JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2022
·Vol. 105
·期 8
·5167-5177
·
IF 4.186
Ruili Zhang,Delong Ma,Jianrong Wang,Yang Chen,Xun Hu
A detailed structural investigation of a series of phosphate laser glasses with composition x Bi 2 O 3 – y Al 2 O 3 –(100 − x – y )NaPO 3 ( x = 0, 10; y = 0, 5, 10, 15, 20) has been conducted using solid-state nuclear magnetic resonance (NMR) techniques and X-ray photoelectron spectroscopy (XPS). 31 P MAS NMR spectroscopy demonstrates that the addition of Bi 2 O 3 and Al 2 O 3 leads to the depolymerization of the phosphorus chain in the process of Q 2 → Q 1 → Q 0 . The various phosphorus species (Q n , n = 0, 1, 2) are identified by 31 P single pulse, 31 P{ 27 Al} rotational echo adiabatic passage double resonance, 31 P{ 27 Al} J-coupling-based heteronuclear multiple-quantum coherence, and 1D refocused INADEQUATE experiments. The results of 23 Na{ 31 P}, 31 P{ 23 Na}, 27 Al{ 31 P} rotational echo double resonance, and XPS consistently confirm that Na + , Al 3+ , and Bi 3+ ions are all bound by phosphorus tetrahedron [PO 4 ] 3− . No bond is formed between these glass modifiers. Based on the complementary evidence from previous experiments, comprehensive local structure models are developed for these Bi 2 O 3 –Al 2 O 3 –NaPO 3 glasses.
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2019
·Vol. 103
·期 1
·183-192
·
IF 3.094
Xueyun Liu,Cuimei Cheng,Xiaoman Li,Qing Jiao,Shixun Dai
The design of functional materials with tunable broadband luminescence performance is still of great interest in the fields of lighting, solar cells, tunable lasers, and optical amplifiers. Here, via a melt-quenching method, a series of bismuth (Bi)-doped germanium-borate glasses with composition of 40GeO 2 –25B 2 O 3 –25Gd 2 O 3 –10La 2 O 3 – x Bi 2 O 3 have been prepared, in which multiple Bi active centers can be stabilized simultaneously. Dual-modulating modes of visible (380-750 nm) and near-infrared (NIR) (1000-1600 nm) broadband photoemissions were effectively controlled under flexible excitation scheme. Photoluminescence (PL) spectra at low temperature 10-298 K were appropriately employed to interpret such an unusual wide visible emission band. To further illustrate the origin of NIR component, transmission electron microscopy (TEM) measurement was carried out. It is demonstrated experimentally that the visible emission mainly originates from the collective contribution of the 3 P 1 / 3 P 0 1 S 0 transitions of Bi 3+ , while the broadband NIR luminescence should be related to the formation of low valent Bi + and (or) Bi 0 centers. This work may help to enhance the knowledge of the complex luminescence mechanism for the Bi species and it also enables such transparent glass materials to be a promising candidate for the multifunctional tunable light source.
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JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2026
·
IF 3.6
Ziang Su,Xin Wang,Yan Sun,Ruilin Zheng,Lu Deng,Pengpeng Su,Xinyu Liu,Lili Hu,Shubin Chen
Phosphate laser glasses often face a trade-off between enhanced optical performance and chemical durability. The integration of fluorine into phosphate laser glasses presents a promising strategy for tailoring their properties, yet a comprehensive understanding of the underlying structural evolution and its correlation with macroscopic performance remains incomplete. This work investigates a series of neodymium-doped phosphate glasses with incremental substitution of F ‒ for O 2‒ Structural analyses (Raman, FTIR, NMR, XPS) reveal that F atoms preferentially coordinates with Al, saturating the Al(6) sites near [Al(OP) 4 F 2 ] at a critical F/Al ratios of 2.86. Beyond this, excess F depolymerizes the phosphorus network, converting Q 2 to Q 1 units. This transition suggests property trends: doping below the threshold (F/Al < 2.86) enhances chemical durability, hardness, and reduces the nonlinear refractive index, while higher concentrations induce degradation. Spectroscopically, F increases Nd 3+ site ionicity without compromising the stimulated emission cross-section, confirming its utility for designing high-performance laser glasses.
