Reddish emission of europium doped zinc oxide nanophosphor prepared through precipitation route using sodium borohydride

Singh, Rahul; King, Abhishek; Nayak, Bibhuti B.

doi:10.1016/j.jallcom.2019.04.113

Cited by 30 publications

(7 citation statements)

References 75 publications

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“…A series of techniques were adopted for the characterized such as; X-ray diffraction (XRD) using a Shimadzu diffractometer (model 6000) with CuKα radiation (λ = 1.5418 Å) in a wide range of Bragg angles (2θ) varying from 20° to 80° with a scanning rate of 2°/min at room temperature. [33,34]. In addition, a small rise in the ZnO lattice parameters was noted at doping ( Table 1 and Fig.…”

Section: Characterizationmentioning

confidence: 88%

Bright red luminescence emission of macroporous honeycomb-like Eu3+ ion-doped ZnO nanoparticles developed by gel-combustion technique

Naik

Viswanath

et al. 2020

SN Appl. Sci.

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The impact of europium (Eu 3+) ion doping has been outlined in improving the structure and optical properties of macroporous honeycomb-like zinc oxide (ZnO) nanoparticles, produced by the gel-combustion technique by changing the quantity of dopant. The X-ray diffraction (XRD) research verified that the hexagonal wurtzite structure of ZnO was not disturbed by Eu 3+ substitution. Scherrer method, Scherrer plots (SP), Williamson-Hall (W-H) plots and Size-Strain plots (SSP) were used to estimate the crystallite size. Decreased crystallite size in ZnO:Eu 3+ was noticed along with lower angle shift of XRD peaks and increased lattice parameters such as unit cell volume that can be described as replacement result of Eu 3+ at Zn sites. Fourier transform infrared (FTIR) spectroscopy analysis confirmed the Eu 3+ dopant by moving the peak from 474 cm −1 to 525 cm −1. Field-emission scanning electron microscopy (FESEM) pictures verified macroporous honeycomb-like structures. UV-Visible (UV-Vis) absorption spectroscopic studies show that the ability of ZnO:Eu 3+ nanoparticles concerning the absorption of visible light increased upon Eu 3+ doping with a red shift compared to ZnO nanoparticles. Photoluminescence (PL) emission spectra of Eu 3+ doped ZnO nanoparticles exhibited five intense band emissions at 579, 591, 617, 652, and 706 nm ascribed to 5

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Section: Characterizationmentioning

confidence: 88%

Bright red luminescence emission of macroporous honeycomb-like Eu3+ ion-doped ZnO nanoparticles developed by gel-combustion technique

Naik

Viswanath

et al. 2020

SN Appl. Sci.

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“…In recent decades, there has been scientific and technological development regarding the use of lanthanides due to their versatility in different areas, including chemical analysis [1], catalysis [2] and biologic applications [3,4]. In particular, they are used for their luminescence properties, including highly pure color [5,6] and short radiative lifetimes [7]. Among the lanthanides, europium(III) stands out for its wide range of optical applications; however, the use of pure lanthanides is uncommon due to their low efficiency of direct absorption of the 4f-4f states [8].…”

Section: Introductionmentioning

confidence: 99%

New Mononuclear Complex of Europium(III) and Benzoic Acid: From Synthesis and Crystal Structure Solution to Luminescence Emission

et al. 2020

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This study presents a general method which can be used for the synthesis of mononuclear complexes with europium(III) and organic ligands with carboxylic groups. It describes the procedure for preparing a new mononuclear coordination complex with europium(III) and carboxylate ligands sourced from benzoic acid. The construction of mononuclear complexes with a coordination sphere saturated in carboxylic ligands must go through the preparation and purification of a europium(III) intermediate complex that presents a coordination sphere with anions that will be later exchanged for carboxylic groups and finally precipitated as a solvent-free or anion-free complex within the coordination sphere. The detailed synthesis procedure for powders of a new complex, as well as studies of its structural composition at each phase and luminescent properties, are detailed in this study. Analytical and spectroscopic data reveal the formation of a new mononuclear complex of the general formula [Eu(OOCC6H5)3·(HOOCC6H5)2]. The crystal structure of the Eu(III) complex was solved using X-ray powder diffraction data and EXPO2014 software, and the crystal structure result was deposited in the CCDC service with number 19771999.

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“…Figure 2 shows the plot of β cosθ versus sinθ for a Bypass and b produced Mayenite nanoparticles. The crystallite size and strain could be determined from the intercept with the y-axis and the slope, respectively, of the linear fitting of Positive strain values, 0.215 , and 0.554 were obtained for bypass and produced Mayenite nanoparticles, respectively 37 . This means the Mayenite nanoparticles strain is increased relative to the cement dust strain.…”

Section: Structural Propertiesmentioning

confidence: 99%

Production of Mayenite Nanoparticles from the Toxic Cement Dust

et al. 2021

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Reddish emission of europium doped zinc oxide nanophosphor prepared through precipitation route using sodium borohydride

Cited by 30 publications

References 75 publications

Bright red luminescence emission of macroporous honeycomb-like Eu3+ ion-doped ZnO nanoparticles developed by gel-combustion technique

Bright red luminescence emission of macroporous honeycomb-like Eu3+ ion-doped ZnO nanoparticles developed by gel-combustion technique

New Mononuclear Complex of Europium(III) and Benzoic Acid: From Synthesis and Crystal Structure Solution to Luminescence Emission

Production of Mayenite Nanoparticles from the Toxic Cement Dust

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