title: Thienyl-BOPHY dyes as promising templates for bulk heterojunction solar cells.
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).
authors: Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, Laboratoire de Chimie Moléculaire et Spectroscopies Avancées (ICPEES-LCOSA), UMR 7515 au CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France. ziessel@unistra.fr.
authors: A
authors: A
authors: Mirloup
authors: Q
authors: Q
authors: Huaulmé
authors: N
authors: N
authors: Leclerc
authors: P
authors: P
authors: Lévêque
authors: T
authors: T
authors: Heiser
authors: P
authors: P
authors: Retailleau
authors: R
authors: R
authors: Ziessel