Preparation, phase formation and photoluminescence properties of ZnO–SiO2–B2O3 glasses with different ZnO/B2O3 ratios

Khalkhali, Zahra; Hamnabard, Z.; Qazvini, Shamsi Sadat Alavi; Baghshahi, Saeid; Maghsoudipour, Amir

doi:10.1016/j.optmat.2011.11.020

Cited by 18 publications

(4 citation statements)

References 11 publications

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“…. XRD patterns obtained for different glasses with a composition (60–66)ZnO–(14–15)B 2 O 3 –(20–25)SiO 2 revealed that the amorphous structure was retained even after heat treating bulk samples for 3 h at 650°C, 775°C, and 745°C . XRD patterns for sintered BaZBS glasses, with a BaO content 10–30 mol%, show a broad peak around 2θ = 28°, Fig.…”

Section: Resultsmentioning

confidence: 90%

Sintering, Crystallization, and Dielectric Behavior of Barium Zinc Borosilicate Glasses—Effect of Barium Oxide Substitution for Zinc Oxide

et al. 2012

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Barium zinc borosilicate glasses with a molar composition xBaO-(60Àx)ZnO-30B 2 O 3 -10SiO 2 , where x ranged from 0 to 60 mol%, were prepared using melt-quenching method. The effect of BaO substitution for ZnO on the sintering, crystallization, and dielectric characteristics has been investigated. The behavior of the studied barium zinc borosilicate glasses was mainly determined by the relative amount of the structural modifier oxides (BaO and ZnO) and the ionic size, and field strength of the modifying cations (Ba 2+ , Zn 2+ ). Increased amounts of BaO decreased both glass transition temperature and crystallization temperature, while increasing the relative dielectric constant. Sintering occurred before crystallization for glasses where substitution of BaO for ZnO was up to 30 mol%, but for higher substitution levels, crystallization occurred during the sintering process hindering densification.

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Section: Resultsmentioning

confidence: 90%

Sintering, Crystallization, and Dielectric Behavior of Barium Zinc Borosilicate Glasses—Effect of Barium Oxide Substitution for Zinc Oxide

et al. 2012

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“…This indicates that the higher the heat-treatment temperature, the better the crystallization phase formed in the glass matrix [23]. The increase of NBOs promotes the replacement of oxide that leads to a greater formation of crystal, thus a higher composition of ZnO leads to a better crystallization of the zinc silicate phase [24].…”

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

Phase Transformation, Optical and Emission Performance of Zinc Silicate Glass-Ceramics Phosphor Derived from the ZnO–B2O3–SLS Glass System

et al. 2020

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A new transparent zinc silicate glass-ceramic was derived from the 55ZnO–5B2O3–40SLS glass system via a controlled heat-treatment method. The precursor glass sample was placed through the heat-treatment process at different temperatures to study the progress in phase transformation, optical performance and emission intensity of the zinc silicate glass-ceramics. For this project, material characterization was measured through several tests using densimeter and linear shrinkage measurement, X-ray diffraction (XRD), Fourier transform infrared reflection (FTIR), ultraviolet–visible (UV–Vis) and photoluminescence (PL) spectroscopy. The density and linear shrinkage measurements show that the density of the particular glass-ceramic samples increases with the progression of heating temperature. The XRD analysis displays the result in which the zinc silicate crystal starts to grow after the sample was treated at 700 °C. In addition, the FTIR spectra indicated that the crystallization of the zinc silicate phase occurred with the appearance of SiO4, ZnO4 and Si-O-Zn bands. UV–visible exhibited the small changes when the value for the optical band gap decreased from 3.867 to 3.423 eV, influenced by the temperature applied to the sample. Furthermore, the PL spectroscopy showed an enhancement of broad green emission at 534 nm upon the increased heat-treatment temperature. Thus, it can be concluded there is the progression of crystal growth as the heat-treatment temperature increased; three emission peaks appeared at 529, 570 and 682 nm for the green, yellow and red emissions, respectively.

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“…The main reason for the increment was the substitution of ZnO for B2O3 in the host matrix, which enabled the formation of NBOs. Furthermore, the concentration of the trap centers increased with the addition of ZnO, which acted as a UV emission center [55]. Therefore, the optimum amount of B2O3 was chosen at 30 wt%.…”

Section: Photoluminescence Analysismentioning

confidence: 99%

Effect of ZnO on Luminescence Performance of Terbium-Activated Zinc Borosilicate Glasses

Dayioglugil,

Solak

2024

Materials

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In this study, terbium-doped ZnO-SiO2-B2O3-Na2O glasses were fabricated with the conventional melt-quenching method. The effect of altering the concentration of the host matrix on luminescence performance was investigated in terms of different ZnO/B2O3 and ZnO/SiO2 ratios. FT-IR results indicate that bridging oxygens (Bos) were converted to non-bridging oxygens (NBOs) with increments of ZnO. Furthermore, the emission intensity and luminescence lifetime of samples were influenced by the amount of ZnO; this was proven with photoluminescence spectra results. The maximum emission intensity was observed at a 1.1 ZnO/B2O3 ratio and a 0.8 ZnO/SiO2 ratio; however, the highest luminescence lifetime was observed at a 1.1 ZnO/SiO2 ratio. The emission intensity and luminescence lifetime of glass samples were improved by heat treatment as a result of the formation of willemite and zinc oxide phases. An increase in the ZnO/SiO2 ratio facilitated the formation of willemite and zinc oxide phases; therefore, crystallinity was directly related to the luminescence behavior of glass samples.

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Preparation, phase formation and photoluminescence properties of ZnO–SiO2–B2O3 glasses with different ZnO/B2O3 ratios

Cited by 18 publications

References 11 publications

Sintering, Crystallization, and Dielectric Behavior of Barium Zinc Borosilicate Glasses—Effect of Barium Oxide Substitution for Zinc Oxide

Sintering, Crystallization, and Dielectric Behavior of Barium Zinc Borosilicate Glasses—Effect of Barium Oxide Substitution for Zinc Oxide

Phase Transformation, Optical and Emission Performance of Zinc Silicate Glass-Ceramics Phosphor Derived from the ZnO–B2O3–SLS Glass System

Effect of ZnO on Luminescence Performance of Terbium-Activated Zinc Borosilicate Glasses

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