Influence of Iodide Concentration on the Efficiency and Stability of Dye‐Sensitized Solar Cell Containing Non‐Volatile Electrolyte
- 24 July 2009
- journal article
- research article
- Published by Wiley in Chemphyschem
- Vol. 10 (11), 1834-1838
- https://doi.org/10.1002/cphc.200900199
Abstract
Dye-sensitized solar cells based on nanocrystalline TiO2 have been fabricated with an amphiphilic ruthenium sensitizer NaRu(4-carboxylic acid-4′-carboxylate)(4,4′-dinonyl-2,2′-bipyridine)(NCS)2, coded as Z-907Na, and a series of non-volatile 3-methoxyproprionitrile (MPN)-based electrolytes with different concentration of 1-methyl-3-propylimidazolium iodide (PMII). The short-circuit photocurrent density increases with increasing iodide concentration until at 1.5 M practically quantitative dye regeneration is achieved as proved by time-resolved laser experiments. Devices containing 1.0 M PMII electrolyte show excellent stability during long-time thermal aging at 80 °C and under light soaking at 60 °C.Keywords
This publication has 20 references indexed in Scilit:
- High performance dye-sensitized solar cells using ionic liquids as their electrolytesJournal of Photochemistry and Photobiology A: Chemistry, 2004
- A New Ionic Liquid Electrolyte Enhances the Conversion Efficiency of Dye-Sensitized Solar CellsThe Journal of Physical Chemistry B, 2003
- A stable quasi-solid-state dye-sensitized solar cell with an amphiphilic ruthenium sensitizer and polymer gel electrolyteNature Materials, 2003
- Nanocrystalline Titanium Oxide Electrodes for Photovoltaic ApplicationsJournal of the American Ceramic Society, 1997
- Light-Induced Redox Reactions in Nanocrystalline SystemsChemical Reviews, 1995
- A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 filmsNature, 1991
- Effect of exchange reactions on transport processes: A comparison of thermodynamic treatment with random walk on lattice pointsThe Journal of Chemical Physics, 1985
- Transfer diffusion. III. Kinetics and mechanism of the triiodide-iodide exchange reactionThe Journal of Physical Chemistry, 1972
- Transfer diffusion. I. TheoreticalThe Journal of Physical Chemistry, 1971
- Electronic conduction in aqueous solutionThe Journal of Physical Chemistry, 1968