Solution-processed BiFeO3 thin films with low leakage current

Martínez, Alfredo Blázquez; Godard, Nicolas; Aruchamy, Naveen; Milési-Brault, Cosme; Condurache, Oana; Benčan, Andreja; Glinšek, Sebastjan; Granzow, Torsten

doi:10.1016/j.jeurceramsoc.2021.05.051

Cited by 21 publications

(6 citation statements)

References 43 publications

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“…Such weak polarization properties are attributed to multiple causes. First, a high density of point defects in oxides could lead to the leakage and weak polarization in ferroelectric oxide thin films. − Approaches such as post-deposition oxygen annealing along with tuned growth temperature and pressure conditions could minimize point defects and thus improve the overall switching properties. , Second, it has been discovered that Aurivillius phases tend to exhibit stronger polarization along the in-plane direction . Thus, improving the growth and texture could also improve the overall properties.…”

Section: Resultsmentioning

confidence: 99%

Epitaxial Growth of Aurivillius Bi₃Fe₂Mn₂O_x Supercell Thin Films on Silicon

Barnard

Paldi

Kalaswad

et al. 2023

Crystal Growth & Design

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Nanoelectronic devices integrated with functional complex oxides have drawn much attention in recent years. However, due to material and processing compatibility issues, integrating functional complex oxides with Si-based devices is challenging, and success has been limited. As an example, the Bi3Fe2Mn2O x (BFMO) supercell system, a single-phase layered oxide made by compositing BiFeO3 and BiMnO3, has been studied for much of the past decade for its unusual layered Aurivillius structure and magnetic and ferroelectric properties. However, most of the BFMO thin film growth has been demonstrated on single-crystal oxide substrates such as SrTiO3 and LaAlO3. In this work, we demonstrate that the BFMO layered supercell phase can be integrated on Si with high epitaxial quality using a buffer stack of TiN/SrTiO3/CeO2. Further understanding of the strain-controlled growth of the BFMO supercell phase has allowed such Si integration. Microstructure, magnetic, ferroelectric, and optical properties of the BFMO films on Si have been characterized and compared with those of BFMO on SrTiO3 single-crystal substrates, demonstrating comparable epitaxial quality and physical properties. Integrating multiferroic BFMO oxides on Si demonstrates the potential of layered supercell oxides in practical device applications such as ferroelectric field effect transistors.

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Section: Resultsmentioning

confidence: 99%

Epitaxial Growth of Aurivillius Bi₃Fe₂Mn₂O_x Supercell Thin Films on Silicon

Barnard

Paldi

Kalaswad

et al. 2023

Crystal Growth & Design

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“…The substrate was first coated with a 23 nm thick hafnia buffer layer using atomic layer deposition [ 26 ]. To initiate the desired perovskite structure, lead titanate (0.1 M concentration) was used as a seed layer using sol-gel deposition [ 27 ] with the conditions reported in the literature [ 28 ]. PST solution was then spin coated at 3000 rpm for 30 s followed by drying and pyrolysis for 120 s at 130 °C and 350 °C respectively.…”

Section: Methodsmentioning

confidence: 99%

Large pyroelectric energy conversion in lead scandium tantalate thin films

Aravindhan,

Glinsek,

Girod

et al. 2024

Heliyon

Self Cite

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“…In recent past, many researchers have attempted on the preparation of BFO in ceramic and also in thin film state through variety of routes such as microwave irradiation, spark plasma followed by sol-gel, solid state reaction, sol-gel, sintering techniques, solution deposition, magnetron sputtering, metal organic chemical vapor decomposition, and pulsed laser deposition methods DOI: 10.1002/crat.202200143 (PLD). [1][2][3][4] Investigation on the structural parameters, topographical, ferroelectric and leakage current behavior of BFO both for ceramic and thin film structure were well studied. [5][6][7][8][9] In particular, many studies concentrated on the suppression of leakage current in BFO by adopting different synthesis techniques.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Analysis on the Crystalline Behavior, Topographical, Photoluminescence, and Leakage Current Characteristics of BiFeO₃ Nanopowders and Thin Films

Venkatapathy

Ramya

Sabarish

et al. 2023

Cryst. Res. Technol.

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Thin films and nanocrystalline powders of BiFeO3 (BFO) are prepared from pulsed laser deposition (PLD) and sol–gel process, respectively. Their grain sizes, microstrain, morphological features, leakage current characteristics, and photoluminescence (PL) emission behavior are investigated and compared with each other. X‐ray diffraction (XRD) technique has been utilized to compute the grain sizes and crystalline strain values for the thin films and nanopowders of BFO through Williamson–Hall (W–H) plots. XRD and Raman peaks of the deposited thin film and synthesized nanopowders of BFO confirm the formation of rhombohedral unit cell character and its vibrational structure. Topographical analysis of nanopowders and thin films of BFO from scanning electron microscopy (SEM) and atomic force microscopy (AFM) measurements reveals the spherical morphology of grown particles. Suppression of emission peaks, as noticed from PL spectra for BFO nanopowders and thin film, indicates the possible electron defect level transitions due to oxygen vacancies. Leakage current density studies suggest the detectable flow of current in both study of specimen.

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Solution-processed BiFeO3 thin films with low leakage current

Cited by 21 publications

References 43 publications

Epitaxial Growth of Aurivillius Bi₃Fe₂Mn₂O_x Supercell Thin Films on Silicon

Epitaxial Growth of Aurivillius Bi₃Fe₂Mn₂O_x Supercell Thin Films on Silicon

Large pyroelectric energy conversion in lead scandium tantalate thin films

A Comparative Analysis on the Crystalline Behavior, Topographical, Photoluminescence, and Leakage Current Characteristics of BiFeO₃ Nanopowders and Thin Films

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Solution-processed BiFeO3 thin films with low leakage current

Cited by 21 publications

References 43 publications

Epitaxial Growth of Aurivillius Bi3Fe2Mn2Ox Supercell Thin Films on Silicon

Epitaxial Growth of Aurivillius Bi3Fe2Mn2Ox Supercell Thin Films on Silicon

Large pyroelectric energy conversion in lead scandium tantalate thin films

A Comparative Analysis on the Crystalline Behavior, Topographical, Photoluminescence, and Leakage Current Characteristics of BiFeO3 Nanopowders and Thin Films

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Epitaxial Growth of Aurivillius Bi₃Fe₂Mn₂O_x Supercell Thin Films on Silicon

Epitaxial Growth of Aurivillius Bi₃Fe₂Mn₂O_x Supercell Thin Films on Silicon

A Comparative Analysis on the Crystalline Behavior, Topographical, Photoluminescence, and Leakage Current Characteristics of BiFeO₃ Nanopowders and Thin Films