Singlet Fission for Dye-Sensitized Solar Cells: Can a Suitable Sensitizer Be Found?
Journal of the American Chemical Society2006Vol. 128(51), pp. 16546–16553
Citations Over TimeTop 10% of 2006 papers
Irina Paci, Justin C. Johnson, Xudong Chen, Geeta Rana, D. B. Popović, Donald E. David, Arthur J. Nozik, Mark A. Ratner, Josef Michl
Abstract
We discuss possible improvements in the efficiency of dye-sensitized photovoltaic cells using dyes capable of singlet fission into two triplets, thus producing two electron-hole pairs from a single photon. It is pointed out that, in addition to derivatives of large alternant hydrocarbons, those of biradicals are also likely candidates for a favorable ordering of excited-state energy levels, E(T2), E(S1) > 2E(T1). A large number of potentially favorable structures has been examined by the semiempirical Pariser-Parr-Pople method and some also by the time-dependent density functional theory method. Several likely candidates have been identified for experimental examination.
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