期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 205, 期 1, 页码 23-27出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2009.04.008
关键词
Dye-sensitized solar cell; Blocking layer; TiO2; Metal oxide layer-by-layer film
资金
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
Charge recombination at the conductor substrate/electrolyte interface has been prevented by using efficient blocking layers of TiO2 compact films in dye-sensitized solar cell photoanodes. Compact blocking layers have been deposited before the mesoporous TiO2 film by the layer-by-layer technique using titania nanoparticles as cations and sodium sulfonated polystyrene, PSS, as a polyanion. The TiO2/PSS blocking layer in a DSC prevents the physical contact of FTO and the electrolyte and leads to a 28% increase in the cell's overall conversion efficiency, from 5.7% to 7.3%. (C) 2009 Elsevier B.V. All rights reserved.
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