JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2017
·
IF 2.124
Ren Gao,Huanping Wang,Qingong Zhu,Qinghua Yang,Xingguo Sun,Bingpeng Li,Shiqing Xu,Xianghua Zhang
The glasses of 93.9% ( x SiO 2 - y Al 2 O 3 - z MgO)-5% CaO-1% B 2 O 3 -0.1% Fe 2 O 3 were prepared, and the relationship between mechanical properties and structural stability were characterized by means of Raman spectroscopy and optical band gap values. The glass forming region is found to be x = 50–70%, y = 10–25% and z = 15–32%. As x = 65%, y = 10% and z = 25% (SAM-4), the investigated glass possesses the optimum volume density, oxygen packing density, optical band gap, banding strength , compression strength and compression modulus, which are 2.517 g/cm 3 , 77.047 mol/l, 3.56 eV, 77.04 MPa, 202.74 MPa and 106.70 GPa, respectively. Meanwhile, starting from the representative point of SAM-4 to radiate around, the volume density, oxygen density, Raman intensity and mechanical properties of the glasses are all decreasing constantly, and the optical band gap of the glasses is increasing on the contrary. Moreover, the optical band gap value and Raman spectroscopy of SAM-4 all prove that the number of oxygen bonds in the bridge reach the maximum and the highest structural stability is achieved, which further shows that it is an important reason why its mechanical properties is significantly improved.
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高影响因子
JOURNAL OF LUMINESCENCE
·
2025
·
IF 3.6
Xiaoman Li,Ruijin Fan,Pengfei Zhai,Xinyu Liu,Huijun Liu,Shitong Xu,Rongfei Wei,Hai Guo
The demands for white-light-emitting materials are becoming more and more rigorous. In this work, a novel kind of Sn 2+ /Mn 2+ doped phosphate aluminum calcium glass was fabricated by a traditional melt-quenching technique. Broadband excitation and emission of Sn 2+ ions were detected in Sn 2+ single-doped glass samples. By the modulation of excitation wavelength, tunable broadband cyan-blue light emissions of Sn 2+ were also realized. Combined with the red light emitting of Mn 2+ ion, a nearly white light with a good chromaticity coordinate (0.339, 0.298) and a relatively low correlated color temperature (CCT) of 5107 K were obtained in Sn 2+ /Mn 2+ codoped glasses due to the energy transfer process from Sn 2+ to Mn 2+ ions. In addition, after two cycles of heating and cooling treatment, the emission intensity of Sn 2+ doped glass sample remained 97.9% of the initial emission intensity at 300 K. All of these results reveal that these Sn 2+ /Mn 2+ doped aluminum calcium phosphate glasses have good resistance to thermal impacts and have prospects in white-light-emitting diodes (W-LEDs) fields.
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JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2021
·
IF 3.531
Xianying Shao,Yuebo Hu,Yujun Zhao,Shunwei Chen,Lei Liu,Jinmiao Chen,Junhao Li
Mineralizers can efficiently promote the transition of barium aluminosilicate (BaAl 2 Si 2 O 8 , BAS) from hexacelsian to celsian (H-M). However, the detailed mechanism regarding the phase transformation of BAS is still unclear, especially in different glass systems. Herein we systematically studied the crystallization behaviors of SiO 2 -Al 2 O 3 -BaF 2 glass in supercooled oxyfluoride aluminosilicate liquids with increasing Na 2 O concentration, and the influence of crystal phases precipitated from the precursor glass on the dielectric properties of oxyfluoride aluminosilicate glass ceramics was analyzed. We observed that the high addition of Na 2 O promoted no transformation of H-M, but resulted in the precipitation of second phases (e.g., NaAlSi 2 O 6 , Ba 3 AlF 9 ). Our results provide guidance for designing glass ceramics containing celsian (Monoclinic BAS) nanocrystals with superior thermodynamically stable and dielectric characters.
