Cited 4 time in webofscience Cited 5 time in scopus

Improved performance of dye-sensitized solar cells with surface-treated TiO2 as a photoelectrode

Title
Improved performance of dye-sensitized solar cells with surface-treated TiO2 as a photoelectrode
Authors
Park, SK[Park, Su Kyung]Chung, C[Chung, Chinkap]Kim, DH[Kim, Dae-Hwan]Kim, C[Kim, Cham]Lee, SJ[Lee, Sang-Ju]Han, YS[Han, Yoon Soo]
DGIST Authors
Kim, DH[Kim, Dae-Hwan]Kim, C[Kim, Cham]; Lee, SJ[Lee, Sang-Ju]
Issue Date
2012-10
Citation
Materials Research Bulletin, 47(10), 2722-2725
Type
Article
Article Type
Article; Proceedings Paper
Keywords
A. SemiconductorsA. SurfacesAdsorptionC. Impedance SpectroscopyConversion EfficiencyD. Surface PropertiesDip-Coating ProcessDye-Sensitized Solar CellDye-Sensitized Solar Cells (DSCs)Dye AdsorptionElectron LifetimeImpedance SpectroscopyImpedance SpectrumInterfacial ResistancesPhoto-ElectrodePhoto-ElectrodesPhotoelectrochemical CellsPower Conversion EfficienciesReference DevicesSodiumSolar CellsSurface-ModifiedSurface PropertiesTiOTitanium DioxideUltraviolet SpectroscopyUV-Visible Absorption Spectra
ISSN
0025-5408
Abstract
We report on the effects of surface-modified TiO 2 on the performance of dye-sensitized solar cells (DSSCs). TiO 2 surface was modified with Na 2CO 3 via a simple dip coating process and the modified TiO 2 was applied to photoelectrodes of DSSCs. By dipping of TiO 2 layer into aqueous Na 2CO 3 solution, the DSSC showed a power conversion efficiency of 9.98%, compared to that (7.75%) of the reference device without surface treatment. The UV-vis absorption spectra, the impedance spectra and the dark current studies revealed that the increase of all parameters was attributed to the enhanced dye adsorption, the prolonged electron lifetime and the reduced interfacial resistance. © 2012 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/3330
DOI
10.1016/j.materresbull.2012.04.049
Publisher
Elsevier Ltd
Related Researcher
Files:
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Collection:
Division of Nano∙Energy Convergence Research1. Journal Articles
Magnetic-Controlled Materials Research Group1. Journal Articles


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