Abstract
We successfully synthesized three zeolites (i.e., zeolite-XF7, zeolite-X&AF, and zeolite-XF12) by new synthesis methods using acetic acid treatment of non-magnetic coal fly ash (FA). The synthesized zeolites were characterized by various surface analysis and used as quasi-solid-state electrolytes for dye-sensitized solar cells (DSSCs). Compared to nano-gel electrolytes based DSSCs showing almost 3.8% of cell efficiency, the enhanced cell efficiencies were obtained from zeolite-XF12 (6.0%), XF7 (5.0%) and X&A (4.8%), respectively. The enhanced performance by zeolite-XF12 was resulted from effective light harvesting properties of quasi-solid-state electrolyte, reduction of resistance at photoanode/electrolyte interface, and decrease in charge recombination.
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