Synthesis mechanisms and effects of BaTiO3 doping on the optical properties of Bi0.5Na0.5TiO3 lead-free ceramics

Supriya, S.

doi:10.1016/j.jssc.2022.122940

Cited by 43 publications

(9 citation statements)

References 145 publications

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“…Over and above, the UV absorption capability can be considered a credit in designing indoor light harvesters, where the UV portion in the light spectrum dominates 33,34 . In addition to the interesting optical properties of BaTiO 3 , it also showed exciting features in other applications, such as gas sensing 17 , water treatment 35 , and piezo-photoelectronic coupling 18 .Recently, the optical and electrical properties of barium titanate (BaTiO 3 ) have attracted a wide range of researchers, as demonstrated in the literature [36][37][38][39][40][41][42] . The impact of the synthesizing process on the optical properties of the BaTiO 3 nano-structure is studied in 37 .…”

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confidence: 99%

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Optical investigation and computational modelling of BaTiO3 for optoelectronic devices applications

Elmahgary

Mahran

Ganoub

et al. 2023

Sci Rep

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ABX3 perovskite-based materials have attracted research attention in various electronic and optoelectronic applications. The ability to tune the energy band gap through various dopants makes perovskites a potential candidate in many implementations. Among various perovskite materials, BaTiO3 has shown great applicability as a robust UV absorber with an energy band gap of around 3.2 eV. Herein, we provide a new sonochemical-assisted solid-phase method for preparing BaTiO3 thin films that optoelectronic devices can typically be used. BaTiO3 nano-powder and the thin film deposited on a glass substrate were characterized using physicochemical and optical techniques. In addition, the work demonstrated a computational attempt to optically model the BaTiO3 from the atomistic level using density functional theory to the thin film level using finite difference time domain Maxwell's equation solver. Seeking repeatability, the dispersion and the extinction behavior of the BaTiO3 thin film have been modeled using Lorentz-Dude (LD) coefficients, where all fitting parameters are listed. A numerical model has been experimentally verified using the experimental UV–Vis spectrometer measurements, recording an average root-mean-square error of 1.44%.

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confidence: 99%

“…Recently, the optical and electrical properties of barium titanate (BaTiO 3 ) have attracted a wide range of researchers, as demonstrated in the literature [36][37][38][39][40][41][42] . The impact of the synthesizing process on the optical properties of the BaTiO 3 nano-structure is studied in 37 .…”

mentioning

confidence: 99%

Optical investigation and computational modelling of BaTiO3 for optoelectronic devices applications

Elmahgary

Mahran

Ganoub

et al. 2023

Sci Rep

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“…The lattice parameters of the prepared BT nanopowder a = b = 4.0165, c = 4.0340 Å, and α = β = γ = 90°, c/a ratio is (1.004) and cell volume = 65.079 Å. The sample exhibits a tetragonal geometry with space group ( P4mm ) [ 26–29 ] at room temperature and the corresponding lattice parameters of the prepared sample are summarised in Table 1 .…”

Section: Resultsmentioning

confidence: 99%

“…The sample exhibits a tetragonal geometry with space group (P4mm) [26][27][28][29] at room temperature and the corresponding lattice parameters of the prepared sample are summarised in Table 1.…”

Section: Xrd Analysismentioning

confidence: 99%

A Very Low Temperature Growth of BaTiO₃ Nanoparticles by Sol‐Hydrothermal Method

Dushyant

Kumar

et al. 2022

Physica Status Solidi (a)

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Low‐temperature intercessions are the most proficient technique to control the particle size in the nanometres range with low agglomeration. Herein, BaTiO3 (BT) nanoparticles (NPs) are prepared at low temperatures by using the sol‐hydrothermal technique. An X‐ray diffraction (XRD) pattern of the powder signifies the pure tetragonal phase, and the average crystallite size (43.2 nm) is calculated using different methods: Scherrer's, uniform deformation model (UDM), uniform stress deformation model (USDM), and uniform deformation energy density model (UDEDM) analysis, and the structure is refined by Rietveld refinement method with a good fit value (χ2 = 1.66). Spherical and uniform surface morphology is counted up for BT NPs. Under suitable conditions, BT NPs can be prepared with an average particle size of ≈115 ± 10 nm. However, after sintering, the average grain size (335 ± 10 nm) of the BaTiO3 nanopowder is found to increase with dense grain boundaries. The dielectric behavior of the sample is analyzed with the variation of frequency at different temperatures. The effect of grain and grain boundary on the electrical properties of the material is also investigated by using complex impedance spectroscopy (CIS).

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“…This method has great importance, such as high interdiffusion ions, reasonable stoichiometry control, and low processing temperature. 74,75 Yttrium titanate pyrochlores can be synthesized by the sol-gel method. The europium-doped Y 2 Ti 2 O 7 was prepared by M. Saif et al Titanium (IV) isopropoxide and nitrates of europium and yttrium were the primary materials.…”

Section: Synthesis and Crystal Growthmentioning

confidence: 99%

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Supriya

2024

ECS J. Solid State Sci. Technol.

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The invention of yttrium titanates (Y2Ti2O7) with various exciting properties in electroceramics has created great attention among industrialists and researchers. Improving the materials of pyrochlore oxides with significant properties for future electronic devices became essential. The Y2Ti2O7 is one such cubic pyrochlore at room temperature, having excellent dielectric and luminescence properties. This article comprehensively reviews the basics and state-of-the-art in developing Y2Ti2O7 ceramics. This material is widely used for electronic devices: transducers, capacitors, optoelectronic components, and light modulators. This review focuses on the fabrication methods and crystal structure mechanisms for optimizing functional properties and current challenges. Moreover, the effect of doping elements of Y2Ti2O7-based ceramics is briefly discussed. Also, future perspectives are provided to spotlight new and trending research directions in this materials research.

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Synthesis mechanisms and effects of BaTiO3 doping on the optical properties of Bi0.5Na0.5TiO3 lead-free ceramics

Cited by 43 publications

References 145 publications

Optical investigation and computational modelling of BaTiO3 for optoelectronic devices applications

Optical investigation and computational modelling of BaTiO3 for optoelectronic devices applications

A Very Low Temperature Growth of BaTiO₃ Nanoparticles by Sol‐Hydrothermal Method

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

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Synthesis mechanisms and effects of BaTiO3 doping on the optical properties of Bi0.5Na0.5TiO3 lead-free ceramics

Cited by 43 publications

References 145 publications

Optical investigation and computational modelling of BaTiO3 for optoelectronic devices applications

Optical investigation and computational modelling of BaTiO3 for optoelectronic devices applications

A Very Low Temperature Growth of BaTiO3 Nanoparticles by Sol‐Hydrothermal Method

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

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A Very Low Temperature Growth of BaTiO₃ Nanoparticles by Sol‐Hydrothermal Method