Enhanced Performance of Dye-Sensitized TiO2 Solar Cells Incorporating COOH-Functionalized Si Nanoparticles
Chemistry of Materials2009Vol. 22(1), pp. 207–211
Citations Over TimeTop 11% of 2009 papers
Abstract
Dye-sensitized solar cells (DSSCs) treated with COOH-functionalized Si (Si-COOH) nanoparticles exhibited a higher short-circuit photocurrent density (Jsc) and open-circuit voltage than the corresponding untreated DSSC. The enhanced Jsc is attributed to the sensitization resulting indirectly from the N719 dye attached to the Si-COOH nanoparticles by intramolecular charge transfer and directly from the Si nanoparticles anchored onto the TiO2 film. As a result of the improved performance, the overall energy conversion efficiency was increased by 17%, as compared to that for a reference cell without the Si-COOH nanoparticles at 100 mW cm−2.
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