Topographic characterization of (Zr, Mn) co‐doped bismuth ferrite thin film surfaces

다국어 초록 (Multilingual Abstract)

The present work focuses on the investigations on the optical and morphological characteristics of (Zr, Mn) co‐doped Bismuth ferrite thin films. Undoped Bismuth ferrite (BiFeO3) and (Zr, Mn) co‐doped Bismuth ferrite (ZMBFO) thin films were spin‐coated on Pt/TiO2/Ti/SiO2/Si substrate. X‐ray diffraction (XRD) was utilized to confirm the rhombohedral structure and the Scherrer formula was used to calculate the crystallite size of the films. The optical properties were explored using UV–visible spectroscopy and the bandgap energies were calculated using a Tauc plot. The surface morphology of the films was explored with the help of atomic force microscopy (AFM) and the three‐dimensional (3‐D) surface features were determined using stereometric analyses. The variation of 3‐D surface parameters was identified to be the consequence of doping.

BFO and ZMBFO thin films have been prepared by the sol–gel spin coating technique
The lattice parameters of the BFO thin films are greater than of the ZMBFO thin films
The average crystallite size of BFO and ZMBFO is 32 nm, and 36 nm, respectively
Stereometric analysis revealed a most irregular surface and topography for BFO thin films