Enhanced Performance of Dye-Sensitized Solar Cells (DSSCs) Based on MoS2 /Single-Walled Carbon Nanohorns Electrochemically Deposited on Bilayer Counter Electrodes

Maddala Gurulakshmi; Ambapuram Meenakshamma; Kalvapalli Susmitha; Yerva Pedda Venkata Subbaiah; Raghavender Mitty

doi:10.1002/cplu.202000558

Enhanced Performance of Dye-Sensitized Solar Cells (DSSCs) Based on MoS₂ /Single-Walled Carbon Nanohorns Electrochemically Deposited on Bilayer Counter Electrodes

Chempluschem. 2020 Dec;85(12):2599-2605. doi: 10.1002/cplu.202000558. Epub 2020 Nov 17.

Authors

Maddala Gurulakshmi¹, Ambapuram Meenakshamma¹, Kalvapalli Susmitha¹, Yerva Pedda Venkata Subbaiah¹, Raghavender Mitty¹

Affiliation

¹ Department of Physics, Yogi Vemana University, Kadapa, A.P. 516005, India.

PMID: 33200885
DOI: 10.1002/cplu.202000558

Abstract

High-performance bilayer counter electrodes (BCEs) for dye-sensitized solar cell (DSSC) applications are gaining considerable attention. In this study, MoS₂ /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 MoS₂ /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.

Keywords: carbon nanostructures; dye-sensitized solar cells; electrodeposition; molybdenum disulfide; spray coating..

Abstract

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