Effect of Thermal Processes on the Electrical and Optical Properties of Fe2TiO5 Ceramics

4th International Conference on Advanced Materials Science and Technology

Fajarin, R.^1 ; Widyastuti^1 ; Baqiya, M.A.^2 ; Putri, I.Y.S.^1

Department of Materials and Metallurgical Engineering, Institut Teknologi Sepuluh Nopember (ITS) Surabaya, Kampus ITS, Surabaya

60111, Indonesia^1

Department of Physics, Institut Teknologi Sepuluh Nopember (ITS) Surabaya, Kampus ITS, Surabaya

60111, Indonesia^2

关键词: Electrical and optical properties;    Electrical conductivity;    Mechanical milling;    Multiferroic properties;    New applications;    Pseudobrookite;    Thermal process;    UV-vis-diffuse reflectance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/202/1/012067/pdf
DOI  :  10.1088/1757-899X/202/1/012067

来源: IOP

【 摘 要 】

Pseudobrookite (Fe2TiO5) is one of the Fe-Ti oxides that have been commonly studied. It is the most stable phase among the Fe-titanates. The multiferroic properties of Fe2TiO5make the material can be used as a potential candidate for new applications due to the combination of semiconducting, magnetic, dielectric, and optical properties. In this research, Fe2TiO5ceramics were synthesized using mechanical milling method for 7 h with various temperatures of 1100 °C, 1200 °C, and 1300 °C. Scanning electron microscopy (SEM) observation and x-ray diffraction (XRD) measurements were performed to analyze the microstructures and crystal structures of the Fe2TiO5ceramics. In order to investigate the band gap of the Fe2TiO5, the UV-Vis Diffuse Reflectance measurements were conducted. It has been found that the Fe2TiO5ceramic can be applied as a promising candidate for semiconducting devices in which the electrical conductivity and the band gap of the Fe2TiO5ceramic were 1.73 × 10-7Ω-1.cm-1and 1.71 eV, respectively.