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Fabrication of Bilayer Fe2O3/ZnO Photoanode and Its Photoelectrochemical Performance
M Tommy Hasan Abadi (1), Putri Nuraini (1), Nandang Mufti (1,2,*), Yudyanto (1), Robi Kurniawan (1)

(1) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang Jl. Semarang 5, Malang 65145, Indonesia
(2) Centre of Advanced Materials for Renewable Energy, Universitas Negeri Malang Jl. Semarang 5, Malang 65145, Indonesia
*corresponding author: nandang.mufti.fmipa[at]um.ac.id


Abstract

Hematite (Fe2O3) is one of the magnetic materials which abundant in nature. Ability absorb in region visible light and electrochemical stability makes this material potential using photoanode for PEC cells. however, the disadvantages is short hole diffusion length (<5 nm) and low hole mobility is necessary combined with other materials to improve photolectrochemicals performances. Among of the way to improve performance of photoelectrochemical cell is to make a bilayer structure of hematite material with Zinc Oxide (ZnO) material. ZnO materials are choosen because of their superiority in electron mobility, band gaps wider than Fe2O3, able to capture light in the UV spectrum, and are easily fabricated. In this study we reported the manufacture of Fe2O3 / ZnO photoanodes on ITO substrates using spin coating techniques and doctor blade methods. XRD characterization was used to determine the crystal structure of Fe2O3 / ZnO. The bilayer arrangement and morphology of Fe2O3 / ZnO as a photoanode are confirmed by the results of cross section and electron microscope. While photoelectrochemical ability is shown by the efficiency value of the results of testing Cyclic Voltammetry.

Keywords: Fe2O3/ZnO, photoanode, Photoelectrochemical Performance, spin coating

Topic: Magnetic Methods

Link: https://ifory.id/abstract/xqbdwnCPRteY

Conference: International Conference on Electromagnetism, Rock Magnetism and Magnetic Material (ICER3M 2019)

Plain Format | Corresponding Author (M Tommy Hasan Abadi)

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