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Seema Rani, Poonam Suri and Ram Mohan Mehra Mechanism of charge recombination and IPCE in ZnO dye-sensitized solar cells having I−/I 3− and Br−/Br 3− redox couple Progress in Photovoltaics: Research and Applications 19

Version of Record online: 19 JUL 2010 | DOI: 10.1002/pip.1011

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The effect of intensity and wavelength on the solar cell parameters for two DSSCs having I/Imath image and Br/Brmath image as redox couple has been examined to understand the role of the electrolyte in controlling the solar cell parameters. The charge recombination mechanism between conduction band electrons and bromine was found to be of first order whereas for iodine of second order. An estimation of series resistance is made. Use of I/Imath image has resulted in a lower series resistance and higher IPCE of the cell.

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