Analysis of electrochemically deposition ZnO as photoanode for solar cells

Zamberi, Aina Maisarah (2022) Analysis of electrochemically deposition ZnO as photoanode for solar cells. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

A solar cell, also known as a photovoltaic cell, is one of the most promising renewable energy available. There are many methods to deposit a photoanode layer of DSSC, such as doctor blade, sputtering and spin coating; however, there are limitations to each of the methods. Electrochemical deposition, which is a three electrode method, is a cost-effective method for depositing metal, metallic oxide, and composites. The three-electrode method can also control the coating's thickness and chemical composition by varying the deposition potential/current. Zinc Oxide (ZnO) is an n-type semiconductor with a wide bandgap energy value lying in the range of 3.37 eV. ZnO layers were deposited using an electrodeposition method by varying the solution's deposition time and molarity. The potential difference used in this experiment was -0.61V based on the cyclic voltammetry and chronoamperometry using a potentiostat and NOVA software. The qualities of the deposited ZnO have been studied using Scanning Electron Microscopy (SEM) and Ultraviolet-Visible Spectroscopy (UV-Vis) to find out their characterizations. This research emphasized the Analysis of Electrochemical Deposition ZnO as Photoanode for Solar Cells.

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