Efficient co-sensitization of nanocrystalline TiO2 films by organic sensitizers

Literature Information

Publication Date 2007-08-29
DOI 10.1039/B710759E
Impact Factor 6.222
Authors

Jun-Ho Yum, Song-Rim Jang, Pablo Walter, T. Geiger, F. Nüesch, Sanghoon Kim, Jaejung Ko, Michael Grätzel, Mohammad K. Nazeeruddin


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Abstract

Dye-sensitized solar cells based on co-sensitization of organic dyes having complementary spectral absorption in the visible region resulted in a panchromatic response, which exhibited 86% incident monochromatic photon-to-current conversion efficiency in the visible region; the optimized cell gave a short circuit current density of 15.5 mA cm−2, an open circuit voltage of 685 mV and a fill factor of 0.70 corresponding to an overall conversion efficiency of 7.43% under solar simulated light irradiation of 100 mW cm−2.

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