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Size-dependent photovoltaic property in hollow hemisphere array based dye-sensitized solar cells

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Abstract

For a working electrode in dye-sensitized solar cells (DSSCs), an anatase TiO2 electrode with a hollow hemisphere structure (with diameters of 0.4, 1.5, and 5.0 μm) was fabricated using colloidal templating and RF-sputtering techniques. The experimental results of a short-circuit current density of 1.96 mA/cm2, an open-circuit voltage of 0.73 V, and a power conversion efficiency (AM 1.5) of 0.67% were obtained with a shell thickness of 300 nm, a hemisphere diameter of 0.4 μm, and a 100 nm thick blocking layer. The microstructural features, i.e. hemisphere diameter and shell thickness, played an important role in promoting the charge-collection ability.

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Acknowledgement

This work was supported by KIST Independent Project of one of the authors (I.-D. K).

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Authors and Affiliations

  1. Center for Energy Materials Research, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Republic of Korea

    Dae-Jin Yang, Jae-Min Hong & Il-Doo Kim

  2. Hybrid Materials Research Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Republic of Korea

    Su-Chul Yang & Hyunjung Lee

Authors
  1. Dae-Jin Yang
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  2. Su-Chul Yang
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  3. Jae-Min Hong
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Correspondence to Il-Doo Kim.

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Yang, DJ., Yang, SC., Hong, JM. et al. Size-dependent photovoltaic property in hollow hemisphere array based dye-sensitized solar cells. J Electroceram 24, 200–204 (2010). https://doi.org/10.1007/s10832-008-9555-6

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  • DOI: https://doi.org/10.1007/s10832-008-9555-6

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