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Journal of Renewable and Sustainable Energy / Volume 3 / Issue 4 / REGULAR ARTICLES

J. Renewable Sustainable Energy 3, 043106 (2011); http://dx.doi.org/10.1063/1.3615641 (10 pages)

Layered mesoporous nanostructures for enhanced light harvesting in dye-sensitized solar cells

Bin Liu and Eray S. Aydil

Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, USA

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(Received 19 May 2011; accepted 30 June 2011; published online 25 July 2011)

Incident-photon-to-current-conversion efficiency of TiO2 photoanodes is increased significantly in the visible and near infrared range of the electromagnetic spectrum by assembling films that are structured on both micrometer and nanometer length scales. Photoanodes assembled from alternating layers of TiO2 nanoparticles and mesoporous TiO2 microspheres increase the overall power conversion efficiencies of dye-sensitized solar cells by as much as 26%. This increase is due to enhanced light scattering by porous TiO2 microspheres and is achieved without sacrificing the specific surface area.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL DETAILS
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

electrochemical electrodes, energy harvesting, mesoporous materials, nanoparticles, nanoporous materials, solar cells

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3615641

PUBLICATION DATA

ISSN

1941-7012 (online)

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$abstract.society.value is a Member of CrossRef American Institute of Physics

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