Abstract:
Dyes, method of making them, and their use in photoelectric conversion devices, especially in dye-sensitized solar cells. The dye compounds are organic compounds of formula (D-π 1 -B-π 2+ ) n -A comprising at least one sequence D-π 1 -B-π 2 connected to a group A, wherein D is a π-electron donor group electronically conjugated to a π-electron acceptor group (A) through a π-electron bridge group(B), n is an integer from 1 to 10, π1 and π2 being optional bridges electronically conjugating respectively D to B and B to A, and wherein the π-electron acceptor group (A) comprises at least two anchoring groups.
Abstract:
The present invention relates to electrochemical and optoelectronic devices comprising a cobalt complex operatively connected to a dye-sensitizer comprising at least one thiophene moiety. Also, novel dye-sensitizers, methods of making the same and their use in electrochemical and optoelectronic devices are disclosed.