Efficient co-sensitization of nanocrystalline TiO(2) films by organic sensitizers |
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| Authors: | Yum Jun-Ho Jang Song-Rim Walter Pablo Geiger T Nüesch F Kim Sanghoon Ko Jaejung Grätzel Michael Nazeeruddin Mohammad K |
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| Institution: | Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, CH-1015, Lausanne, Switzerland. |
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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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