Lithium ion assisted luminescence and ferromagnetism in europium doped zinc oxide

Kumar, Pawan; Yadav, Ashok K.; Bhattacharyya, D.; Jha, S. N.; Pandey, Praveen C.

doi:10.1016/j.matchemphys.2018.04.080

Cited by 25 publications

(6 citation statements)

References 48 publications

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“…As expected, based on the comparison of the Li 1s intensity ratio, Li concentration is lower for the SnO 2 :Li 0.2 , in agreement with the ICP-OES measurements. The shift observed in the binding energy from Li (1s) as a function of the amount of dopant could be due to the variable incorporation of Li as an interstitial and/or substitutional site, , which is in agreement with the Raman and PL signals. Based on these results, insterstitial Li could be promoted by low Li doping, while higher Li doping would also induce subtitutional Li.…”

Section: Resultssupporting

confidence: 79%

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO₂ Nanoparticles as Anodes in Li-Ion Batteries

et al. 2020

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Li-ion batteries (LiB) play nowadays a major role in several technological fields. In addition to enhanced high capacity and long cyclability, some other issues regarding safety, materials sustainability, and low cost remain unsolved. Tin oxide (SnO2) presents several of those advantages as an anode material; however, some aspects still require to be investigated such as capacity fading over cycles. Herein, tin oxide nanoparticle-based anodes have been tested, showing high capacities and a significant cyclability over more than 150 cycles. A complementary strategy introducing doping elements such as Li and Ni during the synthesis by hydrolysis has been also evaluated versus the use of undoped materials, in order to assess the dependence on SnO2 quality and properties of battery performance. Diverse aspects such as the Sn charge state in the synthesized nanoparticles, the variable incorporation of dopants, and the structure of defects have been considered in the understanding of the obtained capacity.

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Section: Resultssupporting

confidence: 79%

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO₂ Nanoparticles as Anodes in Li-Ion Batteries

et al. 2020

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“…Figure 3 shows XRD spectra of pure ZnO NP sintered at 600 0 C. All the observed peaks were analysed and found to be in good agreement with standard Bragg's positions of the hexagonal wurtzite crystal structure of pure ZnO NP (PDF: 792,205) and belong to P6 3 mc space group [21]. The prepared samples have sharp and intense peak with the significance of the crystallinity.…”

Section: Xrd Analysis Of Zno Nanoparticlessupporting

confidence: 58%

On Mechanical, Thermal, Morphological and Shape Memory Effect of Sol-Gel Prepared ZnO Nanoparticle Reinforced PLA Composites Materials

Singh

Kumar

Singh

et al. 2021

Proc. Natl. Acad. Sci., India, Sect. A Phys. Sci.

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In this study, the ZnO nanoparticles (NP) prepared by sol-gel method have been reinforced with polylactic acid by novel co-rotating twin-screw compounder to prepare feedstock filaments for 3D printer. The processed PLA-ZnO feedstock filaments were subjected to mechanical, thermal and morphological analysis. The results of the study suggested that PLA-2% ZnO feedstock filaments prepared under 15 kg load and 0.15Nm torque exhibited better mechanical properties. On account of shape memory effects, PLA-ZnO composite has shown the good shape recovery up to 99.77% (based upon dimensional change) and 100% (based upon weight change) under hydro-thermal stimulus.

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“…nanoparticles shifted toward shorter wavelengths with increasing concentration of Zn 2+ dopant. Absorption analysis indicates that the doping of Zn 2+ ions introduced the new absorption energy levels because the width of the energy gap progressively improved with the increasing concentration of Zn 2+.45,46 Tauc's relationship was used for the measurement of optical band gap "E g " by extrapolating the linear portion of the (αhν) 2 versus hν (eV) curve. 47 h A h E (…”

Section: Raman Analysismentioning

confidence: 99%

“…Since a few decades, scientific researchers have shown significant interest in metal oxides due to their environmentally friendly behavior, thermal stability, ferroelectric properties, mechanical strength, and biocompatibility. These metal oxide nanostructures have significant importance in a number of applications such as in nanomedicines, electrochemical sensors, supercapacitors, fluoresce, optoelectronics, and much more. − …”

Section: Introductionmentioning

confidence: 99%

Structural, Optical, Electrical and Photocatalytic Investigation of n-Type Zn²⁺-Doped α-Bi₂O₃ Nanoparticles for Optoelectronics Applications

Khan,

Ramzan,

Alanazi

et al. 2024

ACS Omega

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Herein, n-type pure and Zn 2+ -doped monoclinic bismuth oxide nanoparticles were synthesized by the citrate sol−gel method. X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), photoluminescence (PL) analysis, ultraviolet−visible (UV−vis) spectroscopy, and Hall effect measurements were used to study the effect of Zn 2+ on the structural, optical, and electrical properties of nanoparticles. XRD revealed the monoclinic stable phase (α-Bi 2 O 3 ) of all synthesized samples and the crystallite size of nanoparticles increased with increasing concentration of dopant. Optical analysis illustrated the red shift of absorption edge and blue shift of band gap with increasing concentration of dopant. Hall Effect measurements showed improved values (2.79 × 10 −5 S cm −1 and 6.89 cm 2 /V•s) of conductivity and mobility, respectively, for Zn 2+doped α-Bi 2 O 3 nanoparticles. The tuned optical band gap and improved electrical properties make Zn 2+ -doped α-Bi 2 O 3 nanostructures promising candidates for optoelectronic devices. The degradation of methylene blue (MB, organic dye) in pure and zinc-doped α-Bi 2 O 3 was investigated under solar irradiation. The optimum doping level of zinc (4.5% Zn 2+ -doped α-Bi 2 O 3 ) reveals the attractive photocatalytic activity of α-Bi 2 O 3 nanostructures due to electron trapping and detrapping for solar cells.

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Lithium ion assisted luminescence and ferromagnetism in europium doped zinc oxide

Cited by 25 publications

References 48 publications

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO₂ Nanoparticles as Anodes in Li-Ion Batteries

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO₂ Nanoparticles as Anodes in Li-Ion Batteries

On Mechanical, Thermal, Morphological and Shape Memory Effect of Sol-Gel Prepared ZnO Nanoparticle Reinforced PLA Composites Materials

Structural, Optical, Electrical and Photocatalytic Investigation of n-Type Zn²⁺-Doped α-Bi₂O₃ Nanoparticles for Optoelectronics Applications

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Lithium ion assisted luminescence and ferromagnetism in europium doped zinc oxide

Cited by 25 publications

References 48 publications

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO2 Nanoparticles as Anodes in Li-Ion Batteries

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO2 Nanoparticles as Anodes in Li-Ion Batteries

On Mechanical, Thermal, Morphological and Shape Memory Effect of Sol-Gel Prepared ZnO Nanoparticle Reinforced PLA Composites Materials

Structural, Optical, Electrical and Photocatalytic Investigation of n-Type Zn2+-Doped α-Bi2O3 Nanoparticles for Optoelectronics Applications

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About

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO₂ Nanoparticles as Anodes in Li-Ion Batteries

Influence of Doping and Controlled Sn Charge State on the Properties and Performance of SnO₂ Nanoparticles as Anodes in Li-Ion Batteries

Structural, Optical, Electrical and Photocatalytic Investigation of n-Type Zn²⁺-Doped α-Bi₂O₃ Nanoparticles for Optoelectronics Applications