Synthesis and green luminescence of low cost Er2O3 doped zinc silicate glass-ceramics as laser materials

Effendy, Nuraidayani; Sidek, H.A.A.; Kamari, Halimah Mohamed; Zaid, Mohd Hafiz Mohd; Liew, Josephine Ying Chyi; Lee, Han Kee; Rahman, Norizah Abdul; Wahab, Siti Aisyah Abdul; Khiri, Mohammad Zulhasif Ahmad; El-Mallawany, R.

doi:10.1016/j.ijleo.2019.04.107

Cited by 13 publications

(3 citation statements)

References 18 publications

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“…Essentially, photoluminescence is a phenomenon where the emission of light happens when stimulated by short-wavelength light, usually ultraviolet (UV) light or visible light [5]. Among many types of phosphors research, zinc silicate (Zn 2 SiO 4 ) doped transition metal ions, as well as rare-earth ions have been one of the most popular host materials [6][7][8]. These numerous interests in zinc silicate phosphor also due to their interesting properties, having 2 of 16 good thermal and chemical stability [9], excel in water resistance with better resistance to nuclear radiation [10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Calcination Temperature on Crystal Growth and Optical Characteristics of Eu3+ Doped ZnO/Zn2SiO4 Composites Fabricated via Simple Thermal Treatment Method

et al. 2021

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This research paper proposes the usage of a simple thermal treatment method to synthesis the pure and Eu3+ doped ZnO/Zn2SiO4 based composites which undergo calcination process at different temperatures. The effect of calcination temperatures on the structural, morphological, and optical properties of ZnO/Zn2SiO4 based composites have been studied. The XRD analysis shows the existence of two major phases which are ZnO and Zn2SiO4 crystals and supported by the finding in the FT-IR. The FESEM micrograph further confirms the existence of both ZnO and Zn2SiO4 crystal phases, with progress in the calcination temperature around 700–800 °C which affects the existence of the necking-like shape particle. Absorption humps discovered through UV-Vis spectroscopy revealed that at the higher calcination temperature effects for higher absorption intensity while absorption bands can be seen at below 400 nm with dropping of absorption bands at 370–375 nm. Two types of band gap can be seen from the energy band gap analysis which occurs from ZnO crystal and Zn2SiO4 crystal progress. It is also discovered that for Eu3+ doped ZnO/Zn2SiO4 composites, the Zn2SiO4 crystal (5.11–4.71 eV) has a higher band gap compared to the ZnO crystal (3.271–4.07 eV). While, for the photoluminescence study, excited at 400 nm, the emission spectra of Eu3+ doped ZnO/Zn2SiO4 revealed higher emission intensity compared to pure ZnO/Zn2SiO4 with higher calcination temperature exhibit higher emission intensity at 615 nm with 700 °C being the optimum temperature. The emission spectra also show that the calcination temperature contributed to enhancing the emission intensity.

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Section: Introductionmentioning

confidence: 99%

Influence of Calcination Temperature on Crystal Growth and Optical Characteristics of Eu3+ Doped ZnO/Zn2SiO4 Composites Fabricated via Simple Thermal Treatment Method

et al. 2021

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“…However, green-light phosphor transparent ceramics also have an important role and potential in lighting, displaying, and medical treatment [ 18 , 19 , 20 ]. In the past, we studied green-light ceramics, which were mainly based on Lu 3 Al 5 O 12 :Ce 3+ (LuAG:Ce 3+ ) phosphors ceramics, as the matrix to solve the spectral regulation [ 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

(Sr, Ca)AlSiN3:Eu2+ Phosphor-Doped YAG:Ce3+ Transparent Ceramics as Novel Green-Light-Emitting Materials for White LEDs

Yao

Pan²,

Tian³

et al. 2023

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In this work, based on Y3Al5O12:Ce3+ (YAG:Ce3+) transparent ceramic and (Sr, Ca)AlSiN3:Eu2+ phosphors, novel green-light-emitting materials were systematically studied. YAG:Ce3+ transparent ceramics with different doping-concentrations, from 0% to 1% (Sr, Ca)AlSiN3:Eu2+ phosphors, were fabricated by dry pressing and vacuum sintering. The serial phosphor ceramics had 533 nm green-light emission when excited by 460 nm blue light. The PL, PLE, and chromaticity performances were measured, indicating that more of the green-light component was emitted with the increase in doping concentration. The addition of (Sr, Ca)AlSiN3:Eu2+ phosphor increased the green-light wavelength area and improved the quantum yield (QY) of the YAG:Ce3+ ceramic matrix. The phase composition, microstructure, crystal-field structure and phosphor distribution of (Sr, Ca)AlSiN3:Eu2+ phosphor-doped YAG:Ce3+ transparent ceramics were investigated, to explore the microscopic causes of the spectral changes. Impressively, (Sr, Ca)AlSiN3:Eu2+ phosphors were distributed homogeneously, and the pinning effect of phosphor caused the suppression of grain growth. The novel materials could provide an effective strategy for full-spectrum white lighting and displaying applications in the future.

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“…The solid Zn 2 SiO 4 crystal can exist in different kind of phases which growth and crystallize in different space groups [9]. Zn 2 SiO 4 has been one of the most widely used in the industry due to its ability to become an outstanding host matrix for rare-earth dopants [10][11][12]. Zn 2 SiO 4 exists in the most thermodynamically stable phase as zinc orthosilicate (α-Zn 2 SiO 4 ) crystal.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Eu3+-Doped ZnO/Zn2SiO4 Composite Phosphor for Potent Optoelectronic Applications

et al. 2021

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Eu 3+ -doped Zn 2 SiO 4 /ZnO phosphor-based composites were prepared using a simple thermal treatment method. The effect of Eu 3+ content on the morphological and photoluminescence performance was examined using XRD, FTIR, FESEM, UV-Vis, and PL measurement. The existence of two crystal phases by the XRD measurement confirmed the development of zincite (ZnO) and zinc silicate (Zn 2 SiO 4 ) crystal phases. Besides, the FTIR spectra and FESEM micrograph support the XRD result by verifying ZnO and Zn 2 SiO 4 phase formation through the existence of their characteristic Zn-O-Si and Zn-O vibration modes with the decrement of SiO 4 broad absorption band as the Eu 3+ concentration increased. Also, UV-Vis absorption spectra presented by the composite samples displayed a broad absorbance that confirmed the addition of Eu 3+ ions in the ZnO/Zn 2 SiO 4 has caused the absorption edge of the curve having red shift. The photoluminescence spectrum showed red shift light emissions at 485 and 615 nm, associating with the Zn 2 SiO 4 crystal phase, in addition to the ZnO crystal phase. From the interesting results achieved, this ZnO/Zn 2 SiO 4 phosphor-based composite material can be a potent candidate in optoelectronic applications.

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Synthesis and green luminescence of low cost Er2O3 doped zinc silicate glass-ceramics as laser materials

Cited by 13 publications

References 18 publications

Influence of Calcination Temperature on Crystal Growth and Optical Characteristics of Eu3+ Doped ZnO/Zn2SiO4 Composites Fabricated via Simple Thermal Treatment Method

Influence of Calcination Temperature on Crystal Growth and Optical Characteristics of Eu3+ Doped ZnO/Zn2SiO4 Composites Fabricated via Simple Thermal Treatment Method

(Sr, Ca)AlSiN3:Eu2+ Phosphor-Doped YAG:Ce3+ Transparent Ceramics as Novel Green-Light-Emitting Materials for White LEDs

Synthesis of Eu3+-Doped ZnO/Zn2SiO4 Composite Phosphor for Potent Optoelectronic Applications

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