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Issue 6, 2014
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1D nanorod-planted 3D inverse opal structures for use in dye-sensitized solar cells

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Abstract

The effectiveness of the 1D nanorod (NR)-planted 3D inverse opal (IO) structure as an electrode for dye-sensitized solar cells (DSSCs) is demonstrated here. The NRs were grown on the surface of a macroporous IO structure and their longitudinal growth increased the surface area of the structure proportional to the growth duration. NR/IO electrodes with various NR growth times were compared. A remarkable JSC was obtained for the DSSCs utilizing a NR/IO electrode. The improvement of the JSC was analyzed in terms of its efficiency in light harvesting and electron transport. The growth of the NRs improved the dye adsorption density and scattering property of the electrode, resulting in an improvement in the light harvesting efficiency. Electrochemical impedance analysis revealed that the NRs also improved its electron transport properties. Further growth of the NRs tended to limit the increase of the JSC, which could be attributed to an overlap between them.

Graphical abstract: 1D nanorod-planted 3D inverse opal structures for use in dye-sensitized solar cells

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Supplementary files

Article information


Submitted
17 Oct 2013
Accepted
20 Nov 2013
First published
19 Dec 2013

Nanoscale, 2014,6, 3105-3109
Article type
Paper

1D nanorod-planted 3D inverse opal structures for use in dye-sensitized solar cells

Y. Park, J. W. Lee, S. Ha and J. H. Moon, Nanoscale, 2014, 6, 3105 DOI: 10.1039/C3NR05520E

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