Transparent counter electrodes were prepared on transparent conductive glass (TCG) substrates from a hexachloroplatinic acid solution applying the thermal decomposition method in combination with the spin-coating deposition technique. The effect of the precursor concentration and the number of deposited platinum layers on the surface characteristics of the Pt films was examined, and the relation between those surface characteristics and the electrochemical properties of the corresponding modified Pt/TCG electrodes was defined. Four types of counterelectrodes were prepared, differing in the concentration of the solution ( and ) and in the number of Pt layers (one or two Pt layers); their performance as counterelectrodes was evaluated after their incorporation into dye-sensitized solar cells (DSSCs) employing a solid state redox electrolyte. The obtained results show that solar cells using counterelectrodes prepared from the solution and consisting of two Pt layers (Pt032 electrode) exhibited the best performance characteristics (diffusion coefficient , conversion efficiency , fill factor , and short circuit photocurrent ). The electrochemical behavior of the modified counterelectrodes is consistent with the surface characteristics of the Pt film that formed on the conductive glass substrate, which seems to be significantly affected by the adopted method and the adjusted experimental parameters (Pt concentration and number of Pt layers). Specifically, this type of electrodes beside their low roughness , also presents a high complexity . As a result, for this kind of solid state DSSCs, the less rough but the more complex the Pt/TCG electrode surface, the higher the efficiency of the corresponding solar cells.
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November 2008
Research Papers
Preparation and Characterization of Nanocrystalline Pt/TCG Counterelectrodes for Dye-Sensitized Solar Cells
Antigoni V. Katsanaki,
Antigoni V. Katsanaki
Institute of Physical Chemistry,
NCSR “Demokritos,”
Aghia Paraskevi Attikis, Athens 15310, Greece
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Dimitris S. Tsoukleris,
Dimitris S. Tsoukleris
Institute of Physical Chemistry,
NCSR “Demokritos,”
Aghia Paraskevi Attikis, Athens 15310, Greece
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Polycarpos Falaras,
Polycarpos Falaras
Institute of Physical Chemistry,
e-mail: papi@chem.demokritos.gr
NCSR “Demokritos,”
Aghia Paraskevi Attikis, Athens 15310, Greece
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Haido S. Karayianni,
Haido S. Karayianni
Department of Chemical Engineering,
National Technical University of Athens
, Zografou Attikis, Athens 15772, Greece
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Marie-Claude Bernard
Marie-Claude Bernard
UPR 15 du CNRS “LISE,”
UPMC
, 4 Place Jussieu, 75252 Paris Cedex 05, France
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Antigoni V. Katsanaki
Institute of Physical Chemistry,
NCSR “Demokritos,”
Aghia Paraskevi Attikis, Athens 15310, Greece
Dimitris S. Tsoukleris
Institute of Physical Chemistry,
NCSR “Demokritos,”
Aghia Paraskevi Attikis, Athens 15310, Greece
Polycarpos Falaras
Institute of Physical Chemistry,
NCSR “Demokritos,”
Aghia Paraskevi Attikis, Athens 15310, Greecee-mail: papi@chem.demokritos.gr
Haido S. Karayianni
Department of Chemical Engineering,
National Technical University of Athens
, Zografou Attikis, Athens 15772, Greece
Marie-Claude Bernard
UPR 15 du CNRS “LISE,”
UPMC
, 4 Place Jussieu, 75252 Paris Cedex 05, FranceJ. Sol. Energy Eng. Nov 2008, 130(4): 041008 (7 pages)
Published Online: September 5, 2008
Article history
Received:
November 26, 2007
Revised:
December 4, 2007
Published:
September 5, 2008
Citation
Katsanaki, A. V., Tsoukleris, D. S., Falaras, P., Karayianni, H. S., and Bernard, M. (September 5, 2008). "Preparation and Characterization of Nanocrystalline Pt/TCG Counterelectrodes for Dye-Sensitized Solar Cells." ASME. J. Sol. Energy Eng. November 2008; 130(4): 041008. https://doi.org/10.1115/1.2969805
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