Original title: DYE SENSITISED SOLAR CELLS: NEW CHALLENGES FROM GRAPHENE CATHODE AND IODINE-FREE ELECTROLYTE
Authors: Kavan, Ladislav
Document type: Papers
Conference/Event: New trends in application of photo and electro catalysis. The Czech-Austrian workshop /4./, Hnanice (CZ), 2011-12-05 / 2011-12-07
Year: 2012
Language: eng
Abstract: Graphene nanoplatelets (GNP) in the form of thin semitransparent film on F-doped SnO2 (FTO) exhibit high electrocatalytic activity for Co(L)2; where L is 6-(lH-pyrazol-l-yl)- 2,2‘-bipyridine. GNP films with optical transmission below 88% are outperforming the activity of platinized FTO for the Co2+/3+(L)2 redox reaction. Dye-sensitized solar cells with Y123 dye adsorbed on TiO2 photoanode achieved energy conversion efficiencies between 8 to 10 % for both GNP and Pt-based cathodes. However, the cell with GNP cathode is superior to that with Pt-FTO cathode in fill factors and in the efficiency at higher illumination intensities.
Keywords: dye-sensitized solar cells; graphene
Project no.: CEZ:AV0Z40400503 (CEP), IAA400400804 (CEP), KAN200100801 (CEP), LC510 (CEP)
Funding provider: GA AV ČR, GA AV ČR, GA MŠk
Host item entry: New trends in application of photo and electro catalysis. Proceedings of the 4th Czech-Austrian workshop, ISBN 978-80-7080-809-2

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0222065

Permalink: http://www.nusl.cz/ntk/nusl-155367


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Research > Institutes ASCR > J. Heyrovsky Institute of Physical Chemistry
Conference materials > Papers