The effect of Mg introduction on structural and luminescence properties of Zn2SiO4:Mn phosphor

Красненко, Т. И.; Zaitseva, Natalia A.; Ivanova, I. V.; Бакланова, И. В.; Samigullina, R. F.; Rotermel, M. V.

doi:10.1016/j.jallcom.2020.156296

Cited by 18 publications

(8 citation statements)

References 48 publications

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“…Meanwhile, the other study provided a significant finding of blue emission pronounced in ZBS samples due to the ZnO crystalline phase [49]. It was rarely found in other zinc silicate-based host matrix as usually, green and yellow were commonly found in general [50,51]. Meanwhile, an intensified red band prominently occurred at 643 nm is due to the structural defect in ZnO that appeared in the form of oxygen vacancy and zinc interstitial [16,40], which was also found earlier in [52].…”

Section: Optical Characterization Of the Zno-b 2 O 3 -Sio 2 (Zbs) Glamentioning

confidence: 65%

Effects of Sintering Temperature Variation on Synthesis of Glass-Ceramic Phosphor Using Rice Husk Ash as Silica Source

et al. 2020

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In this study, the authors attempted to propose the very first study on fabrication and characterization of zinc-boro-silicate (ZBS) glass-ceramics derived from the ternary zinc-boro-silicate (ZnO)0.65(B2O3)0.15(RHA)0.2 glass system through a conventional melt-quenching method by incorporating rice husk ash (RHA) as the silica (SiO2) source, followed by a sintering process. Optimization of sintering condition has densified the sintered samples while embedded beta willemite (β-Zn2SiO4) and alpha willemite (α-Zn2SiO4) were proven in X-ray diffraction (XRD) analysis. Field emission scanning electron microscopy (FESEM) has shown the distribution of willemite crystals in rhombohedral shape crystals and successfully form closely-packed grains due to intense crystallization. The photoluminescence (PL) spectra of all sintered ZBS glasses presented various emission peaks at 425, 463, 487, 531, and 643 nm corresponded to violet, blue, green, and red emission, respectively. The correlation between the densification, phase transformation, microstructure, and photoluminescence of Zn2SiO4 glass-ceramic phosphor is discussed in detail.

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Section: Optical Characterization Of the Zno-b 2 O 3 -Sio 2 (Zbs) Glamentioning

confidence: 65%

Effects of Sintering Temperature Variation on Synthesis of Glass-Ceramic Phosphor Using Rice Husk Ash as Silica Source

et al. 2020

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“…However, Zn 2 + ions have a much smaller effective ionic radius (0.74 Å) than Sr 2 + ions (1.18 Å), they are ideal for occupying at ten coordinated Sr 2 + sites. [25,26] Furthermore, the relative intensity of diffraction peaks are different, especially for the diffraction peaks at (0 1 0), (2 1 1), (2 0 2), (2 1 2) and (2 1 3) lattice facets. This fact could be explained by taking the structural features of tetragonal phase into account.…”

Section: Effect On Crystal Structure Due To Co-doping Of Zinc Oxidementioning

confidence: 99%

“…In this case, the a-axis will be determined by the sizes of those tetrahedral rings in which Sr 2 + ion are replaced by Zn 2 + ion. [25] It appears that after doping with zinc oxide, a limited number of atoms in crystals deviate from their typical sites, creating slight lattice distortion. [27] The minor improvements in lattice constants indicate that zinc ions have been effectively incorporated into the Sr-silicate lattice.…”

Section: Effect On Crystal Structure Due To Co-doping Of Zinc Oxidementioning

confidence: 99%

Crystal Structure Induced Enhanced Afterglow Luminescence from Rare‐Earth Ion Doped Strontium Silicate Phosphors

