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Enhanced Performance of Dye-Sensitized TiO2 Solar Cells Incorporating COOH-Functionalized Si Nanoparticles
- Source :
- Chemistry of Materials. 22:207-211
- Publication Year :
- 2009
- Publisher :
- American Chemical Society (ACS), 2009.
-
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.
Details
- ISSN :
- 15205002 and 08974756
- Volume :
- 22
- Database :
- OpenAIRE
- Journal :
- Chemistry of Materials
- Accession number :
- edsair.doi...........d0960fd62de460abd8a0265120fe0c55