Effects of solvents and Al doping on structure and physical properties of BiFeO3 thin films

Liang, Xiaoguang; Dai, Jianhui; Zhang, Chang-Chang; Cao, Tian-Fu

doi:10.1007/s10971-021-05489-y

Cited by 8 publications

(3 citation statements)

References 34 publications

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“…There are only a few papers that study the effects of varying the combination of precursor solution agents across experiments. 21,22 Qi et al, found Bi 2 Fe 4 O 9 in the acetic route (i.e. acetate-based solutions using bismuth(III) acetate, iron(III) acetylacetonate, acetic acid precursors) after film sintering and speculated that the Bi evaporation rate is higher for the acetyl solution.…”

Section: Cruse Et Al Manuscript In Preparation)mentioning

confidence: 99%

“…21 The study by Liang et al reported no impurity phases for both, nitric acid and mixed 2ME and glacial acetic acid solutions. 22 To this end, little is known about the effects of solvent engineering solely or combined with chelating agents on the BFO crystallization pathway. Text mining showed that roughly a quarter of the reported syntheses result in phase impurities as depicted in Figure 2d together with the most common impurity phases and their formulae.…”

Section: Cruse Et Al Manuscript In Preparation)mentioning

confidence: 99%

See 1 more Smart Citation

Combining text mining, in situ characterization, and ab initio calculations to rationalize BiFeO3 crystallization pathways

Abdelsamie,

Hong,

Cruse

et al. 2023

Matter

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Section: Cruse Et Al Manuscript In Preparation)mentioning

confidence: 99%

Section: Cruse Et Al Manuscript In Preparation)mentioning

confidence: 99%

Combining text mining, in situ characterization, and ab initio calculations to rationalize BiFeO3 crystallization pathways

Abdelsamie,

Hong,

Cruse

et al. 2023

Matter

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“…Bismuth nitrate and iron nitrate are usually the dissolved precursors using either 2-methoxyethanol (MOE) [2] or acetic acid with MOE (AA-MOE) [10][11][12] to form the solution. Several layers of this solution are deposited on a substrate to reach the desired thickness.…”

Section: Introductionmentioning

confidence: 99%

Optical, conductive, and ferroelectric properties of the first layer of dip-coated BiFeO₃ films from methoxyethanol and acetic acid-based chemical dissolvents

Diliegros-Godines,

Flores-Ruiz

2024

Semicond. Sci. Technol.

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The overall performance of the multilayer resulting in a sol-gel BiFeO3 film will be primarily determined by the properties of the first layer, but this has yet to receive much attention, even though chemical and morphological defects of this layer can accumulate as the number of layers increases. Here, we perform an optical, conductive, and ferroelectric study of first layer (L1) dip-coating sol-gel BiFeO3 films using two routes that vary only in the dissolvent; the first one is based on 2-methoxyethanol (MOE), and the second one on acetic acid (AA) with some MOE (AA-MOE). Tauc plots reveal a band gap of 2.43 eV and 2.75 eV for MOE (30±5 nm thick) and AA-MOE (35±5 nm thick) films, respectively. MOE films showed a dielectric function with features at ~2.5 eV, ~3.1 eV, and ~3.9 eV, which were associated with charge-transfer transitions, but such features are absent in AA-MOE films. Advanced atomic force microscopy (AFM) techniques were used to identify the fine features or defects of the BiFeO3 films: The conductive maps show that the charge transport pathways in both film routes are controlled by nanometer defects rather than grain or grain boundary defects. Current-voltage curves reveal high conductive pathway at a lower voltage for the MOE films than for AA-MOE films. The piezoelectric coefficient for MOE films was ~20% higher than AA-MOE films. Both deposition methods yield ferroelectric films with an electromechanical strain controlled by the piezoelectric effect and minimal contribution from electrostriction. An optimization for the AA-MOE-based route in the withdrawal speed results in a significant reduction of morphological defects and a more than twofold increase in the piezoelectric coefficient. Our results broaden the understanding of optical and ferroelectric BiFeO3 films based on a chemical solution by dip-coating.

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Comparison of sol–gel and hydrothermal synthesis methods on the physical, and photocatalytic properties of Bi1−xCexFe1−xAlxO3 ferrites

Adineh,

Gholizadeh

2024

J Mater Sci: Mater Electron

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Effects of solvents and Al doping on structure and physical properties of BiFeO3 thin films

Cited by 8 publications

References 34 publications

Combining text mining, in situ characterization, and ab initio calculations to rationalize BiFeO3 crystallization pathways

Combining text mining, in situ characterization, and ab initio calculations to rationalize BiFeO3 crystallization pathways

Optical, conductive, and ferroelectric properties of the first layer of dip-coated BiFeO₃ films from methoxyethanol and acetic acid-based chemical dissolvents

Comparison of sol–gel and hydrothermal synthesis methods on the physical, and photocatalytic properties of Bi1−xCexFe1−xAlxO3 ferrites

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Effects of solvents and Al doping on structure and physical properties of BiFeO3 thin films

Cited by 8 publications

References 34 publications

Combining text mining, in situ characterization, and ab initio calculations to rationalize BiFeO3 crystallization pathways

Combining text mining, in situ characterization, and ab initio calculations to rationalize BiFeO3 crystallization pathways

Optical, conductive, and ferroelectric properties of the first layer of dip-coated BiFeO3 films from methoxyethanol and acetic acid-based chemical dissolvents

Comparison of sol–gel and hydrothermal synthesis methods on the physical, and photocatalytic properties of Bi1−xCexFe1−xAlxO3 ferrites

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Optical, conductive, and ferroelectric properties of the first layer of dip-coated BiFeO₃ films from methoxyethanol and acetic acid-based chemical dissolvents