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|Title:||Co-existence of LiI and KI in filler-free, quasi-solid-state electrolyte for efficient and stable dye-sensitized solar cell|
|Keywords:||Dye-sensitized solar cell|
|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|
|Appears in Collections:||Staff Publications|
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