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Related Experiment Video

Updated: May 31, 2026

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
14:37

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

Published on: November 5, 2014

High efficiency dye-sensitized solar cells based on hierarchically structured nanotubes.

Meidan Ye1, Xukai Xin, Changjian Lin

  • 1Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011, United States.

Nano Letters
|July 7, 2011
PubMed
Summary

Hierarchically structured titanium dioxide nanotubes significantly boost dye loading and power conversion efficiency in dye-sensitized solar cells (DSSCs). This advancement offers a promising pathway for enhanced solar energy harvesting technologies.

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Nanotechnology

Background:

  • Dye-sensitized solar cells (DSSCs) are a promising photovoltaic technology.
  • Improving dye loading and light harvesting is crucial for DSSC performance.
  • Hierarchical nanostructures offer enhanced surface area for improved device efficiency.

Purpose of the Study:

  • To develop hierarchically structured TiO(2) nanotubes for enhanced DSSC performance.
  • To investigate the effect of surface roughness on dye loading.
  • To optimize DSSC efficiency using backside illumination and O(2) plasma treatment.

Main Methods:

  • Fabrication of vertically oriented TiO(2) nanotube arrays via two-step electrochemical anodization.
  • Hydrothermal treatment to introduce surface roughness and create hierarchical nanostructures.

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Last Updated: May 31, 2026

Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells
14:37

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Published on: November 5, 2014

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Published on: September 12, 2014

  • Fabrication of DSSCs using the prepared TiO(2) nanotubes in a backside illumination configuration.

    • Main Results:

    • Hierarchical structuring of TiO(2) nanotubes significantly increased dye loading.
    • DSSCs fabricated with these nanotubes achieved a power conversion efficiency of 7.12%.
    • Exposure to O(2) plasma further enhanced the efficiency to 7.75%.

    Conclusions:

    • Hierarchically structured TiO(2) nanotubes are effective in enhancing DSSC performance.
    • The facile fabrication method offers a scalable approach for producing efficient DSSC components.
    • Further optimization through plasma treatment can lead to even higher power conversion efficiencies.