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高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2026
·
IF 3.6
Zhitao Shan,Hong Wang,Shujiang Liu,Yanfei Zhang,Cheng Zuo,Qiuju Zheng,Haizheng Tao,Yuanzheng Yue
In this work, we investigated the structural and physical property evolutions induced by the substitution of Al 2 O 3 by Ga 2 O 3 in two series of CaO-Al 2 O 3 -Ga 2 O 3 (CAG) glasses. To suppress crystallization, glasses with compositions of (I) 50CaO• (50- x )Al 2 O 3 • x Ga 2 O 3 ( x = 0–50 mol%) and (II) 63CaO• (37- x )Al 2 O 3 • x Ga 2 O 3 ( x = 0–37 mol%) were prepared via containerless aerodynamic levitation technique. It was found that with increasing substitution of Al 2 O 3 by Ga 2 O 3 (i.e., increasing x ), both glass series exhibited monotonic decreases in hardness, glass transition temperature and thermal expansion coefficient. High-resolution XPS analyses revealed that the two glass series exhibited distinct compositional dependences in their local structural evolution. Specifically, in series I ([CaO]:[Al 2 O 3 +Ga 2 O 3 ] = 1:1), the coordination environments of O, Ga, and Al remained largely unchanged upon substitution. In contrast, Series II ([CaO]:[Al 2 O 3 +Ga 2 O 3 ] = 12:7) exhibited significant shifts in O and Al coordination, while the Ga environment was only minimally affected. Furthermore, XPS indicated that trace OH - species preferentially interact with Al/Ga-O bonds by non-bridging oxygens within [AlO 4 ] or [GaO 4 ] tetrahedra. These findings elucidate the critical roles of both [CaO]/[Al 2 O 3 +Ga 2 O 3 ] and [Al 2 O 3 ]/[Al 2 O 3 +Ga 2 O 3 ] ratios in tailoring the structure - property relationships of CAG glasses.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Wenshun Wang,Chen Wang,Li Mei,Ximei Xiao,Qi Xue,Yi Zhang,Xiaoshang Bai,Zongchen Han,Meiwen Cao,Wen Su,Jing Fu
Cerium-doped mesoporous bioactive glass (Ce-MBG) was synthesized via a sol-gel method. • Ce incorporation enhances antioxidant activity and SOD-like catalytic performance. • Ce-MBG exhibits strong antibacterial effects against both E. coli and S. aureus . • Ce doping preserves apatite-forming ability and maintains bioactivity of MBG. • The materials show good cytocompatibility and hemocompatibility. Mesoporous bioactive glasses (MBGs) have attracted considerable attention in biomedical applications due to their high surface area and bioactivity. In this study, cerium-doped MBGs (Ce-MBGs) with varying Ce contents were synthesized via a sol-gel method. The obtained Ce-MBGs exhibited uniform morphology and well-developed mesoporous structures, as confirmed by electron microscopy and nitrogen adsorption–desorption analysis. X-ray diffraction results revealed the amorphous nature of the glass matrix, while formation of CeO 2 nanocrystals was observed with increasing cerium content. All Ce-MBGs demonstrated in vitro bioactivity after immersion in simulated body fluid, as evidenced by the formation of hydroxyapatite on their surfaces. In addition, cerium incorporation conferred concentration-dependent antioxidant activity and superoxide dismutase (SOD)-like behavior that increased with Ce content. The antibacterial efficacy against Escherichia coli and Staphylococcus aureus was markedly enhanced upon Ce doping, with all Ce-MBGs showing comparable high activity compared to pristine MBG. Cytocompatibility evaluation indicated no significant cytotoxicity, and hemolysis tests confirmed good blood compatibility. These findings demonstrate that cerium incorporation endows MBGs with multifunctional properties, making them promising candidates for applications in tissue engineering and related biomedical fields. Download: Download high-res image (209KB) Download: Download full-size image
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 4
·e70617
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IF 4.2
Ze Qiu,Wencai Cheng,Zhenwei Niu,Congcong Ding,Xiaoyan Shu,Dong Wu,Xirui Lu
Radioactive spent silica gel is a type of secondary waste generated during the decontamination and purification processes of spent fuel reprocessing. This work reports borosilicate glass containing zircon mineral phases to achieve the immobilization of such waste. The physical phase evolution, microstructure, and immobilization mechanism were systematically investigated. The XRD and refinement results confirmed the lattice substitution of uranium in zircon crystals. The XPS and UV-vis-DRS results demonstrated that the uranium mainly showed quadrivalent and pentavalent states in the ZrSiO 4 crystal. The FT-IR results demonstrated that the microcrystal glass became more structurally intact and polymerized as the uranium content in the crystal increased. EPR analysis and theoretical calculations revealed that the entry of uranium into the ZrSiO 4 structure adjusted the amount of oxygen vacancy defects in the material. The electron density difference analysis showed that the electrons produced by the vacancy defects were concentrated on the surrounding oxygen atoms. Ultimately, these behaviors enhanced the chemical stability of the material. This work provides a good strategy for the disposal of this waste and a new perspective on the entry of uranium atoms into the zircon structure in the field of radioactive waste disposal.
