Improved ferroelectric properties of Cr-doped Ba0.7Sr0.3TiO3 thin films prepared by wet chemical deposition

Kim, J.K.; Kim, S.S.; Kim, W.J.; Ha, T. G.; Kim, I.-S.; Song, Jae–Sung; Guo, Ruyan; Bhalla, A. S.

doi:10.1016/j.matlet.2005.12.134

Cited by 20 publications

(5 citation statements)

References 13 publications

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“…When the concentration of Fe is above a degree, the defect dipoles of the cations (i.e. Fe ions)-V Ö complex could exist in the unit cells by binding cations and oxygen vacancies [32,33], and therefore increase the total polarization [34]. However, meanwhile, the doping of Fe ions can also weaken the ferroelectric of the STF thin films because of the strong magnetic coupling between the doped Fe ions [18].…”

Section: Resultsmentioning

confidence: 99%

Room Temperature Tunable Multiferroic Properties in Sol-Gel-Derived Nanocrystalline Sr(Ti1−xFex)O3−δ Thin Films

et al. 2017

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Sr(Ti1−xFex)O3−δ (0 ≤ x ≤ 0.2) thin films were grown on Si(100) substrates with LaNiO3 buffer-layer by a sol-gel process. Influence of Fe substitution concentration on the structural, ferroelectric, and magnetic properties, as well as the leakage current behaviors of the Sr(Ti1−xFex)O3−δ thin films, were investigated by using the X-ray diffractometer (XRD), atomic force microscopy (AFM), the ferroelectric test system, and the vibrating sample magnetometer (VSM). After substituting a small amount of Ti ion with Fe, highly enhanced ferroelectric properties were obtained successfully in SrTi0.9Ti0.1O3−δ thin films, with a double remanent polarization (2Pr) of 1.56, 1.95, and 9.14 μC·cm−2, respectively, for the samples were annealed in air, oxygen, and nitrogen atmospheres. The leakage current densities of the Fe-doped SrTiO3 thin films are about 10−6–10−5 A·cm−2 at an applied electric field of 100 kV·cm−1, and the conduction mechanism of the thin film capacitors with various Fe concentrations has been analyzed. The ferromagnetic properties of the Sr(Ti1−xFex)O3−δ thin films have been investigated, which can be correlated to the mixed valence ions and the effects of the grain boundary. The present results revealed the multiferroic nature of the Sr(Ti1−xFex)O3−δ thin films. The effect of the annealing environment on the room temperature magnetic and ferroelectric properties of Sr(Ti0.9Fe0.1)O3−δ thin films were also discussed in detail.

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Section: Resultsmentioning

confidence: 99%

Room Temperature Tunable Multiferroic Properties in Sol-Gel-Derived Nanocrystalline Sr(Ti1−xFex)O3−δ Thin Films

et al. 2017

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“…The capacitor components should realize miniaturization, large capacity and exibility due to the requirements of miniaturization, multifunctionality and exibility of electronic products [3]. Ba 0.7 Sr 0.3 TiO 3 ceramic bers have great application prospects in the eld of high-power capacitor materials and embedded packaging because of their high dielectric constant, high exibility and high energy storage density [4][5]. In this work, the novel precursor linear self-assembly nonhydrolic sol-gel method was utilized to synthesize novel Ba 0.7 Sr 0.3 TiO 3 ceramic bers.…”

Section: Introductionmentioning

confidence: 99%

Precursor Linear Self-Assembly Nonhydrolytic Sol-Gel Synthesis of Ba0.7Sr0.3TiO3 Ceramic Fibers

Feng

Yin

Jiang

et al. 2021

Preprint

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Ba0.7Sr0.3TiO3 ceramic fibers were synthesized via the precursor linear self-assembly nonhydrolytic sol-gel (NHSG) method, taking TiCl4 as the titanium source, anhydrous barium acetate and strontium acetate as the barium source and strontium source, anhydrous ethanol and glycol as the oxygen donor and solvent, respectively. The NHSG method promotes the formation of Ba–O–Ti and Sr–O–Ti through heterogeneous condensation. The bimolecular association structure of the reaction intermediate (chlorotitanium ethoxide) between ethanol and titanium tetrachloride facilitates the self-linear assembly of precursors. It also enables linear colloidal particle formation and excellent spinnability of the sol. The novel Ba0.7Sr0.3TiO3 ceramic fibers would promote the flexibility of electronic products.

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“…The chemical solution deposition and spin coating methods are the simple ones. They can grow films at room temperature [6][7][8]. This paper will discuss on the manufacture of thin films of Ba 0.8 Sr 0.2 TiO 3 (BST) and BST doped by Fe with the radius of 0.78Å (BSTF).…”

Section: Introductionmentioning

confidence: 99%

Effects of Iron Dopants on Barium Strotium Titanate (Ba0.8Sr0.2TiO3) Thin Films

Setyadhani

Jamaludin

Iriani

2014

AMR

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BST thin films have been grown by Chemical Solution Deposition (CSD) method on the substrate of Pt/Si. The fabrication of BST doped by Fe have been successfully using spin coater with 4000 rpm during 30 second. Annealing process use the holding time at 3 hours, the heating rate at 5°C/min and temperature at 800°C. The ratio of Ba0.8Sr0.2TiO3molar and Fe variant dopant (0%, 1%, 3%, and 5%) were characterized by X-Ray Diffraction (XRD) and obtaining results that show the peak shift due to variations dope. The peak shifted to the right for each increment Fe dopant. Results of addition Fe dopant also cause a differences in the magnitude of Full Width at Half Maximum (FWHM) and lattice parameters on BST ferroelectric materials. Other characterize that has been done by Scanning Electron Microsopy (SEM), it is show the thickness of the material. The resulting lattice parameters with the General Structure Analysis System (GSAS) software analysis showed that a thin films of BST and BSTF have a tetragonal structure because it has a value of a=b≠c and α=β=γ=900. Based on SEM characterization, the thickness of thin film is about 330 nm.

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Improved ferroelectric properties of Cr-doped Ba0.7Sr0.3TiO3 thin films prepared by wet chemical deposition

Cited by 20 publications

References 13 publications

Room Temperature Tunable Multiferroic Properties in Sol-Gel-Derived Nanocrystalline Sr(Ti1−xFex)O3−δ Thin Films

Room Temperature Tunable Multiferroic Properties in Sol-Gel-Derived Nanocrystalline Sr(Ti1−xFex)O3−δ Thin Films

Precursor Linear Self-Assembly Nonhydrolytic Sol-Gel Synthesis of Ba0.7Sr0.3TiO3 Ceramic Fibers

Effects of Iron Dopants on Barium Strotium Titanate (Ba<sub>0.8</sub>Sr<sub>0.2</sub>TiO<sub>3</sub>) Thin Films

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