Novel rare earth yttrium doping effect on physical properties of PbS nanostructures: facile synthesis and characterization

Chandekar, Kamlesh V.; Alshahrani, Thamraa; Trabelsi, Amira Ben Gouider; Alkallas, Fatemah H.; Shkir, Mohd.; AlFaify, S.

doi:10.1007/s10853-020-05539-w

Cited by 40 publications

(3 citation statements)

References 62 publications

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“…The trend of the dielectric constant as a function of Sr content was consistent with that reported by Sandhya Suresh et al (Sandhya et al, 2023). The grain boundary effect, interfacial/space charge polarization, charge defects, oxygen vacancies, and the heterogeneous character of the dielectric may all be responsible for the lower frequency high dielectric qualities (Chandekar et al, 2020a;Shkir et al, 2020a;Chandekar et al, 2020b;Shkir et al, 2020b;Kamlesh et al, 2021a;Shkir Mohd et al, 2021;Chandekar et al, 2021b;Gouider Trabelsi et al, 2022;Sandhya et al, 2023). The Maxwell-Wagner model states that dielectric materials are made up of grains with insulating grain boundaries and strongly conducting grains (Kamlesh et al, 2021b;Ben et al, 2023).…”

Section: Frequency-dependent Dielectric Propertiesmentioning

confidence: 99%

“…The narrowing of the energy band gap is caused by the small numbers of voids/defects present in a crystal lattice, according to Kamlesh V. Chandekar et al (Kamlesh et al, 2021a). In the present series of LSMO, results obtained from XRD analysis showed that dislocation density (defects per unit volume) decreased from 0.0044 to 0.0025, correlated with an increase in crystallite size from 15 to 20 nm, as doping concentration of Sr rose from 0.0 to 0.2, which means these stable LSMO nanoparticles have great potential for used as solar cells due to their lower transparency; we calculate their degree of transparency in the upcoming discussion.…”

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confidence: 99%

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Narrowing of band gap and decrease in dielectric loss in La1-xSrxMnO3 for x = 0.0, 0.1, and 0.2 manganite nanoparticles

Ali,

Shah,

Ullah

et al. 2024

Front. Mater.

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Polycrystalline compounds of lanthanum strontium manganite (La1-xSrxMnO3, LSMO) are widely used in electronic storage devices due to their minimal losses and electronic charge transport properties. In this study, we investigated how varying substitutions of Sr2+ for values of x = 0.0, 0.1, and 0.2 affected the tuning of the optical band gap and dielectric losses in La1-xSrxMnO3 nanoparticles. Synthesized samples were structurally analyzed via X-ray diffraction. A rhombohedral R3¯c crystal structure was confirmed for all prepared samples; crystallite size ranging from 15 nm to 20 nm was estimated along with other lattice parameters. Polygonal or hexagonal-like morphology was revealed by field emission scanning electron microscopy, with a moderate size distribution of nanoparticles affected by thinner grain boundaries in doped LSMO. Energy dispersive spectroscopy was employed to confirm the elemental composition of each compound, and the infrared spectrum indicated bonding in the fingerprint region It was observed that there was a significant reduction in the optical band gap, which was measured using ultraviolet spectrometer absorption data. The band gap decreased from 4.34 eV to 4.11 eV. This reduction was found to be related to the difference in refractive index, which was calculated using both Moss and Herve–Vandamme relations. In parallel, frequency-dependent dielectric analysis revealed that frequency was proportional to the increase in Sr content, inversely affecting dielectric loss. Moreover, the AC conductivity of the prepared samples increased with the rise in Sr content, as described by Johnscher’s universal power law in the region of high frequency.

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Section: Frequency-dependent Dielectric Propertiesmentioning

confidence: 99%

mentioning

confidence: 99%

Narrowing of band gap and decrease in dielectric loss in La1-xSrxMnO3 for x = 0.0, 0.1, and 0.2 manganite nanoparticles

Ali,

Shah,

Ullah

et al. 2024

Front. Mater.

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“…Chandekar et al [51]. Several characterizations have been performed on the dielectric characteristics of pure and yttrium-doped PbS nanoparticles generated through the co-precipitation chemical synthesis technique.…”

Section: Characterization With Different Sintering Temperaturesmentioning

confidence: 99%

Study of Zinc Oxide Varistors by Incorporating Alkaline-Earth and Rare-Earth Metal Nanofillers

2022

Nanosistemi, Nanomateriali, Nanotehnologii

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This paper investigates recent developments in the field of zinc oxide varistors' development using nanocomposite materials. In addition, the materials under discussion have attracted academic and industrial interests due to their dramatic improvement in characteristics at nanofiller contents. Moreover, the varieties and forms of zinc oxide varistors, as well as the structure and properties of zinc oxide varistors, are discussed in this article. Zinc oxide varistors have traditionally been filled with synthetic or natural inorganic compounds to improve their properties or simply to save cost. In addition, this paper investigates the performance evaluation of zinc oxide varistors by incorporating alkaline-earth and rare-earth metal nanofillers. These applications require multifunctionality in a single material, which is rare in zinc oxide varistors. Zinc oxide varistors incorporating with other materials is a cost-effective technique to create multifunctional materials. The property improvement in nanocomposite systems, where the fillers typically have nanometre-scale dimensions, probably occurs with a tradeoff. У даній роботі досліджуються останні результати в області розробки варисторів оксиду Цинку з використанням нанокомпозитних матеріялів. Крім того, обговорювані матеріяли привернули академічні та промислові інтереси завдяки різкому поліпшенню їхніх характеристик із вмістом нанонаповнювачів. Крім того, різновиди та форми варисторів оксиду Цинку, а також будова та властивості варисторів оксиду Цинку розглянуто в даній статті. Варистори оксиду Цинку традиційно запов-

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Tunability of physical properties of NiO by the introduction of rare earth metal (Y, Ho) dual doping for natural sunlight-driven photocatalysis

Munawar

Fatima

Nadeem

et al. 2023

J Mater Sci: Mater Electron

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Novel rare earth yttrium doping effect on physical properties of PbS nanostructures: facile synthesis and characterization

Cited by 40 publications

References 62 publications

Narrowing of band gap and decrease in dielectric loss in La1-xSrxMnO3 for x = 0.0, 0.1, and 0.2 manganite nanoparticles

Narrowing of band gap and decrease in dielectric loss in La1-xSrxMnO3 for x = 0.0, 0.1, and 0.2 manganite nanoparticles

Study of Zinc Oxide Varistors by Incorporating Alkaline-Earth and Rare-Earth Metal Nanofillers

Tunability of physical properties of NiO by the introduction of rare earth metal (Y, Ho) dual doping for natural sunlight-driven photocatalysis

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