Introduction to Doped Bifeo3

Co-, Ni-, and Mn-doped BiFeO3 (BFO) ceramics were synthesized herein through a solid-state reaction.

We previously reported the synthesis routes and improved photocatalytic properties of 10% Ti-doped BiFeO3 (BiFe0.

The discovery of these multi-MPBs in La-doped BiFeO3 thin films further enhance the electromechanical coupling response comparing with the previous observed MPB in pure BiFeO3, opening a new field to obtain high-performance piezoelectric materials.

Herein, nanoparticles of undoped and cobalt (10 mol %) doped BiFeO3 are synthesised using citrate precursor technique and annealed at different temperatures (500 °C, 550 °C, and 600 °C).

This report highlights improved ferroelectric polarization switching and electromechanical responses in (Nd, Mn) co-doped BiFeO3 ceramics via modulation of the B-site Mn substitution.

XRD confirmed the phase pure formation of pristine BiFeO3, and cobalt doped BiFeO3 samples.

These results make La-doped BiFeO3 NPs a propitious candidate for the multiferroic applications like high-density data storage devices and supercapacitors.

In this work, polycrystalline Mn and Ti co-doped BiFeO3 (BFO) thin films were fabricated on platinized silicon substrates by a solution deposition method.

Superlattice-structured epitaxial thin films composed of Mn(5%)-doped BiFeO3 and BaTiO3 with a total thickness of 600 perovskite (ABO3) unit cells were grown on single-crystal SrTiO3 substrates by pulsed laser deposition, and their polarization and dielectric properties were investigated.

The morphological characteristics show that the average particle sizes of the Mn-doped BiFeO3 nanoparticles were decreased as compared with that of the original BiFeO3.

Herein, a narrow bandgap of Ca-doped BiFeO3 (BCFO) is synthesized by a simple auto combustion method.

Barium doped BiFeO3 and Cobalt doped Bi0.

Mn-doped BiFeO3 samples exhibit a weak ferromagnetic response because of the effect of Mn in the Fe site which uncurls the spiral spin ordering by altering the canting angle.

In this case, a novel approach was designed to improve the photocurrent density of BiFeO3 through the cooperative effect of the gradient distribution of oxygen vacancies and consequently induced the flexoelectric effect realized in the (La, Co) gradient-doped BiFeO3 multilayers.

This work demonstrates an enhancement of the external quantum efficiency (η ex) associated with the bulk photovoltaic effect (BPVE) resulting from the ballistic conduction of hot carriers in indium tin oxide/Mn-doped BiFeO3 (BFMO)/SrRuO3 capacitors in response to a blue–violet laser (λ = 405 nm).

Samarium doped BiFeO3 compounds having nano-size crystallites were prepared by the ethylene glycol assisted sol-gel synthesis method.

To demonstrate this idea, Ti-doped BiFeO3 (BFTO) lead-free ferroelectric material was explored as an active material in Pt/CuCrO2/BFTO/WS2/ITO PV cell where WS2 formed the n-type electron transport material (ETL), an unconventional p-type CuCrO2 was responsible for the hole-transportation (HTL) and bottom ITO and Pt top electrodes, were employed to extract the electrical properties of the device.

The structural stability and magnetic properties of Pr doped BiFeO3 (Bi0.

32 nm for La/Ba doped BiFeO3.

For this purpose, a series of La and Cr doped BiFeO3 was synthesized using sol‒gel auto-combustion technique.

In this study, such problems were addressed through the development of samarium and cerium-doped BiFeO3 (BFO) nanoparticles (NPs) (BixRExFeO3; RE = Sm, Ce, x = 0.

A combination of impedance spectroscopy, time-of-flight secondary ion mass spectrometry and literature data are used to show that, (i) the bulk oxide ion conductivity of A-site, alkaline earth-doped BiFeO3 (BF) is independent of the ionic radius of the alkaline earth ion (Ca, Sr, Ba) and, (ii) despite very different A-site environments in (Na1/2Bi1/2)TiO3 and BF, similar high levels and optimisation of bulk oxide ion conductivity in these Bi-based tilted perovskites is achieved at modest acceptor doping levels of ∼1-10%.

6% using La-doped BiFeO3/rGO.

In the (La, Co) co-doped BiFeO3 samples, a structural transition from a rhombohedral to orthorhombic structure was observed via X-ray diffraction.

The magnetic characteristics show that the Nd-doped BiFeO3 (for x = 0.

A series of Sr-doped BiFeO3 perovskites (Bi1-xSrxFeO3, BSFO) fabricated via sol-gel method was applied as peroxydisulfate (PDS) activator for ciprofloxacin (CIP) degradation.

Based on the crystal structure as well as on the dielectric, ferroelectric, and piezoelectric properties, a phase diagram is constructed for La-doped BiFeO3 BaTiO3 ceramics.

Pr and Co co-doped BiFeO3 multiferroics of the following composition BiCoxPrxFe1-2xO3, where (x = 0.

The coexistence of magnetism and ferroelectricity in the doped BiFeO3 render it a candidate material for application to information storage and spintronics devices.

In the present work, the hydrogen sensing characteristics of calcium doped BiFeO3 has been reported by varying the film thickness, doping concentration, operating temperature, and test gas concentration.

Multiferroic Y-doped BiFeO3 (BY10FO) thin films were deposited on FTO coated glass substrate using sol-gel spin coating technique.

3TiO3 doped BiFeO3 is a promising multiferroic material.

This approach is illustrated for the La-doped BiFeO3 system.

The interaction of BiFeO3 and Co-doped BiFeO3 thin film surfaces with water vapor is examined using photoelectron spectroscopy.

