Enhanced performance of dye-sensitized TiO2 solar cells incorporating COOH-functionalized Si Nanoparticles
- Enhanced performance of dye-sensitized TiO2 solar cells incorporating COOH-functionalized Si Nanoparticles
- 김영수; 김창호; 이연희; 김강진
- dye-sensitized; solar cell; nanoparticles
- Issue Date
- Chemistry of materials
- VOL 22, NO 1, 207-211
- 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 untreatedDSSC. 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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