Structural, dielectric and piezoelectric properties of SrBi2Nb2O9 and Sr0.8Bi2.2Nb2O9 ceramics

Singh, Rajveer; Luthra, Vandna; Rawat, Rajdeep Singh; Tandon, R. P.

doi:10.1016/j.ceramint.2014.11.139

Cited by 34 publications

(5 citation statements)

References 52 publications

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“…An excellent piezoelectric coefficient of 23 pC N À1 is found when x is 0.1 as shown in Table 2, which is higher than the reported results in other Aurivillius material systems (Table 1). [22][23][24] In addition, the values of d 33 were not zero when the depolarization temperature was higher than the rst dielectric anomalies ($400 C). However, when the depolarization temperature was higher than the second dielectric anomalies, d 33 was zero.…”

Section: Resultsmentioning

confidence: 95%

Structure and electrical properties of lead-free Sr_1−x(K,Ce)_x/2(Na_0.5Bi_0.5)Bi₄Ti₅O₁₈ piezoelectric ceramics

Yao

Chu

et al. 2016

RSC Adv.

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Section: Resultsmentioning

confidence: 95%

Structure and electrical properties of lead-free Sr_1−x(K,Ce)_x/2(Na_0.5Bi_0.5)Bi₄Ti₅O₁₈ piezoelectric ceramics

Yao

Chu

et al. 2016

RSC Adv.

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“…It can be concluded that real impedance Z' is independent of frequency and doping content (x) beyond 1kHz. The higher Z' values at low frequencies in samples with 10 and 20% tin is because of low mass space charge from PNR dominant microstructure of 10 and 20% tin doped SSBLN compositions [27][28][29], also seen in Fig.4. Fig.7(b) shows a very interesting variation of Z"…”

Section: Fig 4 Dielectric Dispersion Of Tin-doped Ssbln Compositionsmentioning

confidence: 68%

Hole/electron transport layers in tin-doped SBLN nano materials for hybrid solar cell applications

Pritam

Shrivastava

2019

J Mater Sci: Mater Electron

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In this work, layered perovskite SBN was investigated in a new doped form for hole as well as electron transport layer (HTL/ETL) in perovskite solar cells. This work was targeted to conclude the effect of tin doping in lanthanum-bismuth layer SBN on optical energy band gap besides dominant electron-hole transportation to assist in perovskite solar cell applications. Thoroughly hard ball-milled compositions 0.01, 0.03, 0.05, 0.1 and 0.2) were prepared by special microwave synthesis to obtain fine (~10-60nm) mesoporous particle network of atomic level substitutions. Microwave synthesis was crucial in modifying dielectric, semiconducting and optical characteristics of prepared SBN materials. The band gap reduced in continuous manner and carrier mobility was increased by 112% for maximum tin doping. Nano particle formation assisted in raising carrier mobility by bridging bigger grains through nano particles. The effect of macro-sized grains and nano-sized grain boundaries on carrier transport were further investigated in detail using impedance spectroscopy.

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“…These modes correspond to the orthorhombic phase with space group A2 1 am, consistent with previous reports on SBN. 31,[36][37][38][39][40] The highfrequency Raman modes (<200 cm −1 ) are associated with the vibrations of NbO 6 octahedra and lattice translations involving cation motion, while the low-frequency modes (<200 cm −1 ) are attributed to the motion of the heavier Bi 3+ ions. 36 The lowest Raman mode observed at 175 cm −1 , originating from the A-site vibration, undergoes a shift towards higher frequencies.…”

Section: Resultsmentioning

confidence: 99%

Exploration of the Structural, Dielectric, Ferroelectric, and Piezoelectric Properties in Non-stoichiometric Sr_1−XBi_2+2X/3Nb₂O₉ Ceramics

Singh,

Gautam,

Luthra

et al. 2023

ECS J. Solid State Sci. Technol.

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In this study, the authors focused on the preparation and characterization of Lead-free ferroelectric ceramics known as Sr1−XBi2+2X/3Nb2O9: SBBNX, where 0.0≤ × ≤0.4. The ceramics were synthesized using a conventional solid-state reaction route. The researchers performed X-ray diffraction (XRD) analysis to confirm the phase formation and employed the Rietveld refinement technique. The results indicated that the prepared SBBNX ceramics exhibited a single phase with an orthorhombic structure, specifically belonging to the A21am space group. All samples were subjected to analysis using field emission scanning electron microscopy (FESEM) to investigate their surface morphology. The micrographs revealed a uniform distribution of grains (of size 2–4 μm ) on the surface, with distinct grain boundaries. An increasing trend in both the dielectric constant (from 99 to 220 at room temperature) and transition temperature (from 396 °C to 490 °C) was noted with an increase of Bi content in SBN. The researchers estimated the activation energies by analyzing the Arrhenius plots of the ac conductivity. The obtained values ranged from 0.62 to 1.25 eV, indicating the presence of motion of oxygen vacancies in the SBBNX ceramics. The primary objective of this study was to optimize the Sr/Bi ratio in SBBNX ceramics to enhance their potential use in non-volatile random access memory (NVRAM) applications and high-temperature piezoelectric devices.

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Structural, dielectric and piezoelectric properties of SrBi2Nb2O9 and Sr0.8Bi2.2Nb2O9 ceramics

Cited by 34 publications

References 52 publications

Structure and electrical properties of lead-free Sr_1−x(K,Ce)_x/2(Na_0.5Bi_0.5)Bi₄Ti₅O₁₈ piezoelectric ceramics

Structure and electrical properties of lead-free Sr_1−x(K,Ce)_x/2(Na_0.5Bi_0.5)Bi₄Ti₅O₁₈ piezoelectric ceramics

Hole/electron transport layers in tin-doped SBLN nano materials for hybrid solar cell applications

Exploration of the Structural, Dielectric, Ferroelectric, and Piezoelectric Properties in Non-stoichiometric Sr_1−XBi_2+2X/3Nb₂O₉ Ceramics

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Structural, dielectric and piezoelectric properties of SrBi2Nb2O9 and Sr0.8Bi2.2Nb2O9 ceramics

Cited by 34 publications

References 52 publications

Structure and electrical properties of lead-free Sr1−x(K,Ce)x/2(Na0.5Bi0.5)Bi4Ti5O18 piezoelectric ceramics

Structure and electrical properties of lead-free Sr1−x(K,Ce)x/2(Na0.5Bi0.5)Bi4Ti5O18 piezoelectric ceramics

Hole/electron transport layers in tin-doped SBLN nano materials for hybrid solar cell applications

Exploration of the Structural, Dielectric, Ferroelectric, and Piezoelectric Properties in Non-stoichiometric Sr1−XBi2+2X/3Nb2O9 Ceramics

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Structure and electrical properties of lead-free Sr_1−x(K,Ce)_x/2(Na_0.5Bi_0.5)Bi₄Ti₅O₁₈ piezoelectric ceramics

Structure and electrical properties of lead-free Sr_1−x(K,Ce)_x/2(Na_0.5Bi_0.5)Bi₄Ti₅O₁₈ piezoelectric ceramics

Exploration of the Structural, Dielectric, Ferroelectric, and Piezoelectric Properties in Non-stoichiometric Sr_1−XBi_2+2X/3Nb₂O₉ Ceramics