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Vertically Aligned ZnO Nanorod Arrays Sentisized with Gold Nanoparticles for Schottky Barrier Photovoltaic Cells
Abstract
Vertically aligned zinc oxide (ZnO) nanorod arrays coated with gold nanoparticles have been used in Schottky barrier solar cells. The nanoparticles enhance the optical absorption in the range of visible light due to the surface plasmon resonance. In charge separations, photoexcited electrons are transferred from gold nanoparticles to the ZnO conduction band while electrons from donor (I − ) in the electrolyte compensate the holes left on the gold nanoparticles. The fill factors of the dye-free Schottky barrier cell reach a value of ∼0.50. However, after incorporation of N719 sensitizing dye, the open circuit voltage increases to 0.63 V from 0.5 V being measured for dye-sensitized solar cells based on the bare ZnO nanorods. The Schottky barrier at the ZnO/Au interface blocks the electron transfer back from ZnO to the dye and electrolyte, and thus increases the electron density at the ZnO conduction band. The efficiency of the gold-coated ZnO nanorod dye-sensitized solar cells is thus increased from 0.7% to 1.2%.
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Cites
Haes, A. J., & Van Duyne, R. P. (2002) · Journal of the American Chemical Society · doi:10.1021/ja020393x · Cited by 2,057
Cited by
Clavero, C. (2014) · Nature Photonics · doi:10.1038/nphoton.2013.238 · Cited by 2,762
ZnO nanostructured materials for emerging solar cell applications
Wibowo, A., Marsudi, M. A., Amal, M. I., Ananda, M. B., Stephanie, R., Ardy, H., & Diguna, L. J. (2020) · RSC Advances · doi:10.1039/d0ra07689a · Cited by 417
Metadata
- Authors
- Chen, Z. H., Tang, Y. B., Liu, C. P., Leung, Y. H., Yuan, G. D., Chen, L. M., Wang, Y. Q., Bello, I., Zapien, J. A., Zhang, W. J., Lee, C. S., & Lee, S. T.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-07-07
- Volume
- 113
- Issue
- 30
- Pages
- 13433-13437
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2002710335
- Cited by
- 186
- References
- 1
- FWCI
- 7.17
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Chen, Z. H., Tang, Y. B., Liu, C. P., Leung, Y. H., Yuan, G. D., Chen, L. M., Wang, Y. Q., Bello, I., Zapien, J. A., Zhang, W. J., Lee, C. S., & Lee, S. T. (2009). Vertically Aligned ZnO Nanorod Arrays Sentisized with Gold Nanoparticles for Schottky Barrier Photovoltaic Cells. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp903153w
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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