Effect of Annealing Temperature on the Performances and Electrochemical Properties of TiO2 Dye-Sensitized Solar Cells
The influences of thermal annealing on the microstructure, dye-adsorption, surface area, electrical properties and power conversion efficiency of well-crystallized TiO2 photoelectrodes of dye-sensitized solar cells have been systematically investigated. Although the heat treatment of TiO2 photoelectrodes at higher temperatures was found to result in an enhanced electron transport, it was accompanied with a reduced specific surface area and less adsorbed dye molecules. A power conversion efficiency of 5.1 ± 0.2% was obtained with a negligible deviation for the samples heat-treated at temperatures ranging from 350 °C to 600 °C.
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Document Type: Research Article
Publication date: July 1, 2012
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