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Journal of Vacuum Science & Technology A / Volume 30 / Issue 1 / Atomic Layer Deposition (ALD)

J. Vac. Sci. Technol. A 30, 01A157 (2012); http://dx.doi.org/10.1116/1.3670397 (5 pages)

Effects of atomic layer deposited thin films on dye sensitized solar cell performance

Jonathan A. Campbell1, Mervyn deBorniol2, Attila J. Mozer3, Peter J. Evans2, Robert P. Burford4, and Gerry Triani2

1School of Chemical Sciences and Engineering, The University of NSW, Sydney, NSW 2052, Australia
2Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW 2234, Australia
3ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Wollongong, NSW 2522, Australia
4School of Chemical Sciences and Engineering, The University of NSW, Sydney, NSW 2052, Australia.

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(Published online 22 December 2011)

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The application of thin titania films by atomic layer deposition on top of a low temperature nanoparticulate TiO2 electrode was found to enhance the performance of dye sensitized solar cells. Dynamic measurements of photoinduced charge extraction showed that the atomic layer deposited top coat increased the electron lifetime at the same electron density. This was attributed to an increased electron trap concentration, which resulted in slower charge transport and increased charge carrier lifetimes.

© 2012 American Vacuum Society

ACKNOWLEDGMENT

The financial support of the Cooperative Research Centre for Polymers III is acknowledged.

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
  3. RESULTS AND DISCUSSION
  4. SUMMARY AND CONCLUSIONS

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KEYWORDS and PACS

Keywords

atomic layer deposition, carrier lifetime, charge exchange, electron density, electron traps, nanofabrication, nanostructured materials, semiconductor growth, semiconductor thin films, solar cells, titanium compounds

PACS

RELATED DATABASES

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History
Received 2 September 2011
Accepted 8 November 2011
Published online 22 December 2011
Digital Object Identifier
http://dx.doi.org/10.1116/1.3670397

PUBLICATION DATA

ISSN

0734-2101 (print)  
1520-8559 (online)

Publisher

American Vacuum Society

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