The Molecular Engineering of Organic Sensitizers for Solar-Cell Applications

Authors

  • Dr. Jared H. Delcamp,

    1. Laboratory for Photonics and Interfaces, Institution of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, 1015 Lausanne (Switzerland)
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  • Dr. Aswani Yella,

    1. Laboratory for Photonics and Interfaces, Institution of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, 1015 Lausanne (Switzerland)
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  • Dr. Thomas W. Holcombe,

    1. Laboratory for Photonics and Interfaces, Institution of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, 1015 Lausanne (Switzerland)
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  • Dr. Mohammad K. Nazeeruddin,

    1. Laboratory for Photonics and Interfaces, Institution of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, 1015 Lausanne (Switzerland)
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  • Prof. Michael Grätzel

    Corresponding author
    1. Laboratory for Photonics and Interfaces, Institution of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, 1015 Lausanne (Switzerland)
    • Laboratory for Photonics and Interfaces, Institution of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, 1015 Lausanne (Switzerland)

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  • This work was financially supported by the FP7-Energy-2010-FET project Molesol (contract No. 256617). M.G. thanks the European Research Council (ERC) for an advanced research grant (ARG) to support the Mesolight project. M.K.N. thanks the World Class University program funded by the Ministry of Education, Science and Technology through the National Research Foundation of Korea (R31-2011-000-10035-0), Department of Materials Chemistry, Korea University. A.Y. thanks the Balzan Foundation for partial financial support as part of the 2009 Balzan Prize awarded to M.G.

Abstract

original image

Positive to the core: Ullazine has both strong electron-donating and weak accepting properties. This heterocycle was incorporated into sensitizers for dye-sensitized solar cells (DSCs). One of these sensitizers demonstrated strong light absorption across the UV/Vis region. The corresponding DSC device has a maximum IPCE of 95 % at 520 nm, with a power conversion efficiency of 8.4 %.

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