Comparison of dye solar cell counter electrodes based on different carbon nanostructures
| Autor: | Minna Toivola, Kerttu Aitola, Albert G. Nasibulin, Krisztian Kordas, Esko I. Kauppinen, Geza Toth, Peter Lund, Niina Halonen, Antti Kaskela, Janne Halme |
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| Rok vydání: | 2011 |
| Předmět: |
carbon nanostructure
Materials science carbon black ta221 chemistry.chemical_element Nanotechnology Carbon nanotube law.invention law dye-sensitized solar cell Materials Chemistry carbon nanotube ta218 ta214 ta114 Metals and Alloys Surfaces and Interfaces Carbon black Surfaces Coatings and Films Electronic Optical and Magnetic Materials Dielectric spectroscopy Dye-sensitized solar cell Carbon film chemistry Chemical engineering conductive layer Tin Carbon Indium catalyst |
| Zdroj: | Thin Solid Films. 519:8125-8134 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2011.05.078 |
| Popis: | Three characteristically different carbon nanomaterials were compared and analyzed as platinum-free counter electrodes for dye solar cells: 1) single-walled carbon nanotube (SWCNT) random network films on glass, 2) aligned multi-walled carbon nanotube (MWCNT) forest films on Inconel steel and quartz, and 3) pressed carbon nanoparticle composite films on indium tin oxide-polyethylene terephtalate plastic. Results from electrochemical impedance spectroscopy and electron microscopy were discussed in terms of the catalytic activity, conductivity, thickness, transparency and flexibility of the electrode films. The SWCNT films showed reasonable catalytic performance at similar series resistance compared to platinized fluorine doped tin oxide-coated glass. The MWCNTs had similar catalytic activity, but the electrochemical performance of the films was limited by their high porosity. Carbon nanoparticle films had the lowest charge transfer resistance resulting from a combination of high catalytic activity and dense packing of the material. |
| Databáze: | OpenAIRE |
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