Iodine-free high efficient quasi solid-state dye-sensitized solar cell containing ionic liquid and polyaniline-loaded carbon black
- 2 February 2010
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 20 (12), 2356-2361
- https://doi.org/10.1039/b922350a
Abstract
An incombustible and non-volatile paste with carbon black (CB), a conducting polymer (CP), and an ionic liquid (1-buty-3-methylimidazolium iodide, BMII or 1-methyl-3-propyl imidazolium iodide, PMII) was placed between the dye-sensitized porous TiO2 and the Pt counter electrode to fabricate a quasi solid-state DSSC, without the addition of iodine. While the solar-to-electricity efficiencies (η) were measured to be 4.38% and 3.68% for the cells with PMII/CB and BMII/CB, respectively, the corresponding values without CB were 0.6% and 0.3%; indicating the remarkable role played by the carbon material in the electrolyte. When the CB was replaced with polyaniline-loaded carbon black (PACB), an efficiency of 5.81% was obtained, at 100 mW cm−2 AM1.5 illumination using PMII, the highest ever reported for a quasi solid-state DSSC made without iodine. High thermal stability up to 250 °C for each component in the composite electrolytes was confirmed by thermogravimetric analyses (TGA). At-rest durability of the DSSC with PACB was studied both at room temperature and at 70 °C and was found to be far superior to that of a cell with an organic solvent electrolyte. Electrochemical impedance spectroscopy (EIS) and dark current measurements were used to substantiate the results.Keywords
This publication has 34 references indexed in Scilit:
- Improved stability of quasi-solid-state dye-sensitized solar cell based on poly (ethylene oxide)–poly (vinylidene fluoride) polymer-blend electrolytesJournal of Power Sources, 2008
- A Thermoplastic Gel Electrolyte for Stable Quasi‐Solid‐State Dye‐Sensitized Solar CellsAdvanced Functional Materials, 2007
- Dual-functional materials for interface modifications in solid-state dye-sensitised TiO2 solar cellsApplied Physics A, 2004
- Dye-Sensitized Solid-State Photovoltaic Cells Based on Dye Multilayer−Semiconductor NanostructuresThe Journal of Physical Chemistry B, 2003
- Improvement of the photovoltaic performance of solid-state dye-sensitized device by silver complexation of the sensitizer cis-bis(4,4′-dicarboxy-2,2′bipyridine)-bis(isothiocyanato) ruthenium(II)Applied Physics Letters, 2002
- Dye-Sensitized Solid-State Solar Cells: Use of Crystal Growth Inhibitors for Deposition of the Hole CollectorChemistry of Materials, 2002
- Quasi-Solid-State Dye-Sensitized TiO2 Solar Cells: Effective Charge Transport in Mesoporous Space Filled with Gel Electrolytes Containing Iodide and IodineThe Journal of Physical Chemistry B, 2001
- High efficiency solid-state photovoltaic device due to inhibition of interface charge recombinationApplied Physics Letters, 2001
- Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficienciesNature, 1998
- A solid-state photovoltaic cell sensitized with a ruthenium bipyridyl complexJournal of Physics D: Applied Physics, 1998