Communication

High-Efficiency Organic-Dye- Sensitized Solar Cells Controlled by Nanocrystalline-TiO2 Electrode Thickness†

  1. S. Ito1,
  2. S. M. Zakeeruddin1,
  3. R. Humphry-Baker1,
  4. P. Liska1,
  5. R. Charvet1,
  6. P. Comte1,
  7. M. K. Nazeeruddin1,
  8. P. Péchy1,
  9. M. Takata2,
  10. H. Miura2,
  11. S. Uchida3,
  12. M. Grätzel1

Article first published online: 24 APR 2006

DOI: 10.1002/adma.200502540

Issue

Advanced Materials

Advanced Materials

Volume 18, Issue 9, pages 1202–1205, May, 2006

Additional Information

How to Cite

Ito, S., Zakeeruddin, S., Humphry-Baker, R., Liska, P., Charvet, R., Comte, P., Nazeeruddin, M., Péchy, P., Takata, M., Miura, H., Uchida, S. and Grätzel, M. (2006), High-Efficiency Organic-Dye- Sensitized Solar Cells Controlled by Nanocrystalline-TiO2 Electrode Thickness. Advanced Materials, 18: 1202–1205. doi: 10.1002/adma.200502540

Author Information

  1. 1

    Laboratoire de Photonique et Interfaces, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland

  2. 2

    Chemicrea Inc. Quattro Muromachi Bldg. 9F, 4-16 Nihonbashi Muromachi, Chuoh-ku, Tokyo 103-0022, Japan

  3. 3

    Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 1-1 Katahira 2-Chome, Aoba-ku, Sendai 980-8577, Japan

  1. †

    This work was supported by a grant from the Swiss Federal Energy Office (OFEN).

Publication History

  1. Issue published online: 24 APR 2006
  2. Article first published online: 24 APR 2006
  3. Manuscript Accepted: 15 FEB 2006
  4. Manuscript Received: 26 NOV 2005

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Keywords:

  • Dye sensitization;
  • Ionic liquids;
  • Solar cells, dye-sensitized;
  • Titanium oxides

Graphical Abstract

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A mesoscopic bilayer TiO2 film used as an electron collector in conjunction with an acetonitrile- or ionic liquid-based electrolyte greatly improves the performance of dye-sensitized solar cells (see figure). The thickness of the nanocrystalline TiO2 film affects the photovoltaic characteristics, particularly for the ionic-liquid-based electrolyte, owing to a limitation of the photocurrent by the diffusion of I3– ions.

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