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Enhanced Performance of Dye-Sensitized Solar Cells with Surface-treated Titanium Dioxides

Title
Enhanced Performance of Dye-Sensitized Solar Cells with Surface-treated Titanium Dioxides
Authors
Han, YS[Han, Yoon Soo]Kim, JT[Kim, Jong Tae]
DGIST Authors
Kim, JT[Kim, Jong Tae]
Issue Date
2012
Citation
Molecular Crystals and Liquid Crystals, 565, 138-146
Type
Article
Article Type
Article
Keywords
CoatingsConversion EfficiencyCurrent Voltage CharacteristicsDark Current-VoltageDip-CoatingDip-Coating ProcessDye-Sensitized Solar CellDye-Sensitized Solar Cells (DSCs)Electrochemical Impedance SpectraFill-FactorIncident Photon-to-Current Conversion EfficienciesLithium AcetateModified ElectrodesOpen Circuit VoltagePhotoelectrochemical CellsPhotovoltaic EffectsPhotovoltaic PropertyPower Conversion EfficienciesReference DevicesSolar CellsSurface DipoleTiOTitanium Dioxide
ISSN
1542-1406
Abstract
This work reports on the preparation of lithium acetate (LA)-incorporated TiO 2 electrodes by a very simple dip coating process and the effects of the modified electrode on the photovoltaic properties of dye-sensitized solar cells (DSSCs). The DSSC with a LA-modified TiO 2 layer exhibited an increase in both open circuit voltage and fill factor, resulting in a power conversion efficiency of 7.69% compared to that of a reference device with bare TiO 2 (6.82%). By monitoring the changes in electrochemical impedance spectra, dark current-voltage characteristics and incident photon-to-current conversion efficiency, it was revealed that the incorporated LA functioned as a surface dipole on the TiO 2 electrode. © 2012 Kyungil University.
URI
http://hdl.handle.net/20.500.11750/3414
DOI
10.1080/15421406.2012.693307
Publisher
Taylor and Francis Ltd.
Files:
There are no files associated with this item.
Collection:
Division of Nano∙Energy Convergence Research1. Journal Articles


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