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Influence of TiO2 coating thickness on energy conversion efficiency of dye-sensitized solar cells

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Abstract

Dye-sensitized solar cells (DSSCs) were synthesized using a 0.25 cm2 area TiO2 nanoparticle/nanorod layer as an electrode and platinum (Pt) as a counter electrode. The TiO2 nanoparticle/nanorod layer was prepared by spin coating and spray coating on fluorine-doped tin oxide glass, respectively. The Pt counter electrode and the ruthenium dye anchored electrode were then assembled as a function of thickness of the TiO2 nanorod layer in a range of 8 to 30 µm. The best photovoltaic performance was observed in the case of a DSSC consisting of a 600 nm thick TiO2 nanoparticle layer and a 20 µm thick TiO2 nanorod layer: a short circuit current density of 11.54 mA·cm−2, open circuit voltage of 0.72V, fill factor of 61.2%, and energy conversion efficiency of 5.07%. A TiO2 nanorod/nanoparticle electrode layer with good adhesion was successfully fabricated.

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Authors and Affiliations

  1. Department of Materials Engineering, Korea Aerospace University, Goyang, 412-791, Korea

    Young-Hun Kim, In-Kyu Lee & Yo-Seung Song

  2. Energy & Environmental Division, Korea Institute of Ceramic Engineering and Technology, Seoul, 153-801, Korea

    Myung-Hyun Lee

  3. Department of Materials Science and Engineering, University of Incheon, Incheon, 406-772, Korea

    Bae-Yeon Kim

  4. Department of Electronic Engineering, Sun Moon University, Asan, 336-708, Korea

    Nam-Ihn Cho

  5. Department of Biomedical Engineering, Daelim University, Anyang, 431-715, Korea

    Deuk Yong Lee

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  1. Young-Hun Kim
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  2. In-Kyu Lee
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  3. Yo-Seung Song
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  4. Myung-Hyun Lee
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  5. Bae-Yeon Kim
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  6. Nam-Ihn Cho
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  7. Deuk Yong Lee
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Correspondence to Deuk Yong Lee.

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Kim, YH., Lee, IK., Song, YS. et al. Influence of TiO2 coating thickness on energy conversion efficiency of dye-sensitized solar cells. Electron. Mater. Lett. 10, 445–449 (2014). https://doi.org/10.1007/s13391-013-3194-z

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  • DOI: https://doi.org/10.1007/s13391-013-3194-z

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