Wide thermal expansion in Ag0/Au0 nanoparticle doped SiO2-MgO-Al2O3-B2O3-K2O-MgF2 glass-ceramics

Garai, Mrinmoy; Molla, Atiar Rahaman; Reka, Arianit A.; Karmakar, Basudeb

doi:10.1016/j.matpr.2021.09.549

Cited by 4 publications

(5 citation statements)

References 29 publications

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“…The above results indicated that the glass systems modified by Ag nanoparticles exhibits higher stability than the unadded glass, which may be due to the homogeneous dispersion of Ag nanoparticles in the glass matrix, modifying the surface defects of the QDs and further stabilizing the lattice of perovskite. 45 In order to further improve the stability of CPBIG powder and adapt to the technical requirements of backlight display, CPBI QDs are double-coated with polymer materials. As the most promising polymer material, PS was selected for use in the industrial production of backlight films.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI₂ Glass for High Quality Backlight Display

Huang

Chen

Liang

et al. 2023

ACS Sustainable Chem. Eng.

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All-inorganic perovskite CsPbX 3 (X = Cl, Br, I) nanocrystals (NCs) have generated significant attention in the emerging display industry because of their narrow-band emission, high color purity, and facile preparation and processing. By controlling the deposition of Ag nanoparticles in the B−Si−Zn glass matrix, CsPbBrI 2 NC glass with significantly enhanced photoluminescence (PL) intensity (about 6.3 times) was successfully prepared, and the photoluminescence quantum yield (PLQY) is increased from 12.4% to 36.9%. More meaningfully, the high-performance glass powders were incorporated into polystyrene (PS) films through solution and blending techniques, and the films prepared by the latter had superior color coordinates and environmental stability, particularly the intense blue light stability. Under conditions of 60 °C, 90% relative humidity (RH), and 10 000 nit blue light irradiation for 40 d, the PL intensity decline rate of blended film does not exceed 5%. In addition, the light conversion film based on Ag@CsPbBrI 2 glass with CsPbBr 3 glass powders exhibits a wide color gamut of 125.2% of the NTSC 1953 standard, which shows richer colors than commercial displays on the liquid crystal display (LCD) screen, further opening the space for the development of the quantum dot film industry.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI₂ Glass for High Quality Backlight Display

Huang

Chen

Liang

et al. 2023

ACS Sustainable Chem. Eng.

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“…This increase in density is primarily related to the higher atomic weight of Ag (108) and Au (197) in case of NPG‐2 & 3 base glasses than Cu (63) in NPG‐1 base glass. In addition, the higher specific surface area of Ag and Au nanoparticles may increase the dissolution rate for any agglomeration state 16 . It may in turn create ordered zones within the SiO 2 ‐MgO‐Al 2 O 3 ‐B 2 O 3 ‐K 2 O‐MgF 2 ‐SnO glass system, consequently contributing towards the increased solubility and density of the corresponding base glasses.…”

Section: Resultsmentioning

confidence: 99%

“…In perspective of the glass‐ceramics being seen as a potential SOFC sealant, it is of interest to study the density of the base glasses first since it directly relates to their viscosity and adherence for SOFC application 16,17 . The base glass with Cu nanoparticles (NPG‐1) shows an apparent density of 2.54 ± 0.02 g.cm −3 , which increases to 2.60 ± 0.02 g.cm −3 and 2.62 ± 0.02 g.cm −3 , respectively on substitution by Ag and Au nanoparticles (NPG‐2 and NPG‐3 glasses).…”

Section: Resultsmentioning

confidence: 99%

“…In perspective of the glass-ceramics being seen as a potential SOFC sealant, it is of interest to study the density of the base glasses first since it directly relates to their viscosity and adherence for SOFC application. 16,17 The base glass with Cu nanoparticles (NPG-1) shows an apparent density of 2.54 ± 0.02 g.cm −3 , which increases to 2.60 ± 0.02 g.cm −3 and 2.62 ± 0.02 g.cm −3 , respectively on substitution by Ag and Au nanoparticles (NPG-2 and NPG-3 glasses). This increase in density is primarily related to the higher atomic The conventional melt-quenching at 1550 ± 10 • C for 2 h was sufficient to obtain bubble-free, homogeneous base glasses from various compositions (NPG-1, NPG-2, and NPG-3).…”

Section: Base Glass Characterizationmentioning

confidence: 99%

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Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application

