carbazole donor-based organic dyes for high efficiency dye-sensitized solar cells

Jian Zhao, Kazuaki Oniwa, Ashraful Islam, Chuanjiang Qin, Naoki Asao, Liyuan Han, Yoshinori Yamamoto, Tienan Jin

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


A new series of donor-π-acceptor organic K-dyes based on the thieno[2,3,a]carbazole moiety as a new electron donor, trithiophene as a π-linker and cyanoacrylic acid as an electron acceptor were designed and synthesized for achieving high performances in dye-sensitized solar cells (DSCs). The substituent effect and the molecular planarity for photophysical properties and DSC performances of K-dyes have been investigated, and the highest power conversion efficiency of 7.4% has been achieved. EIS and IMVS were employed to study the effect of the molecular structure on the charge transfer process and electron lifetime.

Original languageEnglish
Pages (from-to)253-258
Number of pages6
JournalOrganic Chemistry Frontiers
Issue number3
Publication statusPublished - 2015 Mar

ASJC Scopus subject areas

  • Organic Chemistry


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