Thus, lattice OV created when only Ca2+ is substituted in BiFeO3 are charge compensated in Ca and Ti codoped BiFeO3.

Frequency dependent dielectric measurements at room temperature reveal maximum value of the dielectric constant for 4% Mn doped BiFeO3 at lower frequencies.

Pure and (8%, 12% and 16 wt%) Co-doped BiFeO3 (BFO) samples were synthesized by the gel-combustion method.

We investigated the growth characteristics and multiferroic properties of BiFeO3 (BFO) and Yb-doped BiFeO3 (Bi0.

The study has made on Ni-doped BiFeO3 (BFO) thin films principally its magnetic properties.

Analysis of the data obtained from diffractometer confirmed the corresponding crystalline phases of Mn-doped BiFeO3 and NiFe2O4.

BiFeO3 and La doped BiFeO3 nano-particles were synthesized and decorated on anodic aluminum oxide templates to explore its various physical properties.

In this research work, the Ni, Mg, and Ni–Mg co-doped BiFeO3 nanoparticles were synthesized via a sol–gel method.

600 mV magneto-electric switching in 30 nm La-doped BiFeO3 multiferroic oxide and a proof of concept 7 μV spin-orbit signal output in Pt / CoFe local spin injection device with 100 μA supply current were experimentally demonstrated at room temperature for the 1st time.

The remanent polarization Pr and remanent magnetization Mr for different Sm-concentrations x in Sm-doped BiFeO3 is investigated using a microscopic model and the Green's function technique.

Pure BiFeO3 and single phase Li-doped BiFeO3 were detected from XRD pattern.

In the present work, Er-doped BiFeO3 (BFO) nanoparticles (Bi(1−x)ErxFeO3, where x = 0.

The physical properties (structural, dielectric, electric and magnetic) are tailored in Li and Mo co-doped BiFeO3.

In this work, BiFeO3 and Eu-doped BiFeO3(Bi0.

X-ray diffraction (XRD) confirmed the phase purity of pristine BiFeO3 and 1% Cr-doped BiFeO3 NPs.

Mg-doped BiFeO3 (Bi1−xMgxFeO3 (0.

Stress-induced local polarization reversal was studied in La doped BiFeO3 ceramics under the action of Berkovich-type prism indentation.

Facile sol-gel synthesis method was used to prepare Selenium (Se) and Lanthanum (La) co-doped BiFeO3 nanoparticles for soft and hard ferromagnetic applications.

Despite this interest, many fundamental properties and the structure-property correlations of RE-doped BiFeO3 remain poorly understood.

Noticeably large ferromagnetism and enhanced dielectric constant have been observed in 10% Cobalt doped BiFeO3 multiferroics.

A new explanation of ferroelectric origin and distortion modes in doped BiFeO3 by the Defect Dipoles Driven Distortions Theory (abbreviate DDD) from crystallography is reported.

Rare-earth element-doped BiFeO3 has an ultrahigh piezoelectric response near the morphotropic phase boundary (MPB), making it a promising substitute for toxic lead-based piezoelectric materials.

Herein, magnetic phase transitions within low-temperature regimes, ferroelectric phase transitions under high temperature, structural instability evolution, and spin-phonon coupling in 5% La-doped BiFeO3 ceramic (BFLa05) were systemically studied by employing X-ray diffraction, differential scanning calorimetry, Raman spectroscopy, and magnetic measurement, as well as the phenomenological theoretical analysis.

In this study, the structural, magnetic, electric and optical properties in X (X=F, N, S) and Cr co-doped BiFeO3 (BFO) are calculated using the density functional theory.

Visible light driven photocatalytic property of nickel doped BiFeO3 nanoparticles were explored from the degradation of Acid red-85 dye.

This investigation suggests a straightforward method for the C-steel coating by two different doped BiFeO3 (BFO) nanomaterials, specifically Ce and Sm doped BFO nanoflakes for protection against corrosion.

XRD analysis has shown a significant reduction in crystallite size to 25 nm from 68 nm of un-doped BiFeO3.

Gd and Sn co-doped BiFeO3 nanoparticles were synthesized by sol-gel route and Bi0.

We report on the stability and systematic expansion of the length of the spin cycloid in (110)-oriented epitaxial Co-doped BiFeO3 thin films.

5 J cm−3) and efficiency (η = 87%) have been obtained in doped BiFeO3–BaTiO3 ceramic multilayers by achieving an electrically rather than chemically homogeneous microstructure.

The Al-doped BiFeO3, i.

Multiferroic Dy and transition metals (Cr, Mn, Ni) co-doped BiFeO3 ceramics were successfully synthesized by a solid-state method, and the influence on the magnetic and ferroelectric properties were investigated.

This paper reported the synthesis of the Ni, Sm co-doped BiFeO3 film capacitors by a spin-coating technology.

Al doped BiFeO3-BaTiO3 (BFA-BT) systems with a defined composition were prepared by a conventional solid-state method.

We show that FSM explains the coexistence of rhombohedral (R), orthorhombic (O) and spatially modulated (SM) phases, observed by atomic-resolution STEM in La-doped BiFeO3.

Sintering process at 870 °C for 6 h of as-prepared, Gd doped BiFeO3 powders resulted in ceramic samples with relative densities in the range of (74–86) %.

A simple sol-gel technique is used to synthesize zero-dimensional pure and Er-doped BiFeO3 (BFO) nanoparticles.

The obtained products were characterized and the photocatalytic effect of doped and undoped BiFeO3 were evaluated on the degradation of methylene blue (MB) under direct sunlight.