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TiO2micro/nano-composite structured electrodes for quasi-solid-state dye-sensitized solar cells
- Source :
- Nanotechnology. 17:2090-2097
- Publication Year :
- 2006
- Publisher :
- IOP Publishing, 2006.
-
Abstract
- Micro/nano-composite TiO2 porous films are prepared in a nutshell by the electro-hydrodynamic (EHD) method, and are applied to dye sensitized solar cells (DSSCs) successfully. Considering that micro/nano-composite structures based on the EHD technique are better for the filling of ionic liquid and quasi-solid-state electrolytes than liquid state electrolytes, a fill factor (ff) of 78.9% and a total photoelectric conversion efficiency (?) of 6.4% for ionic liquid electrolyte and an ff of 75.3% and an ? of 5.3% for quasi-solid-state electrolyte are obtained. Moreover, this kind of composite hierarchical structure may be of benefit for light collection because of strong light scattering. In order to obtain optimized devices, we probe into the influence of adding an amount of polymer on the photovoltaic performance, and find that by changing the concentration of the polymer during the EHD process the specific surface area of the films changes, which leads to different photovoltaic behaviour of solar cells.
- Subjects :
- chemistry.chemical_classification
Materials science
Chromatography
Mechanical Engineering
Photovoltaic system
Composite number
Bioengineering
General Chemistry
Electrolyte
Polymer
Polymer solar cell
Dye-sensitized solar cell
chemistry.chemical_compound
chemistry
Chemical engineering
Mechanics of Materials
Ionic liquid
General Materials Science
Electrical and Electronic Engineering
Quasi-solid
Subjects
Details
- ISSN :
- 13616528 and 09574484
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Nanotechnology
- Accession number :
- edsair.doi...........6397b6788a316b95f86a609027b6ef0f