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Effect of TiCl4 Post-Treatment on the Embedded-Type TiO2 Nanotubes Dye-Sensitized Solar Cells

Title
Effect of TiCl4 Post-Treatment on the Embedded-Type TiO2 Nanotubes Dye-Sensitized Solar Cells
Authors
Kim, Kang-PilKim, Jeong-HwaHwang, Dae-KueSung, Shi-JoonHeo, Young-Woo
DGIST Authors
Kim, Kang-PilHwang, Dae-Kue; Sung, Shi-Joon
Issue Date
2015-10
Citation
Journal of Nanoscience and Nanotechnology, 15(10), 7845-7847
Type
Article
Article Type
Article
Keywords
Cell EfficiencyCharge ExchangesCharge TransferDye-Sensitized Solar Cells (DSCs)EfficiencyElectrolytesLow TemperaturesNanotubesPost-TreatmentRough SurfacesSolar CellsTemperatureTiCl4 treatmentTiOTiO2 NanotubeTitanium DioxideTreatment TemperatureYarn
ISSN
1533-4880
Abstract
We have studied the effect of TiCl4 post-treatment on the embedded-type TiO2 nanotubes (NT)-dye-sensitized solar cells (DSSCs). The TiO2 nanoparticles layer formed on TiO2 NTs surface by TiCl4 post-treatment showed different morphologies depending on TiCl4 treatment temperature. These different morphologies influenced the cell efficiency of TiO2 NT-DSSCs. The TiO2 NT treated with TiCl4 at 50°C exhibited a rougher surface than that treated at 70°C. The rough surface of the TiO2 NT improved the charge exchange between the dye and electrolyte. The TiO2 NT treated with TiCl4 at 50°C showed better fill factor and cell efficiency than that treated at 70°C. The TiCl4 post-treatment of TiO2 NT was effective at conditions of low temperature and long times. The TiO2 NT-DSSCs with TiCl4 post-treatment at 50°C for 1.5 h showed an efficiency of 6.52%. Copyright © 2015 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/5167
DOI
10.1166/jnn.2015.11196
Publisher
American Scientific Publishers
Related Researcher
Files:
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Collection:
Convergence Research Center for Solar Energy1. Journal Articles


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