Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell Performance
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...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2016/2853046 |
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| author | Wasan Maiaugree Samuk Pimanpang Wirat Jarernboon Vittaya Amornkitbamrung |
| author_facet | Wasan Maiaugree Samuk Pimanpang Wirat Jarernboon Vittaya Amornkitbamrung |
| author_sort | Wasan Maiaugree |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-f9b13e67dd34446ca794918903b0e46e |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-f9b13e67dd34446ca794918903b0e46e2025-02-03T05:52:15ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2016-01-01201610.1155/2016/28530462853046Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell PerformanceWasan Maiaugree0Samuk Pimanpang1Wirat Jarernboon2Vittaya Amornkitbamrung3Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, ThailandDepartment of Physics, Faculty of Science, Khon Kaen University, Khon Kaen 40002, ThailandMultiwall 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.http://dx.doi.org/10.1155/2016/2853046 |
| spellingShingle | Wasan Maiaugree Samuk Pimanpang Wirat Jarernboon Vittaya Amornkitbamrung Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell Performance International Journal of Photoenergy |
| title | Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell Performance |
| title_full | Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell Performance |
| title_fullStr | Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell Performance |
| title_full_unstemmed | Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell Performance |
| title_short | Influence of Acid Modification Multiwall Carbon Nanotube Counter Electrodes on the Glass and Flexible Dye-Sensitized Solar Cell Performance |
| title_sort | influence of acid modification multiwall carbon nanotube counter electrodes on the glass and flexible dye sensitized solar cell performance |
| url | http://dx.doi.org/10.1155/2016/2853046 |
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