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2022
·Vol. 106
·期 2
·1001-1014
·
IF 4.186
Shuangli Dong,Yanqi Jia,Yao Ji,Qinyuan Zhang
Predicting the properties of glass based on compositional and structural information is a fundamental issue with enormous practical and industrial significance for the study of laser glass. Here we address this problem and demonstrate the application of phase diagram method in predicting the spectroscopic properties of Nd 3+ -doped binary and ternary silicate, binary phosphate, and borate laser glasses from their initial congruently melting compounds. In particular, spectroscopic properties, such as effective linewidth (Δ λ eff ) and fluorescence branching ratio ( β ) can be precisely predicted in all glass systems with an error less than 5%. Furthermore, a composition–structure–property database of Nd 3+ -doped ternary silicate glass system is established and preliminarily applied to the composition design and explanation of commercial glass. This study provides interpretable predictions of the optical and spectroscopic properties for Nd 3+ -doped laser glasses.
研究领域:
材料科学
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光学工程
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激光物理
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玻璃科学技术
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光谱学
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Yongsheng Sun,Shuai Zhang,Yuhan Liu,Min Sun,Kai Han,Chenliang Li,Zhiguo Xia
Long-distance and flexible optical fiber scintillators are essential under extreme operating conditions including interventional radiology and remote nuclear reactor monitoring, etc. Organic–inorganic hybrid glass fibers offer a promising solution, yet transforming cluster glasses into stable photonic architectures remains challenging. Here we report a heteroleptic strategy that exploits steric hindrance effects to precisely modulate the thermodynamic properties of hybrid Cu 4 I 4 cluster glass, further enabling ultralong, fracture-free, and perturbation-free TPP 2 MDP 2 Cu 4 I 4 (TPP = Triphenylphosphine; MDP = Methyldiphenylphosphine) glass fibers. The heteroleptic TPP 2 MDP 2 Cu 4 I 4 core glass not only overcomes the stability limitations of hybrid systems, but also exhibits a notable light yield of 38598 photons MeV −1 and a low detection limit of 62.2 nGy s −1 . We assemble these fibers into a flexible scintillation fiber array capable of imaging internal defects in confined spaces. This heteroleptic design principle in cluster glass platform can be extended to other hybrid glass fibers for emerging photonic applications.
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PubMed
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2021
·
IF 3.531
Juping Ma,Yan Jiao,Chongyun Shao,Yan Sun,Fei Yu,Lili Hu
In this work, Tb 3+ /Al 3+ co-doped and Al 3+ single doped silica glasses are taken as the research objects, and X-ray is used as the simulated light source to study the photodarkening mechanism. Detailed optical properties of the glasses before and after X-ray irradiation and the results of electron paramagnetic resonance (EPR) indicate that the photodarkening effect is attributed to the valence changes of Tb 3+ ions and the energy transfer between Tb 3+ ions and related defects. In addition, this work revealed the relationship between valence changes behavior of Tb 3+ ions and various defects in glass matrix materials, deepening the understanding of the photodarkening mechanism in Tb 3+ doped oxide glass. We envisage that our finding provides a depth-theoretical support for the synthesis of Tb 3+ -doped oxide matrix glass fibers with excellent optical and anti-photodarkening performance.
