Enhanced Performance of Dye‐Sensitized Solar Cells (DSSCs) Based on MoS<sub>2</sub>/Single‐Walled Carbon Nanohorns Electrochemically Deposited on Bilayer Counter Electrodes
M. Gurulakshmi, Meenakshamma Ambapuram, K. Susmitha, Y.P. Venkata Subbaiah, Raghavender Mitty
Abstract
Abstract High‐performance bilayer counter electrodes (BCEs) for dye‐sensitized solar cell (DSSC) applications are gaining considerable attention. In this study, MoS 2 /single‐walled carbon nanohorn (SWCNHs) BCEs were fabricated by ultrasonic‐spray‐assisted electrochemical deposition. The BCEs exhibited superior electrocatalytic activity, confirmed through CV, Tafel plots, and electrochemical impedance spectroscopic studies. The fabricated MoS 2 /SWCNH‐based DSSCs exhibited an impressive photovoltaic power conversion efficiency of 9.48 %, which is higher than the performance of cells with Pt‐containing CEs (8.64 %). The simple and reliable growth strategy for bilayer film CEs provides a new route for the preparation of cost‐effective and high‐performance catalytic BCEs for renewable energy applications involving Pt‐free DSSCs.