Cyclic Voltammetry Measurement for n-Type Cu₂O Thin Film Using Copper Sulphate-Based Solution

Abstract:

Cuprous oxide (Cu₂O) is a promising material for solar cell application. Due to its various advantages over silicon material, it has been exploited extensively to be use in photovoltaic cell. Cu₂O thin films were electrodeposited in sulfate-based solution. Cyclic voltammorgram (CV) measurement was used to investigate the reduction process under controlled parameters. Deposition potential of-0.1V vs. Ag/AgCl was used for the fabrication of Cu₂O thin film based on the CV measurement. CV also revealed that the deposition speed was dependent on the bath pH and the temperature. X-ray diffraction (XRD) measurement, Field Emission Scanning-Electron Microscopy (FE-SEM) and Ultraviolet-visible spectroscopy (UV-Vis) were performed to characterize the deposited thin films. The n-Cu₂O was successfully fabricated on FTO glass substrate with (111)-prefered orientation. Surface morphology of the thin films were observed to be in flower-like shape combination with pyramidal and triangular shape.

• Periodical: Key Engineering Materials (Volume 730)
• Pages: 119-124
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.730.119
• Online since: February 2017
• Authors: Fariza Mohamad*, Kah Hao Cheong, Nabiah binti Zinal, Nurliyana binti Mohamad Arifin, Asyikin Sasha binti Mohd Hanif, Nik Hisyamudin Muhd Nor, Masanobu Izaki
• Keywords: CV, Electrodeposition, n-Cu₂O

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