Microstructure and ferroelectric properties of Ta-doped Bi3.25La0.75Ti3O12/ZnO thin film capacitors

Ma, Shuai; Li, Wei; Hao, Jigong; Ren, Shiqiang; Wang, Min; Xu, Zhijun

doi:10.1016/j.ceramint.2021.11.064

Cited by 4 publications

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The BLT/FeCo-BLT and Co-BLT/FeCo-BLT composite films had ferroelectric temperatures of 650 • C and 700 • C, respectively, which were significantly higher than that of the base target. These high ferroelectric properties were maintained until 650 • C, indicating that the modification of the BLT and Co-BLT films with FeCo-BLT improved the thermal stability of the ferroelectric properties of the films [24][25][26][27]. The BLT/FeCo-BLT and Co-BLT/FeCo-BLT composite films exhibited favorable ferroelectric properties and thermal stability.…”

Section: Resultsmentioning

confidence: 93%

Optoelectronic Properties of Ferroelectric Composites of Bi3.25La0.75Ti3O12 (BLT) and Co-Doped BLT Thin Films Modified by FeCo-Doped BLT

Tang

Kim

et al. 2023

Coatings

View full text Add to dashboard Cite

Driven by the growing demand for renewable and clean energy, the photovoltaic effect of various solar cells and materials was investigated for the conversion of light energy into electricity. We modified the Bi3.25La0.75Ti3O12 (BLT) and Co-doped BLT (Co–BLT) composites with Fe and Co-doped BLT (FeCo–BLT) films to narrow the bandgap and increase visible light absorption, thereby improving the efficiency of the photovoltaic reaction. In this study, BLT and Co–BLT thin films were fabricated by off-axis sputtering and then modified with FeCo–BLT thin films to produce dual-ferroelectric, thin-film composite materials that improved the photovoltaic power generation performance. Photoelectric test results showed that the modified double-ferroelectric, thin-film composites had superior optoelectronic properties. The current density was significantly enhanced by modifying the BLT films with doped Fe and Co. Therefore, this modification improved the efficiency of ferroelectric thin-film photovoltaic reactions.

show abstract

Section: Resultsmentioning

confidence: 93%

Optoelectronic Properties of Ferroelectric Composites of Bi3.25La0.75Ti3O12 (BLT) and Co-Doped BLT Thin Films Modified by FeCo-Doped BLT

Tang

Kim

et al. 2023

Coatings

View full text Add to dashboard Cite

show abstract

“…[22][23][24][25][26][27][28]. The reported study on the Aurivillius family embodies two main aspects: (i) aliovalent doping at A-and B-sites to enhance the multiferroic performance, and (ii) processing mediated structure-property correlations in ceramics, thin films, single crystals, and intergrowths [29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Magnetoelectric Properties of Aurivillius-Layered Perovskites

Veenachary,

Ramana,

Narendra Babu

et al. 2024

Crystals

View full text Add to dashboard Cite

In the present work, we have synthesized rare-earth ion modified Bi4−xRExTi2Fe0.7Co0.3O12−δ (RE = Dy, Sm, La) multiferroic compounds by the conventional solid-state route. Analysis of X-ray diffraction by Rietveld refinement confirmed the formation of a polycrystalline orthorhombic phase. The morphological features revealed a non-uniform, randomly oriented, plate-like grain structure. The peaks evident in the Raman spectra closely corresponded to those of orthorhombic Aurivillius phases. Dielectric studies and impedance measurements were carried out. Asymmetric complex impedance spectra suggested the relaxation of charge carriers belonging to the non-Debye type and controlled by a thermally activated process. Temperature-dependent AC conductivity data showed a change of slope in the vicinity of the phase transition temperature of both magnetic and electrical coupling natures. Based on the universal law and its exponent nature, one can suppose that the conduction process is governed by a small polaron hopping mechanism but significant distortion of TiO6 octahedral. The doping of the A-sites with rare-earth element ions and changes in the concentrations of Fe and Co ions located on the B-sites manifested themselves in saturated magnetic hysteresis loops, indicating competitive interactions between ferroelectric and canted antiferromagnetic spins. The magnetic order in the samples is attributed to pair-wise interactions between adjacent Fe3+–O–Fe3+, Co2+/3+–O–Co3+/2+, and Co2+/3+–O–Fe3+ ions or Dzyaloshinskii–Moriya interactions among magnetic ions in the adjacent sub-lattices. As a result, enhanced magnetoelectric coefficients of 42.4 mV/cm-Oe, 30.3 mV/cm-Oe, and 21.6 mV/cm-Oe for Bi4−xDyxTi2Fe0.7Co0.3O12−δ (DBTFC), Bi4−xLaxTi2Fe0.7Co0.3O12−δ (LBTFC), and Bi4−xSmxTi2Fe0.7Co0.3O12−δ (SBTFC), respectively, have been obtained at lower magnetic fields (<3 kOe). The strong coupling of the Aurivillius compounds observed in this study is beneficial to future multiferroic applications.

show abstract

Effect of pre-synthesized Zn–Sb−O phase on the electrical properties of ZnO–Bi2O3–MnO2 varistor

Wei,

Xu,

Zhang

et al. 2023

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Microstructure and ferroelectric properties of Ta-doped Bi3.25La0.75Ti3O12/ZnO thin film capacitors

Cited by 4 publications

References 41 publications

Optoelectronic Properties of Ferroelectric Composites of Bi3.25La0.75Ti3O12 (BLT) and Co-Doped BLT Thin Films Modified by FeCo-Doped BLT

Optoelectronic Properties of Ferroelectric Composites of Bi3.25La0.75Ti3O12 (BLT) and Co-Doped BLT Thin Films Modified by FeCo-Doped BLT

Magnetoelectric Properties of Aurivillius-Layered Perovskites

Effect of pre-synthesized Zn–Sb−O phase on the electrical properties of ZnO–Bi2O3–MnO2 varistor

Contact Info

Product

Resources

About