Poling effect on optical and dielectric properties of Pr3+-doped Na0.5Bi0.5TiO3 ferroelectric single crystal

An, Yang; He, Chao; Deng, Chenguang; Chen, Ziyun; Chen, Hongbing; Wu, Tong; Lu, Yuangang; Gu, Xiaokun; Wang, Jiming; Liu, Youwen; Li, Ziqiang

doi:10.1016/j.ceramint.2019.10.197

Cited by 17 publications

(3 citation statements)

References 32 publications

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“…This enhanced electrical charge pushes down/tilts the position of the band and decreases the optical band gap. The surface oxygen vacancy also plays with the electronic structure and pushes down the band resulting in a decreased bandgap 35 …”

Section: Resultsmentioning

confidence: 99%

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Effect of poling on photocatalytic activity with SrBi₄Ti₄O₁₅ catalyst

Kumar,

Vaish

2024

J Am Ceram Soc.

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This research article is related to a bismuth oxide‐layered pseudo‐perovskite ferroelectric material and its capabilities in the area of photocatalysis. SrBi4Ti4O15 (SBT) catalyst was prepared via a solid‐state reaction followed by calcination at 950°C sustained over 4 h. X‐ray diffraction, X‐ray photoelectron spectroscopy, bandgap analysis, Raman spectroscopy, and scanning electron microscopy confirmed the successful synthesis of the SBT catalyst. The photocatalysis capability was checked on a methylene blue (MB) model dye. The poling of the SBT catalyst was performed under 2 kV/mm of electric field. The poling of the catalyst material played a crucial role in enhancing the photocatalytic activity. Moreover, the effect of volume (k(v)), initial concentration (k(ic)) of the MB dye, amount of catalyst (k(c)), and intensity (k(i)) of the light were examined and analyzed by the mathematical model. This study suggested that higher intensity and amount of catalyst enhance photocatalytic activity, whereas higher concentration and volume of dye suppress the photocatalytic activity. The amount of catalyst showed the highest effect on the photocatalytic activity. The rate constant is influenced by these factors and the order of influence is k(c) > k(i) > k(v) ≃ k(ic).

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Section: Resultsmentioning

confidence: 99%

“…The surface oxygen vacancy also plays with the electronic structure and pushes down the band resulting in a decreased bandgap. 35…”

Section: Elemental % =mentioning

confidence: 99%

Effect of poling on photocatalytic activity with SrBi₄Ti₄O₁₅ catalyst

Kumar,

Vaish

2024

J Am Ceram Soc.

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“…Within this scope, correlations will be given between the occurring octahedral TiO6 distortions and the ferroelectric character of the studied RENBT systems using the investigation of the x-ray absorption near edge structure (XANES) at the Ti K-edge. Rare earth doping was reported to be an effective alternative way to improve the physical properties of ferroelectric systems [17][18][19][20][21][22][23][24][25][26][27] . Besides, based on lead-based ferroelectric systems, doping with RE ions was found to induce a change in the ordering degree of A/B-site cations and induce random fields/bonds that give rise to local structural heterogeneities [28][29][30] .…”

Section: Introductionmentioning

confidence: 99%

Effect of rare earth on physical properties of Na0.5Bi0.5TiO3 system: A density functional theory investigation

Benyoussef

Zaari

Belhadi

et al. 2022

Journal of Rare Earths

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Reporting Excellent Transverse Piezoelectric and Electro‐Optic Effects in Transparent Rhombohedral PMN‐PT Single Crystal by Engineered Domains

Deng

et al. 2021

Advanced Materials

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Transparent ferroelectric crystals with high piezoelectricity are challenging to build because of their complex structure and disordered domains in rhombohedral relaxor ferroelectrics. There are eight domains along the <111> direction, which cause light scattering. In this study, perfect transparency is achieved along the [110] and [001] directions in [110]‐poled rhombohedral 0.72Pb(Mg1/3Nb2/3)O3‐0.28PbTiO3 (PMN‐PT) crystals, which have a high d31 value of 1700 pC N−1 and a high electro‐optic coefficient γ33 of 320 pm V−1. This implies that the [110]‐oriented rhombohedral PMN‐0.28PT crystal can realize the mode of transverse modulation, whereas the [001]‐oriented PMN‐0.28PT crystal is more suitable for the longitudinal mode. Through piezoresponse force microscopy (PFM), it is confirmed that the [110]‐poled rhombohedral PMN‐PT crystals form 71° layered domains, which are similar to the 109° layered domains of the [001]‐oriented transparent crystal. Combined with PFM and birefringence microscopy, the degradation of domains and thickness dependence of piezoelectricity provide clear evidence for the relationship between the engineered domain structures and piezoelectric properties, which should be considered in the design of piezoelectric or electro‐optic devices with excellent performance. This work enriches the research on ferroelectric domain engineering for excellent transparency and high piezoelectricity to provide new ideas for photoacoustic devices.

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Poling effect on optical and dielectric properties of Pr3+-doped Na0.5Bi0.5TiO3 ferroelectric single crystal

Cited by 17 publications

References 32 publications

Effect of poling on photocatalytic activity with SrBi₄Ti₄O₁₅ catalyst

Effect of poling on photocatalytic activity with SrBi₄Ti₄O₁₅ catalyst

Effect of rare earth on physical properties of Na0.5Bi0.5TiO3 system: A density functional theory investigation

Reporting Excellent Transverse Piezoelectric and Electro‐Optic Effects in Transparent Rhombohedral PMN‐PT Single Crystal by Engineered Domains

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Poling effect on optical and dielectric properties of Pr3+-doped Na0.5Bi0.5TiO3 ferroelectric single crystal

Cited by 17 publications

References 32 publications

Effect of poling on photocatalytic activity with SrBi4Ti4O15 catalyst

Effect of poling on photocatalytic activity with SrBi4Ti4O15 catalyst

Effect of rare earth on physical properties of Na0.5Bi0.5TiO3 system: A density functional theory investigation

Reporting Excellent Transverse Piezoelectric and Electro‐Optic Effects in Transparent Rhombohedral PMN‐PT Single Crystal by Engineered Domains

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Product

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Effect of poling on photocatalytic activity with SrBi₄Ti₄O₁₅ catalyst

Effect of poling on photocatalytic activity with SrBi₄Ti₄O₁₅ catalyst