Abstract
This work focuses on the microwave assisted synthesis of polythiophene–molybdenum sulfide (PTh/MoS2) composite as a counter electrode (CE) in dye sensitized solar cell (DSSC). The structural characterizations of the prepared samples were examined through different techniques including FT-IR spectroscopy, FESEM, EDAX, XRD, and XPS. The cyclic voltammetry and electrochemical impedance spectroscopy results shows that the composite possesses better electro-catalytic activity with 22% lower charge transfer resistance in comparison with PTh which is in good agreement with Tafel curves results. The DSSC fabricated with PTh/MoS2 composite as CE exhibited a short circuit density (JSC) of 6.01 mA cm−2, fill factor of 0.5 and power conversion efficiency (η) of 1.36% which is 38% higher than the cell fabricated with PTh under full light illumination (100 mW cm−2 AM 1.5G). Hence the high performance PTh/MoS2 composite can be potentially used as a cost effective and efficient counter electrode for dye sensitized solar cell.
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