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Highly efficient plastic-based quasi-solid-state dye-sensitized solar cells with light-harvesting mesoporous silica nanoparticles gel-electrolyte.
- Source :
-
Journal of Power Sources . Jan2014, Vol. 245, p411-417. 7p. - Publication Year :
- 2014
-
Abstract
- Abstract: A quasi-solid-state gel-electrolyte containing mesoporous silica nanoparticles (MSNs) capable of light-scattering is applied to plastic-based dye-sensitized solar cells (DSSCs). The MSNs based gel-electrolyte exhibits higher reflectance in the visible wavelength and contains nanometer-sized pores to facilitate the I−/I3 − ion diffusion and increase the ionic conductivity of the gel-electrolyte. Linear sweep voltammetry (LSV) measurements and electrochemical impedance spectra (EIS) are used to substantiate the explanations. Optimization on both the wt% of MSNs and the I2 concentration (i.e., 10 wt% of MSNs and 0.02 M of I2) of the gel-electrolyte give the best cell performance with a light-to-electricity conversion efficiency (η) of 5.45% under illumination of 100 mW cm−2. A mechanism for enhanced efficiency is proposed regarding the role of MSNs. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 245
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 90011057
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2013.06.142