Garai

Roy

2023

Int J Ceramic Engine & Sci

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The present work illustrates the effect of Ag and Au nanoparticle addition on the density, microstructure, phase formation and thermal performance of K 2 O-MgO-B 2 O 3 -Al 2 O 3 -SiO 2 -F glass-ceramics considered as a potential sealant material for solid oxide fuel cell (SOFC) applications. Addition of 0.2 wt.% Ag and Au nanoparticles caused a steep increase in the density of the base glasses in comparison to the glass containing an equivalent amount (0.2 wt%) of Cu nanoparticle. The glass-ceramics were prepared from the base glasses by controlled heat treatment at 900 • C, a temperature relevant for SOFC operation. They were multicrystalline having fluorophlogopite (KMg 3 AlSi 3 O 10 F 2 ) as the predominant crystal phase and norbergite (Mg 2 SiO 4 .MgF 2 ) and enstatite (MgSiO 3 ) as additional phases. Fluorophlogopite crystals form in both platelike and rod-like morphologies within the glass matrix in the microstructure of the glass-ceramics. The size of the plate-shaped fluorophlogopite crystals increases for Ag nanoparticles containing glass-ceramics in comparison to either Cu or Au nanoparticles containing glass-ceramics. The density of the Ag and Au nanoparticle glass-ceramics are also considerably higher due to the formation of a compact interlocked crystalline microstructures. The Au nanoparticle containing glass-ceramics is characterized by a large thermal expansion (coefficient of thermal expansion, CTE= 11.29 × 10 −6 /K in 50-800 • C range) which is comparable to other SOFC components. This glass/glass-ceramics sealant also possess maximum volume shrinkage in the range of 30-900 • C as well as nearly constant CTE without any considerable decrease up to 10 cycles of SOFC operations making it suitable for SOFC sealant applications. K E Y W O R D Scoefficient of thermal expansion, glass-ceramics, microstructure, sealing materials, solid oxide fuel cells (SOFCs) This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…Accelerated crystal growth in the gold-doped glass-ceramics was observed by Thieme et al during heat treatments of zinc-silicate glass [29]. Gold NPs were also introduced in the silicate glass-ceramics to establish their solid oxide fuel cell sealing ability, while no effect of NPs on the crystallization kinetics was reported [30]. Kracker et al reported on the detailed study of the optical properties of gold NPs precipitated in the silicate glass-ceramics with low thermal expansion, whereas no data were provided on the influence of gold NPs on the microstructure of the glass-ceramics [31].…”

Section: Introductionmentioning

confidence: 93%

Effect of Gold Nanoparticles on the Crystallization and Optical Properties of Glass in ZnO-MgO-Al2O3-SiO2 System

et al. 2022

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Gold nanoparticles precipitated in transparent glass-ceramics could pave the way for the development of multifunctional materials that are in demand in modern photonics and optics. In this work, we explored the effect of gold nanoparticles on the crystallization, microstructure, and optical properties of ZnO-MgO-Al2O3-SiO2 glass containing TiO2 and ZrO2 as nucleating agents. X-ray diffraction, transmission electron microscopy, Raman, and optical spectroscopy were used for the study. We showed that gold nanoparticles have no effect on the formation of gahnite nanocrystals during the glass heat treatments, while optical properties of the glass-ceramics are strongly dependent on the gold addition. A computational model was developed to predict optical properties of glass during the crystallization, and the possibility for adjusting the localized surface plasmon resonance band position with the heat treatment temperature was shown.

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Wide thermal expansion in Ag0/Au0 nanoparticle doped SiO2-MgO-Al2O3-B2O3-K2O-MgF2 glass-ceramics

Cited by 4 publications

References 29 publications

Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI₂ Glass for High Quality Backlight Display

Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI₂ Glass for High Quality Backlight Display

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application

Effect of Gold Nanoparticles on the Crystallization and Optical Properties of Glass in ZnO-MgO-Al2O3-SiO2 System

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Wide thermal expansion in Ag0/Au0 nanoparticle doped SiO2-MgO-Al2O3-B2O3-K2O-MgF2 glass-ceramics

Cited by 4 publications

References 29 publications

Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI2 Glass for High Quality Backlight Display

Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI2 Glass for High Quality Backlight Display

Performance evaluation for Ag and Au nanoparticle containing K2O‐MgO‐B2O3‐Al2O3‐SiO2‐F glass sealants for SOFC application

Effect of Gold Nanoparticles on the Crystallization and Optical Properties of Glass in ZnO-MgO-Al2O3-SiO2 System

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Product

Resources

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Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI₂ Glass for High Quality Backlight Display

Ag Nanoparticles Optimized the Optical Properties and Stability of CsPbBrI₂ Glass for High Quality Backlight Display

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application