2021

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An orange-red (∼ 610 nm) emitting Sr 3 SiO 5 :Eu 2 + ,Zn 2 + ,Dy 3 + long afterglow phosphor was synthesized using high temperature (1100°C-1500°C) based solid-state reaction method under controlled reducing atmosphere. X-ray diffraction (XRD) study confirms the tetragonal lattice structure having space group P4/ncc. Scherrer's size plot and Williamson-Hall methods have been applied to study the particle size distribution and inherent strain, respectively, using crystallographic data obtained from XRD patterns. Electron microscopy images showed the surface morphology with an average crystallite size of 0.412 μm. Furthermore, detailed luminescence study was performed to observe photoluminescence (PL) and afterglow characteristics. An optimal PL emission peak was registered at ∼ 610 nm when the phosphor was excited by visible blue (∼ 465 nm) light, which is due to the transitions from 4f 6 5d 1 to 4f 7 energy levels of Eu 2 + ions. The enhanced afterglow property of > 20 minutes has been achieved for dark-adapted human eyes, which could be utilized for designing strategic markings and signage boards that could glow in dark.

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“…Song, X. M. Chen, C. W. Zheng, small solid solution limits of Zn in Mg2SiO4 and Mg in Zn2SiO4 are observed, and the bi-phase structure is confirmed in (Mg1-xZnx)2SiO4 ceramics with x = 0.1-0.9. And about the influence of magnesium on the luminescence of manganese-doped zinc silicate, the authors [7,10,[18][19][20][21][22] limited their investigation only when replacing a small amount of zinc by magnesium. In addition, the appropriate magnesium content for the sample to have the maximum luminescence indicated by J. D. Liu et al [20] and Y. Hao et al [23] are different.…”

Section: Introductionmentioning

confidence: 99%

“…For example, as shown in document, [6] the synthesis of Zn2SiO4:Mn 2+ phosphors typically uses ZnO, SiO2, and MnO or MnCO3 as raw materials and the sintering is often carried out at temperatures from 1100 o C to 1400 o C for 2 to 4 h. The products obtained after calcination are often agglomerated and not uniform, and it is necessary to regrind and reheat them for producing single-phase products. [5,[7][8][9] Besides, to protect Mn(II) ions from oxidation, it is necessary to sinter the post-grinding raw materials in nitrogen or nitrogen/hydrogen atmosphere. [9][10][11] Therefore, the study of reducing the sintering temperature when synthesizing single-phase Zn2SiO4:Mn phosphors is of great significance.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of yellow and green phosphors based on zinc orthosilicate doped by manganese at low temperature by impregnation – coprecipitation method

Thanh,

Thanh

2023

Vietnam Journal of Chemistry

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This work studies the influence of magnesium concentration, sintering temperature, boric and acetic acid to synthesize yellow and green phosphors based on zinc orthosilicate doped by manganese at low temperature by a novel approach, the impregnation ‐ coprecipitation method. The samples were investigated by thermal analysis, luminescence spectroscopy, XRD, SEM and EDS. The results showed that the single‐phase zinc magnesium orthosilicate/borosilicate phosphors doped by manganese with rhombo. H. axes structure of α‐Zn2SiO4 were successfully synthesized when sintering corresponding precursors at 900°C for 45 minutes. Their luminescence efficiency is higher than that of the control samples prepared by coprecipitation method. The magnesium content for the maximum luminescence efficiency is 20 mol % per mol of metal ions. The highest luminescence product consists of spheroidal and relatively uniform particles with sizes around 0.6‐1.0 μm. The variation of the precipitated precursor with temperature, the influence of sintering temperature on structure and luminescence, the mineralization role of boric acid and the chemical reactions that occur with generation of precipitated precursors and upon heating to give luminescent solid solution products are mentioned.

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The effect of Mg introduction on structural and luminescence properties of Zn2SiO4:Mn phosphor

Cited by 18 publications

References 48 publications

Effects of Sintering Temperature Variation on Synthesis of Glass-Ceramic Phosphor Using Rice Husk Ash as Silica Source

Effects of Sintering Temperature Variation on Synthesis of Glass-Ceramic Phosphor Using Rice Husk Ash as Silica Source

Crystal Structure Induced Enhanced Afterglow Luminescence from Rare‐Earth Ion Doped Strontium Silicate Phosphors

Synthesis of yellow and green phosphors based on zinc orthosilicate doped by manganese at low temperature by impregnation – coprecipitation method

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