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Nature Communications
·
2026
·
IF 15.7
Zhou Fengxian,Yang Yingguo,Feng Kai,Hu Zhiping,Wang Pengwei,Luo Ran,Wu Daofu,Zhang Zeyu,Liu Zhengzheng,Xue Zixiao,Ou Zeping,Sun Kuan,He Jin,Du Juan
Recent breakthroughs in three-dimensional (3D) printing of glass have enabled precise shaping of glass structures from macro to microscale while retaining their excellent physical and chemical properties. However, current functional developments in 3D printed glass primarily focus on leveraging its intrinsic optical transparency, with limited exploration of photonics application. 3D-printed glass functionalized by quantum dots (QDs) will hold great promise for creating desired photonic functional macro- and microstructures. However, voxel-precision customization of photonic functions in 3D printed glass by the monodispersed and size-controlled QDs is fundamentally conflict with the high-temperature sintering process required in 3D printed glass. Here, we present a simple, cost-effective method for creating a library of QDs functionalized 3D-printed glasses with tunable UV-VIS-IR photoluminescence (PL) by printing nanoporous glass (NG) followed by low-temperature nanoscale engineering of QDs growth. The integration of uniform and size-controlled QDs imparts 3D printed glass with fine tuning in composition, architecture, and photonic functionalities, while nanoscale engineering of the micro-environment enables precise tailoring of various QDs with enhanced optical performance and stability. This universal approach establishes a benchmark for 3D-printed functional glasses with advanced photonic capabilities.
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2022
·Vol. 105
·期 5
·3291-3302
·
IF 4.186
Yan Sun,Juping Ma,Chongyun Shao,Xin Wang,Fei Yu,Meisong Liao,Lili Hu,Jonathan Knight
In this work, we revealed the possible mechanisms of the photodarkening in Pr 3+ ions singly doped and Pr 3+ /Ce 3+ co-doped silicate glasses and fibers induced by X-ray and 488-nm laser radiations and studied the role of Ce 3+ in increasing radiation resistance in Pr 3+ -doped silicate glasses and fibers. The absorption, emission, electron paramagnetic resonance (EPR), radiation induced attenuation spectra, and X-ray photoelectron spectroscopy (XPS) of Pr 3+ singly doped and Pr 3+ /Ce 3+ co-doped silicate glasses before and after X-ray radiation were measured and analyzed. The fluorescence intensity and photoinduced attenuation of Pr 3+ singly doped and Pr 3+ /Ce 3+ co-doped silicate fibers at visible wavelengths pumped by 488-nm laser were measured and analyzed. The influence of Ce 3+ ions co-doping on the spectroscopic properties of Pr 3+ ions as well as the radiation-induced defects in silicate glasses was studied. Results demonstrate that both X-ray and 488-nm laser radiations will induce photodamage in Pr 3+ ions-doped silicate glasses and fibers. Co-doping Ce 3+ (by up to 1 mol%) is efficient to suppress the darkening induced by both X-ray and 488-nm laser radiations without influence on the luminescence behavior of Pr 3+ ions in silicate glasses and fibers. Our studies demonstrate the promising potential of Pr 3+ /Ce 3+ co-doped silicate glasses for visible lasing applications.
研究领域:
光学材料
·
光子学
·
稀土掺杂玻璃
·
辐射效应
·
光纤光学
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Ying Li,He Li,Guangjun Yang,Xiwei Qi
A series of La 2 O 3 -Ga 2 O 3 -0.08Eu 2 O 3 - x Dy 2 O 3 amorphous samples ( x = 0–0.14, interval of 0.01) were synthesized via containerless solidification. XRD results demonstrated that the prepared materials possessed an amorphous structure with a broad diffraction hump instead of sharp crystalline peaks. Differential thermal analysis (DTA) revealed that Dy 2 O 3 doping barely altered the glass transition temperature ( T g ) but significantly increased thermal stability and crystallization characteristic temperature ( T x ) and thermal stability parameter Δ T ( T x - T g ), with the maximum Δ T reaching ∼96 °C at x = 0.09. Concentration quenching of Dy 3+ was dominated by multipolar interaction, confirmed by a critical distance ( R c ) of 18.98 Å and Dexter theory analysis. The optical band gap ( E opt ) remained ∼3.72 eV at x ≤ 0.06 and decreased to ∼3.42 eV at x = 0.11. CIE standard 1931 chromaticity coordinate values together with correlated color temperature (CCT) were tunable, with emission color evolving from warm reddish-orange to orange-yellow (CCT: 2250–3240 K). The excellent thermal stability, tunable PL, and tunable CCT render these amorphous materials promising candidates for solid-state luminescent devices.
