Thienyl-BOPHY dyes as promising templates for bulk heterojunction solar cells
Chemical Communications2015Vol. 51(79), pp. 14742–14745
Citations Over TimeTop 10% of 2015 papers
Antoine Mirloup, Quentin Huaulmé, Nicolas Leclerc, Patrick Lévêque, T. Heiser, Pascal Retailleau, Raymond Ziessel
Abstract
The synthesis and characterization of bis(difluoroboryl)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazone functionalized with two lateral vinyl-thienyl modules and exhibiting strong absorption in the 400-800 nm window in thin films are reported. Bulk heterojunction solar cells assembled with these dyes and a fullerene derivative (PC71BM), using very small quantities of the additive diiodooctane, give a power conversion efficiency as high as 4.3% with short-circuit current values of 10.9 mA cm(-2), an open-circuit voltage of 0.7 V and external quantum efficiencies higher than 70% over a broad range of wavelengths (580 to 720 nm).
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