Enhanced performance of dye-sensitized TiO2 solar cells incorporating COOH-functionalized Si Nanoparticles

Title
Enhanced performance of dye-sensitized TiO2 solar cells incorporating COOH-functionalized Si Nanoparticles
Authors
김영수김창호이연희김강진
Keywords
dye-sensitized; solar cell; nanoparticles
Issue Date
2010-01
Publisher
Chemistry of materials
Citation
VOL 22, NO 1, 207-211
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 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.
URI
http://pubs.kist.re.kr/handle/201004/38464
ISSN
0897-4756
Appears in Collections:
KIST Publication > Article
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