Structural and Morphological Properties of Fe2O3 and TiO2:Fe2O3 Thin Films Prepared by Spray Pyrolysis Technique

Asia Hussein Kadhim,Nahida B Hasan

doi:10.31257/2018/jkp/2019/110105

Abstract

Various doping percentage (1, 3 and 5 %) of titanium dioxide TiO2 were successfully introduced into the iron oxide Fe2O3 thin films obtained by spray pyrolysis technique (SPT) on a glass substrate. The effect of TiO2 doping on structural and morphological properties of deposited thin films was studied by X-ray diffraction analysis and atomic forces microscope (AFM) respectively. XRD result showed that all samples are polycrystalline and the crystallite size decreases with the increasing percentage of (TiO2). All films have peaks appears at (110), (211), (101), (222), (210), (202), (312), (332), (310) and (432) planes with preferred orientation along (211). The (AFM) results show that the grain size, roughness rate, and the root mean square decreases with increasing dopant ratios.

Highlights

Iron oxide exist in three stoichiometric forms namely magnetite (Fe3O4), maghemite and hematite (α-Fe2O3) [1]
The Table (3) shows the roughness for pure Fe2O3 and TiO2:Fe2O3 thin films and the root mean square (RMS), where results decreases in roughness rate and the root mean square (RMS) with increasing the doping ratios it obvious that surface is smooth [25]
Pure and doped Fe2O3 thin films have been successfully deposited on glass substrates at 450 °C using spray pyrolysis technique

Summary

INTRODUCTION

Iron oxide exist in three stoichiometric forms namely magnetite (Fe3O4), maghemite (γFe2O3) and hematite (α-Fe2O3) [1]. Titanium dioxide TiO2 (titania) is a cheap, non-toxic and one of the most efficient semiconductor photocatalysts for extensive environmental applications because of its strong oxidizing power, high photochemical corrosive resistance and cost effectiveness. Due to these inherent properties, TiO2 is the most suitable candidate for degradation and complete mineralization of toxic organic pollutants in water [8]. The effect of doping with TiO2 has been studied on structural and morphological properties of Fe2O3 thin films have been deposited by chemical spray pyrolysis before and after doping

EXPERIMENTAL DETAILS

Structural properties

CONCLUSION