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Investigations of dye-sensitised titania solar cell electrode using confocal laser scanning microscopy

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Abstract

We have characterised a dye-sensitised nanoporous nanocrystalline titania film used in prototype photoelectrochemical solar cell production. The film was sensitised with two types of ruthenium (II) based dyes for different times, between 0.5 and 24 hours. The penetration and coverage for each type of dye was studied using Confocal Laser Scanning Microscopy (CLSM). Varying laser powers were applied and fluorescence images from the film have been analysed. Both dyes were found to percolate through the whole of the nanoporous film irrespective of the dyeing time but the amount of dye increased with dyeing time. The CLSM is shown to be a valuable tool for the investigation of dye penetration and coverage in porous films.

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Authors and Affiliations

  1. Faculty of Built Environment and Engineering, School of Mechanical, Manufacturing and Medical Engineering, Queensland University of Technology, GPO Box 2434, Brisbane, QLD-, 4001, Australia

    T. Tesfamichael & G. Will

  2. Analytical Electron Microscopy Facility, Queensland University of Technology, GPO Box 2434, Brisbane, QLD-, 4001, Australia

    T. Bostrom

  3. Faculty of Built Environment and Engineering, School of Mechanical, Manufacturing and Medical Engineering, Queensland University of Technology, GPO Box 2434, Brisbane, QLD-, 4001, Australia

    J. Bell

Authors
  1. T. Tesfamichael
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  2. G. Will
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  3. T. Bostrom
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  4. J. Bell
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Correspondence to T. Tesfamichael.

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Tesfamichael, T., Will, G., Bostrom, T. et al. Investigations of dye-sensitised titania solar cell electrode using confocal laser scanning microscopy. Journal of Materials Science 38, 1721–1726 (2003). https://doi.org/10.1023/A:1023275609912

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  • DOI: https://doi.org/10.1023/A:1023275609912

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