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Materials
·
2026
·Vol. 19
·期 9
·1685
·
IF 3.7
Runze Zhou,Xinqiang Yuan,Longfei Zhang,Chi Zhang,Hongxing Dong,Long Zhang
Highlights Data-driven framework for fluoride-glass prediction and inverse design. The genetic-algorithm–optimized backpropagation neural network jointly predicts refractive index and density. Bayesian hyperparameter tuning enhances accuracy and robustness. Constraint-aware inverse design ranks feasible compositions by targets & similarity. SHapley Additive exPlanations analysis is employed to quantify feature importance and enhance the interpretability of the model. With the increasing application of novel glass materials in the field of optics, traditional empirical and trial-and-error approaches to glass development are gradually becoming insufficient to meet escalating performance demands. In this study, we propose a neural network-based machine learning method for the design of advanced fluoride glass materials. Predictive models for density and refractive index were first developed based on online fluoride glass datasets. Moreover, SHapley Additive exPlanations (SHAP) analysis was adopted to uncover the quantitative composition-property relationship. Then, the well-trained model was employed for inverse design, identifying specific compositions that fulfill desired properties in terms of density and refractive index. Finally, several recommended compositions were experimentally validated and the measured density and refractive index matched well with the corresponding input values, thereby confirming the effectiveness of the proposed method in designing new fluoride glass materials.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Xi Zhang,Shuting Lian,Yue Li,Shuguang Cai,Xueqing Xiao,Xingfang Huang,Li Huang,Chan Zheng
Nonlinear optical (NLO) materials capable of efficient frequency conversion, optical switching, and all-optical signal processing are fundamental building blocks for modern photonics and quantum technologies. Herein, we report on lanthanide-based metal-organic framework (Ln-MOF) composite gel glasses, employing central metal ion engineering as an efficient strategy for tailoring their third-order NLO responses. Three isostructural Ln-MOFs based on La 3 + (4 f⁰), Ce 3+ (4 f¹), and Pr 3+ (4 f²) are synthesized and uniformly incorporated into transparent silica gel glass matrices via sol-gel processing. Combined morphological, structural, and optical investigations demonstrate the successful preparation of Ln-MOFs and their integration into composite gel glasses. Open-aperture Z-scan measurements reveal a distinct and counterintuitive trend in the nonlinear absorption coefficients (i.e., La 3+ > Ce 3+ > Pr 3+ ), which mainly originates from the central-ion-dependent charge transfer polarizability within the MOFs. The NLO performance of Ln-MOF@SiO 2 gel glasses is enhanced compared with that of Ln-MOFs owing to the matrix effect. Furthermore, the Ln-MOFs and Ln-MOF@SiO 2 gel glasses exhibit wavelength-dependent transitions from reverse saturable absorption to saturable absorption. The resulting composite gel glasses combine the molecular designability of Ln-MOFs with the optical transparency, mechanical robustness, and processability of inorganic glasses, offering an integrable solid-state platform for NLO device applications. Our work not only elucidates the dominant role of charge transfer processes in governing the NLO properties of Ln-MOF materials but also provides theoretical insights and a robust platform for the design of high-performance, integrable solid-state nonlinear optical devices.
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 3
·e70640
·
IF 4.2
Yueting Liu,Yao Ji,Su Yin,Qinyuan Zhang
Fluorophosphate (FP) glasses are promising materials for advanced photonic applications, yet their performance is often compromised by challenges in conventional high-temperature melting (HTM) synthesis, such as fluoride volatilization and hydroxyl contamination. This study introduces a comprehensive strategy to overcome these limitations by integrating thermodynamic prediction with an advanced fabrication technique. First, a thermodynamic method was employed to successfully predict the glass-forming region (GFR) of the RF n –AlF 3 –Sr(PO 3 ) 2 system, enabling the rational design of FP compositions with excellent anti-crystallization stability (Δ T > 100°C), a high elastic modulus (up to 123.2 GPa), and a low nonlinear refractive index (1.06–1.17 × 10 −13 esu). Subsequently, a comparative investigation was conducted on Nd 3+ -doped MgF 2 –AlF 3 –Sr(PO 3 ) 2 –Ba(PO 3 ) 2 glasses prepared by conventional HTM and spark plasma sintering (SPS). The results demonstrate that the rapid, low-temperature, vacuum‑assisted SPS process significantly enhances fluorine retention by up to 76% and drastically reduces the hydroxyl absorption coefficient from over 10 to 0.09 cm −1 , which induce structural modifications and favorably alters the physical and 4 F 3/2 → 4 I 9/2 transition properties of Nd 3+ -doped FP glasses. Specifically, glasses fabricated via SPS exhibit higher hardness, reduced nonlinear effects, enhanced emission intensity, a more symmetric local ligand field, and an increase in fluorescence lifetime by up to 38%. This work establishes an efficient paradigm for developing high-performance FP glasses and provides fundamental insights into their composition–processing–structure–property relationship, paving the way for next-generation optical materials and devices.
