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Highly Efficient Mesoscopic Dye‐Sensitized Solar Cells Based on Donor–Acceptor‐Substituted Porphyrins
Author(s) -
Bessho Takeru,
Zakeeruddin Shaik M.,
Yeh ChenYu,
Diau Eric WeiGuang,
Grätzel Michael
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201002118
Subject(s) - porphyrin , chromophore , photochemistry , dye sensitized solar cell , acceptor , conjugated system , photosensitizer , organic dye , materials science , mesoscopic physics , chemistry , chemical engineering , polymer , organic chemistry , physics , electrode , engineering , electrolyte , condensed matter physics , quantum mechanics
To dye for : A porphyrin chromophore, which is integrated into a donor–acceptor dye as a π‐conjugated bridge (see picture), exhibits an unprecedented efficiency of 11 % when used as a photosensitizer in a double‐layer TiO 2 film. A greatly enhanced photovoltaic performance is observed when the porphyrin dye is cosensitized with a metal‐free dye that has a complementary spectral response.