研究领域:
材料科学
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光学材料
·
光子学
·
固体物理
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高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2026
·
IF 3.6
Beibei Pan,Yuanhao Ma,Jiawei Zhao,Caiyan Chen,Shuaishuai Liu,Yang Shen,Qiuju Zheng,Yuebo Hu
Li 0.5 La 0.5 TiO 3 (LLTO) is a promising solid-state electrolyte material due to its excellent chemical stability, wide electrochemical window, and relatively high ionic conductivity. This work aims to further improve the ionic conductivity of LLTO via modification with borophosphate glasses containing lithium halides. The underlying rationale is that the unique mixed network structure of borophosphate glass can provide additional pathways for lithium ion (Li + ) transport. Furthermore, the incorporation of halogenated borosilicate glass (especially LiI) is expected not only to supply extra Li + , but also to improve the solid electrolyte interface by filling the voids among LLTO pellets, thus enhancing the overall electrochemical performance. The results demonstrate that the sample with 2 wt.% Li 2 O-B 2 O 3 -P 2 O 5 -LiI (LBPI) glass achieves a favorable room temperature ionic conductivity of 1.03 × 10 –3 S·cm –1 , which is approximately double that of the pristine LLTO. Our findings confirm the synergistic modification effect of borophosphate glass and lithium halides in improving Li + transport and present a strategic approach for developing advanced solid-state electrolytes with satisfactory electrochemical performance.
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高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Yingying Chen,Zhennan Wu,Xiaojuan Liang,Ding Nan,Wen Xu,Weidong Xiang
Inorganic perovskite nanocrystals exhibit tremendous prospects in optoelectronics . Although the stability of perovskite nanocrystals is considerably improved after being embedded in a glass matrix, subtle difference in the glass composition is still an important factor affecting the glass matrix and perovskite precipitation behavior. In this study, a series of CsPbCl 2 Br 1 nanocrystal glasses with excellent optical properties were prepared by optimizing the composition. Further, we introduced Sm 3+ into CsPbCl 2 Br 1 perovskite nanocrystal glass (PNG) to enhance photoluminescence (PL) emissions and improve the ultraviolet response and device stability of silicon photodetectors (Si PDs). After integrating the as-prepared Sm 3+ -doped CsPbCl 2 Br 1 PNG with Si PDs, the UV response of the Si PDs at 200–400 nm was significantly enhanced. In particular, the responsivity of Sm 3+ -doped CsPbCl 2 Br 1 PNG-coated Si PDs at 320 nm reaches 7.5 times that of bare Si PDs. Furthermore, Sm 3+ -doped CsPbCl 2 Br 1 PNG-coated Si PDs displayed good photocurrent stability, with a decrease of only 1.5% after 60 days of operation. Additionally, after integrating 10% Sm 3+ -doped CsPbCl 2 Br 1 PNG with InGaAs PDs, a broadband response in the ultraviolet to the infrared region is successfully achieved. This study attempts to fabricate perovskite nanocrystal glasses and provides a new perspective for next-generation high-performance UV PDs.
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高影响因子
Laser & Photonics Reviews
·
2022
·Vol. 16
·期 9
·2200020
·
IF 10.947
Shuhang Tian,Zhenguo Shi,Yongsheng Sun,Pengyu Zhang,Sheng Wu,Dongdan Chen,Puxian Xiong,Qi Qian,Zhongmin Yang
Though widely applied in light-emitting diode (LED) lighting and X-ray detection, respectively, rare-earth ions doped phosphor and scintillating single crystals still face many challenges in practicalities, like aging of package material and difficulty to construct tiny array structure. Using phosphate glass as the host is quite beneficial for solving these problems while enabling distinguished luminescence. Therefore, Eu 3+ and Tb 3+ doped phosphate glasses which, respectively, show strong red/green emissions are researched. Superior thermal stabilities (78.69% and 89.35% emission intensities remain at 150 °C) and high internal quantum efficiencies (87.3% and 68.6%) are found to guarantee the excellent photoluminescence performances. The brilliant X-ray excited luminescence properties are demonstrated by general 19.49% and 34.74% integrated emission intensities of that of commercial Bi 4 Ge 3 O 12 single crystal scintillator with the change of X-ray power. Meanwhile, Tb 3+ doped scintillating fiber is drawn. Finally, excited by 380 nm LED, color manipulation and white light generation are achieved in LEDs with a structure of stacked emitting layers (mainly Eu 3+ and Tb 3+ doped phosphate glasses). Many of the as-constructed white LED's performance parameters are much better than the commercial white LED. These results show that Eu 3+ and Tb 3+ doped phosphate glasses possess promising potential in LED lighting and X-ray detections.
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