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JOURNAL OF LUMINESCENCE
·
2022
·
IF 4.171
Yingying Chen,Enrou Mei,Xiaojuan Liang,Qing Chen,Weidong Xiang
All-inorganic perovskite nanocrystals (PNCs) hold tremendous prospect in optoelectronics , while the instability has always troubled us to the wide application of perovskite materials. Here, the dual-phase CsPb 2 Br 5 /CsPbBr 3 PNCs were precipitated in the phosphosilicate glass matrix by a melt-quenching method for the first time. Impressively, the introduction of alkaline earth metal oxide CaO was utilized to adjust glass structure, and successfully realizing the conversion between the two phases. To our surprise, the CsPb 2 Br 5 /CsPbBr 3 @glass (PNG) owned the optical characteristics such as narrowband emission, high photoluminescence quantum yield (PLQY ∼ 52%) and tunable PL emission (505–526 nm). In addition, the obtained CsPb 2 Br 5 /CsPbBr 3 @glass exhibited excellent thermal, water and light stabilities. More excitingly, a conceptual experiment was carried out through commercial TFT-LCD devices, and the color gamut of the prepared PNG@PET yellow-emitting composite film covered 130% of National Television System Committee (NTSC) and 97% of Rec.2020, and maintained excellent display performance even after 72 h of continuous operation. This work undoubtedly not only provided a new avenue to control the precipitate composite perovskites in glass, but also demonstrated composite perovskites materials have great potentials for future practical backlit display applications.
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International Journal of Applied Ceramic Technology
·
2021
·Vol. 19
·期 2
·729-738
·
IF 1.968
Xiao Ma,Zhifeng Huang,Hailong Yuan,Xiangyu Lu,Yujuan Zhou,Qiang Shen,Fei Chen
The traditional model for wLEDs usually encapsulates the phosphor and resin mixture on the InGaN blue-emitting chip. However, the poor thermal stability of silicone resin will lead to the reduction of the luminescent intensity of the wLED devices. Glass has excellent thermal stability and transparency, which is a promising alternative to resins. In this work, Ce-doped silicate luminescent glasses have been developed by a high-temperature melting quenching method in air atmosphere. The luminescent intensity can be enhanced by increasing the heat treatment temperature and extending the heat treatment time in 10%H 2 /Ar atmosphere because Ce 4+ ions can be reduced to Ce 3+ ions. However, when the heat treatment temperature reaches 850°C, the generation of precipitates in the glass can reduce the luminescent intensity. The transmittance of glass can reach 87%, and the highest luminous intensity obtained when heat treated at 800°C. The glass transition temperature is 740°C and the thermal conductivity of the glass is .95 W m −1 K −1 , which is about five times higher than that of resin. The results show that the emerging Ce-doped silicate luminescent glass could be the potential material for wLED applications.
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Regenerative Biomaterials
·
2020
·Vol. 7
·期 3
·303-311
·
IF 4.882
Huang Deqiu,Zhao Fujian,Gao Wendong,Chen Xiaofeng,Guo Zhouyi,Zhang Wen
Strontium-substituted bioactive glass (Sr-BG) has shown superior performance in bone regeneration. Sr-BG-induced osteogenesis has been extensively studied; however, Sr-BG-mediated osteoclastogenesis and the underlying molecular mechanism remain unclear. It is recognized that the balance of osteogenesis and osteoclastogenesis is closely related to bone repair, and the receptor activators of nuclear factor kappaB ligand (RANKL) signaling pathway plays a key role of in the regulation of osteoclastogenesis. Herein, we studied the potential impact and underling mechanism of strontium-substituted sub-micron bioactive glass (Sr-SBG) on RANKL-induced osteoclast activation and differentiation in vitro. As expected, Sr-SBG inhibited RANKL-mediated osteoclastogenesis significantly with the experimental performance of decreased mature osteoclasts formation and downregulation of osteoclastogenesis-related gene expression. Furthermore, it was found that Sr-SBG might suppress osteoclastogenesis by the combined effect of strontium and silicon released through inhibition of RANKL-induced activation of p38 and NF-κB pathway. These results elaborated the effect of Sr-SBG-based materials on osteoclastogenesis through RANKL-induced downstream pathway and might represent a significant guidance for designing better bone repair materials.
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