Effect of Zr doped Bi site in bismuth ferrite on crystal structure and optical bandgap

F. Fajriyani, D. Triyono

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Bismuth ferrite (BiFeO3) is one of multiferroic which is currently in great demand for research because of its small bandgap. Bi1-xZrxFeO3 (BZFO) where x = 0.01, 0.02, and 0.03 samples have been prepared by the sol-gel method to know the effect brought by Zr doping in site Bi. Structural and optical properties of samples have been studied using XRD, FTIR, Raman, and UV-Vis characterizations. X-ray diffraction study showed the samples have a hexagonal structure with R3c space group. To further explore the structure and study of dopant in material, Raman spectroscopy has been employed. There are 10 modes of Raman shift which confirm the structure of BZFO, where the modes shift towards the lower wavelength. The measurement of various bond formation and vibrations between the atom of BZFO were carried out with Fourier Transformed Infrared (FTIR) spectra. The results showed vibrations of FeO6 and BiO6 at peak 534.26 cm-1 an 431.21 cm-1. Absorbance and reflectance spectra were obtained from UV-Visible diffuse spectroscopy. The bandgap was determined from reflectance spectra using Kubelka-Munk method and was plotted using the Tauc plot. The bandgap is found to be slightly increased with the doped of Zr.

Original languageEnglish
Title of host publicationProceedings of the 5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
EditorsTerry Mart, Djoko Triyono, Tribidasari Anggraningrum Ivandini
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420014
DOIs
Publication statusPublished - 1 Jun 2020
Event5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019 - Depok, Indonesia
Duration: 9 Jul 201910 Jul 2019

Publication series

NameAIP Conference Proceedings
Volume2242
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Symposium on Current Progress in Mathematics and Sciences, ISCPMS 2019
CountryIndonesia
CityDepok
Period9/07/1910/07/19

Keywords

  • BZFO
  • optical band gap
  • sol-gel method
  • structure

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