Fabrication, Characterization, Properties, and Applications of Low‐Dimensional BiFeO₃ Nanostructures

Abstract

Low-dimensional BiFeO 3 nanostructures (e.g., nanocrystals, nanowires, nanotubes, and nanoislands) have received considerable attention due to their novel size-dependent properties and outstanding multiferroic properties at room temperature. In recent years, much progress has been made both in fabrications and (microstructural, electrical, and magnetic) in characterizations of BiFeO 3 low-dimensional nanostructures. An overview of the state of art in BiFeO 3 low-dimensional nanostructures is presented. First, we review the fabrications of high-quality BiFeO 3 low-dimensional nanostructures via a variety of techniques, and then the structural characterizations and physical properties of the BiFeO 3 low-dimensional nanostructures are summarized. Their potential applications in the next-generation magnetoelectric random access memories and photovoltaic devices are also discussed. Finally, we conclude this review by providing our perspectives to the future researches of BiFeO 3 low-dimensional nanostructures and some key problems are also outlined.

Synergetic Catalytic and Photocatalytic Performances of Tin-Doped BiFeO3/Graphene Nanoplatelet Hybrids under Dark and Light Conditions

“…Hence, with the band gap tuning of initial semiconductors, bismuth ferrite (BiFeO 3 /BFO) became a fascinating candidate in the photocatalysis field. , BFO belongs to the perovskite ABO3 type multiferroic materials with a band gap of 2.01 eV . The exceptional characteristics of this material made it a potential candidate in many scientific applications. − Further it has been proven that, with doping, the bandgap of these materials can be modified to perform an efficient photocatalytic activity. − Different ions have been doped inside the A and B sites of BFO to compensate for the challenges related to defects (Bi and O vacancies) as well as Fe ions valence fluctuations. Among these Tin (Sn 4+ ) has also been investigated to reduce the overall leakage current of the BFO structure and to improve its magnetic moment .…”

“… 13 The exceptional characteristics of this material made it a potential candidate in many scientific applications. 14 − 16 Further it has been proven that, with doping, the bandgap of these materials can be modified to perform an efficient photocatalytic activity. 17 − 19 Different ions have been doped inside the A and B sites of BFO to compensate for the challenges related to defects (Bi and O vacancies) as well as Fe ions valence fluctuations.…”

Effect of calcination temperature on magnetic, structural, thermal and optical properties of BFO-T nanoparticles

“…Multiferroic BFO are also known for its intriguing optical properties such as light-induced size changes, anomalous photovoltaic effect, persistent photoconductivity and switchable diode effects [8]. At the nanoscale BFO exhibit tremendous novel physical properties that are different from the bulk counter parts which make them potential candidates for the use in future electronic nano devices [9]. Further, due to its narrow band gap (2.1-2.7 eV) and high chemical stability, it has enormous appliances as photo catalyst for the waste water treatment [10,11].…”

Synthesis of Bismuth Ferrite for Photoelectrochemical Water Splitting

“…film BFO. These routes include sol-gel method [58][59][60][61][70][71][72][73][74][75] , pulsed-laser deposition (PLD) method [61][62] , chemical vapor deposition (CVD) 61,63 , and many others. Table 2.1 summarizes the most commonly used methods for the preparation of BiFeO3 material with different morphologies.…”

“…We will start with brief introduction to sol-gel synthesis process for more understanding on the principle and procedure of this method. 53 , hydrothermal synthesis 66,74,80 , co-precipitation 53 , and sol-gel process 66 . In our present work, we have synthesized BFO thin films using the sol-gel route due to its ease of preparation and low cost.…”