Abstract
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 language | English |
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Pages (from-to) | 253-258 |
Number of pages | 6 |
Journal | Organic Chemistry Frontiers |
Volume | 2 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2015 Mar |
ASJC Scopus subject areas
- Organic Chemistry