influence of acid modification multiwall carbon nanotube counter electrodes on the glass and flexible dye-sensitized solar cell performance

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ID: 200504
2016
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Abstract
Multiwall carbon nanotubes (MWCNTs) were modified by acids (H2SO4 : HNO3) for generating active groups on the nanotube surface. Unmodified- and modified-carbon nanotubes were coated on the conductive glass and conductive plastic substrates by a slurry paste method, and they were used as the counter electrodes (CEs) of dye-sensitized solar cells (DSSCs). Scanning electron microscopy reveals that carbon nanotubes are evenly deposited on the conductive glass. The efficiency of the glass based DSSCs of unmodified- and modified-carbon nanotubes and Pt CEs is ~4.73%, ~5.66%, and ~6.08%, respectively. The efficiency of the plastic based DSSCs of the unmodified- and modified-carbon nanotubes CEs is ~0.80% and ~2.11%, respectively. The voltammogram and electrochemical impedance spectroscopy results suggest that the superior performance of the modified-carbon nanotubes DSSCs is attributable to the high electrocatalytic activity and the low charge-transfer resistance of the modified-carbon nanotubes film over the unmodified-carbon nanotubes film.
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maiaugree2016internationalinfluence Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wasan Maiaugree, Samuk Pimanpang, Wirat Jarernboon, Vittaya Amornkitbamrung
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Journal construction and building materials
Year 2016
DOI
10.1155/2016/2853046
URL
http://dx.doi.org/10.1155/2016/2853046
Keywords
renewable energy sources

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