Back to Search
Start Over
The effects of polymer gel electrolyte composition on performance of quasi-solid-state dye-sensitized solar cells.
- Source :
-
Journal of Solid State Electrochemistry . Jun2011, Vol. 15 Issue 6, p1271-1277. 7p. 2 Color Photographs, 2 Black and White Photographs, 2 Charts, 4 Graphs. - Publication Year :
- 2011
-
Abstract
- Polymer gel electrolytes based on poly(acrylic acid)-poly(ethylene glycol) (PAA-PEG) hybrid have been prepared and applied to developed quasi-solid-state dye-sensitized solar cells (DSCs). PAA-PEG hybrid was synthesized by polymerization reaction. Quasi-solid-state DSCs were fabricated with synthesized PAA-PEG electrolyte. The effects of alkali iodides LiI, KI, and I concentrations on liquid electrolyte absorbency and ionic conductivity of PAA-PEG were investigated. The evolution of the solar cell parameters with polymer gel electrolyte compositions was revealed. DSCs based on PAA-PEG with optimized KI/I concentrations showed better performances than those with optimized LiI/I concentrations. The electrochemical impedance spectroscopy technique was employed to examine the electron lifetime in the TiO electrode and quantify charge transfer resistances at the TiO/dye/electrolyte interface and the counter electrode in the solar cells based on the PAA-PEG hybrid gels. A maximum conversion efficiency of 4.96% was obtained for DSCs using KI based quasi-solid electrolyte under 100 mW cm. Our work suggests that KI can be the promising alkali metal iodide for improving the performance of PAA-PEG hybrid gel DSCs. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SOLAR cells
*POLYMERS
*ELECTROLYTES
*POLYMERIZATION
*SEMICONDUCTORS
Subjects
Details
- Language :
- English
- ISSN :
- 14328488
- Volume :
- 15
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Solid State Electrochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 60529465
- Full Text :
- https://doi.org/10.1007/s10008-010-1201-y