Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jpowsour.2010.08.095
Title: Co-existence of LiI and KI in filler-free, quasi-solid-state electrolyte for efficient and stable dye-sensitized solar cell
Authors: Agarwala, S.
Thummalakunta, L.N.S.A.
Cook, C.A.
Peh, C.K.N.
Wong, A.S.W.
Ke, L.
Ho, G.W. 
Keywords: Dye-sensitized solar cell
Efficiency
Light-scattering
Quasi-solid-electrolyte
Titanium dioxide
Issue Date: 1-Feb-2011
Citation: Agarwala, S., Thummalakunta, L.N.S.A., Cook, C.A., Peh, C.K.N., Wong, A.S.W., Ke, L., Ho, G.W. (2011-02-01). Co-existence of LiI and KI in filler-free, quasi-solid-state electrolyte for efficient and stable dye-sensitized solar cell. Journal of Power Sources 196 (3) : 1651-1656. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jpowsour.2010.08.095
Abstract: A quasi-solid-state electrolyte employing a poly (ethylene oxide)/LiI system without a filler is evaluated. The electrolyte is optimized for various potassium iodide (KI) concentrations. The electrolyte containing 14.5 wt.% KI exhibits the highest conductivity (3.0 × 10-3 S cm -1). An efficiency of 4.5% is achieved using this composition of the electrolyte. It is shown that the introduction of KI in a conventional PEO/I2/LiI electrolyte system prevents the crystallization of the polymer matrix and enhances the ionic conductivity. The energy conversion efficiency of the device is further enhanced to 5.8% by incorporating a light-scattering layer. © 2010 Elsevier B.V.
Source Title: Journal of Power Sources
URI: http://scholarbank.nus.edu.sg/handle/10635/82061
ISSN: 03787753
DOI: 10.1016/j.jpowsour.2010.08.095
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