Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 12, Issue 10, Pages 1283-1286Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.06.038
Keywords
TiO2 sphere; Spherical TiO2; Dye-sensitized solar cell; Low temperature
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Funding
- Pioneer Research Program [2010-0002188]
- Converging Research Center [2009-0082141]
- Ministry of Educations, Science, and Technology, Korea [NRF-2009-C1AAA001-2009-0093879]
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300-nm-sized nanoporous TiO2 spheres (SPs), blended with 25-nm-sized nanoparticles, were successfully applied to low-temperature fabrication of TiO2 electrodes for dye-sensitized solar cell (DSC). The introduction of SPs increased the adsorbed amount dye molecules, induced the efficient transport of photo-injected electrons through TiO2 layer, and offered an extended light-scattering efficiency in the long wavelength region. Furthermore, the adhesion of TiO2 layer to the FTO substrate was considerably improved. As a result, the photovoltaic conversion efficiency (eta) of DSC processed at 140 degrees C was enhanced from 4.4% to 6.3%. (C) 2010 Elsevier B.V. All rights reserved.
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