Electrochemical evaluations of reduced graphene oxide for efficient counter electrode in dye-sensitized solar cell

Original scientific paper

Authors

  • Krishna K. Jhankal Department of Chemistry, University of Rajasthan, Jaipur 302004 (India) https://orcid.org/0000-0003-2779-2354
  • Mohammed Saquib Khan Materials Research Centre, Malaviya National Institute of Technology, Jaipur 302017, India https://orcid.org/0000-0002-1418-1549
  • Deependra Jhankal Department of Physics, Malaviya National Institute of Technology, Jaipur 302017, India https://orcid.org/0000-0002-6008-4424
  • Kanupriya Sachdev Department of Physics, Malaviya National Institute of Technology, Jaipur 302017, India and Materials Research Centre, Malaviya National Institute of Technology, Jaipur 302017, India https://orcid.org/0000-0002-1942-2452

DOI:

https://doi.org/10.5599/jese.1977

Keywords:

Carbon nanomaterials, redox electrolyte, defect density, environmentally friendly synthesis, electrochemical performance
Graphical Abstract

Abstract

The design and development of an alternative counter electrode (CE) using graphene-based low-cost material for the dye-sensitized solar cell (DSSC) is the major motivation of the current research to replace the traditional platinum counter electrode. Herein, we prepared reduced graphene oxide (rGO) and investigated it for an efficient CE in DSSC. The structural and morphological properties of rGO are analyzed using FESEM, TEM and Raman techniques. The performance of I3- reduction on the CE is characterized by the EIS Nyquist plot, cyclic voltammetry, and the Tafel curve. The measured electrochemical results suggested that rGO CE has a lower charge transfer resistance (Rct), higher cathodic current density (Jrd), and higher Tafel slope as compared to graphene oxide (GO) CE, revealing that rGO CE has good catalytic activity towards the I3- reduction.

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Published

29-09-2023 — Updated on 29-09-2023

How to Cite

Jhankal, K. K., Saquib Khan, M., Jhankal, D., & Sachdev, K. (2023). Electrochemical evaluations of reduced graphene oxide for efficient counter electrode in dye-sensitized solar cell: Original scientific paper. Journal of Electrochemical Science and Engineering, 13(6), 1051–1061. https://doi.org/10.5599/jese.1977

Issue

Vol. 13 No. 6 (2023)

Section

Photocatalysis/Photoelectrocatalysis

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