ChemSusChem

Cover image for Vol. 10 Issue 22

Editor: David Smith; Editorial Board Chairs: Matthias Beller, Gabriele Centi, Licheng Sun

Impact Factor: 7.226

ISI Journal Citation Reports © Ranking: 2016: 3/31 (Green & Sustainable Science & Technology); 24/166 (Chemistry Multidisciplinary)

Online ISSN: 1864-564X

Associated Title(s): Angewandte Chemie International Edition, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemCatChem, ChemElectroChem, ChemPhysChem, Energy Technology

1_07/2008Cover Picture: An Improved Perylene Sensitizer for Solar Cell Applications (ChemSusChem 7/2008)

The cover picture shows the working principle of a dye-sensitized solar cell based on a novel perylene organic sensitizer (dye), which exhibits two absorption bands at 620 and 462 nm and reversible oxidation and reduction potentials. The energetic alignment of the HOMO and LUMO of the dye is well suited for electron injection into the TiO2 conduction band as well as for regeneration of the dye by either an electrolyte containing a redox system or a solid-state hole conductor. In their Communication on page 615 ff., M. K. Nazeeruddin et al. report that a solar cell comprised of perylene-anchored TiO2 films and the iodine–iodide redox couple yields an unprecedented incident monochromatic photon-to-current conversion efficiency of 87%. The thiophenol donor groups provide directionality in the excited state leading to an improved short-circuit current density, open-circuit potential, and power conversion efficiency under standard AM 1.5 solar conditions.

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