1. Quasi-solid-state dye-sensitized solar cells: Pt and PEDOT:PSS counter electrodes applied to gel electrolyte assemblies
- Author
-
Biancardo, Matteo, West, Keld, and Krebs, Frederik C.
- Subjects
- *
ELECTRODES , *ELECTROLYTES , *SOLAR cells , *PROPYLENE carbonate - Abstract
Abstract: In this paper we present an attempt to substitute liquid electrolyte (LC) dye-sensitized solar cells (DSSCs) by quasi-solid-state constructions (SC) for semi-transparency application adopting organic/inorganic gels in combination with standard (Pt based) and alternative (PEDOT:PSS based) counter electrodes. Gel polymer electrolytes are prepared by incorporating a liquid electrolyte into a polymer matrix such as polymethyl-methacrylate (PMMA) using propylene carbonate (PC) as gelling solvent. SC employing gel electrolytes with a high content in PC have been shown to exhibit increased lifetime up to 70h under A.M. 1.5 irradiation. Counter electrodes were prepared by an airbrushing and tape casting technique of Pt salt solutions or by spin coating of commercial PEDOT:PSS solution. PEDOT:PSS counter electrodes were found to show similar I3 −/I− catalytic activities to Pt based counter electrodes and the best SC obtained gave a short circuit current of 2mAcm−2 and a open circuit voltage of 625mV. [Copyright &y& Elsevier]
- Published
- 2007
- Full Text
- View/download PDF