Low-bandgap poly(thienylene vinylene) for organic solar cells: photophysics and photovoltaic performance

Le Huong Nguyen; Serap Günes; Helmut Neugebauer; Niyazi Serdar Sariciftci; Fateme Banishoeib; Anja Henckens; Thomas Cleij; Laurence Lutsen; Dirk Vanderzande

doi:10.1117/12.662581

20 April 2006 Low-bandgap poly(thienylene vinylene) for organic solar cells: photophysics and photovoltaic performance

Le Huong Nguyen, Serap Günes, Helmut Neugebauer, Niyazi Serdar Sariciftci, Fateme Banishoeib, Anja Henckens, Thomas Cleij, Laurence Lutsen, Dirk Vanderzande

Author Affiliations +

Proceedings Volume 6192, Organic Optoelectronics and Photonics II; 61921T (2006) https://doi.org/10.1117/12.662581
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

Photophysical studies and photovoltaic devices on a low bandgap, high charge-carrier-mobility Poly(Thienylene Vinylene) (PTV), prepared from a soluble precursor polymer synthesised via the 'dithiocarbamate route', are reported. In composites with an electron acceptor ([6,6]-phenyl C₆₁- butyric acid methyl ester (PCBM), a soluble fullerene derivative) photoinduced absorption (PIA) characteristic for charged excitations together with photoluminescence (PL) quenching are observed indicating photoinduced electron transfer. The "bulk heterojunction" photovoltaic devices using PTV and PCBM composites show short circuit currents up to 4 mA/cm² under AM 1.5 white-light illumination. The photocurrent spectrum of the photovoltaic device shows an onset at about 1.65 eV (750 nm) which corresponds to the absorption spectrum of the polymer.

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Le Huong Nguyen, Serap Günes, Helmut Neugebauer, Niyazi Serdar Sariciftci, Fateme Banishoeib, Anja Henckens, Thomas Cleij, Laurence Lutsen, and Dirk Vanderzande "Low-bandgap poly(thienylene vinylene) for organic solar cells: photophysics and photovoltaic performance", Proc. SPIE 6192, Organic Optoelectronics and Photonics II, 61921T (20 April 2006); https://doi.org/10.1117/12.662581

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