Journal of Alloys and Compounds最新文献

{"title":"A SERS sensor of g-C3N4/Au@Ag thin film for detecting nitrofurantoin residues in honey","authors":"Caizhen Zu, Xishun Peng, Yi Long, Man Peng, Cunwei Wang, Haili Zhang, Zhangwei Tan, Yuxue He, Zhongchen Bai","doi":"10.1016/j.jallcom.2025.184173","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184173","url":null,"abstract":"Detecting antibiotic residues in food is a critical challenge for food safety assurance. This study developed a surface-enhanced Raman scattering (SERS) sensor based on two-dimensional graphitic carbon nitride (g-C₃N₄) loaded with Au@Ag core-shell nanostructures (g-C₃N₄/Au@Ag) for detecting nitrofurantoin (NFT) residues in honey. The g-C₃N₄/Au@Ag thin film was fabricated by sequentially depositing g-C₃N₄ nanosheets, Au nanoparticles, and Ag nanoparticles onto a stainless steel substrate via an electrochemical deposition method. This SERS sensor could synergistically amplify SERS signals by combining the localized surface plasmon resonance (LSPR) from the Au@Ag nanostructures with the charge transfer between the g-C₃N₄ semiconductor and Au@Ag nanostructures. The optimized SERS sensor achieved an exceptional SERS enhancement factor of 3.8×10⁶ for NFT in aqueous solutions, with a limit of detection (LOD) of 0.72<!-- --> <!-- -->nM. Moreover, this SERS sensor could also recognize NFT residues in honey matrices at an LOD of 5<!-- --> <!-- -->nM. These results provide a novel strategy for the highly sensitive detection of antibiotic residues in food safety monitoring, highlighting its potential for rapid screening of NFT residues in food.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"98 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low-Cost Samarium-Doped Mixed Alkali Borosilicate Glasses: Structural, Thermal, and Optical Characterization for Luminescent Applications in Art and Decoration","authors":"Surapich Poolprasroed, Kamonpan Pengpat, Thapanee Srichumpong, Supapon Deechob, Sukum Eitssayeam, Uraiwan Intatha, Manlika Kamnoy, Narupon Chattrapiban, Ekkapong Kantarak","doi":"10.1016/j.jallcom.2025.184167","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184167","url":null,"abstract":"Cost-effective samarium oxide (Sm₂O₃)-doped mixed-alkali borosilicate glasses were synthesized via melt-quenching at 950 °C using commercial-grade precursors. This study presents a practical and scalable route for fabricating luminescent glass with optimized Sm₂O₃ concentrations, targeting decorative and photonic applications.Structural analysis confirmed the amorphous nature and thermal stability of the glasses, while XRF revealed ppm-level transition metal impurities originating from raw materials. Despite this, increasing Sm₂O₃ content enhanced both density and orange-red luminescence under UV excitation, with optimal emission achieved at ≤0.1 mol%. Notably, samples as thin as 0.5 mm retained strong emission, demonstrating material efficiency.The chromaticity coordinates indicate warm-color emissions, with correlated color temperature (CCT) values ranging from 2370 to 2879 K. These values shift slightly under different excitation sources, demonstrating tunable visual output. Such behavior demonstrates the promise of low-cost, Sm-doped mixed-alkali borosilicate glasses as sustainable candidates for ambient lighting and decorative photonic applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"20 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First-principles study of Nb and Ta on oxidation resistance of β phase in Ti-Al-Sn-Hf-Si high-temperature titanium alloy","authors":"XiaoHui Huang, HongYu Mou, Jing Li, GuangLei Li, Meng Zhang, ShengWei Zhang, Da Li","doi":"10.1016/j.jallcom.2025.184182","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184182","url":null,"abstract":"Building on our previous insights into the oxidation resistance of the α phase in Ti-Al-Sn-Hf-Si-Ta alloy high-temperature titanium alloys, this study reveals that the β phase exhibits inferior oxidation performance. Through in situ high-temperature confocal microscopy and first-principles calculations, we demonstrate that oxidation in the Ti-Al-Sn-Hf-Si-Ta alloy initiates predominantly on β-Ti surfaces, where the energy barrier for oxygen diffusion is lower compared to α-Ti, rendering the β phase more susceptible to oxidation. Notably, doping with Nb and Ta reduces oxygen adsorption on the β-Ti (110) surface and increases the diffusion energy barrier, thereby suppressing oxygen uptake and hindering its penetration into the bulk. As a result, the incorporation of Nb and Ta significantly enhances the high-temperature oxidation resistance of the alloy. These findings offer theoretical guidance for the design of oxidation-resistant titanium alloys via strategic elemental doping for extreme-environment applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"102 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gradient Microstructure Evolution and Strength-Ductility Synergy Mechanism in a Mg-7Gd-3Y-1Zn-0.5Zr Alloy Processed by Multi-Directional Forging and Backward Extrusion","authors":"Chen Zhong, Yongjun Li, Minglong Ma, Xinggang Li, Guoliang Shi, Jiawei Yuan, Zhaoqian Sun, Kui Zhang","doi":"10.1016/j.jallcom.2025.184180","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184180","url":null,"abstract":"In this study, a large-scale conical tube made of Mg–7Gd–3Y–1Zn–0.5Zr alloy was successfully fabricated using a combined process of multi-directional forging and backward extrusion. Systematic characterization revealed that the gradient strain introduced by deformation process led to spatially heterogeneous evolution of the microstructure, including gradients in grain size, morphology and distribution of long-period stacking ordered (LPSO) phases, as well as texture. In the high-strain region, significant grain refinement, fragmentation of LPSO phases, and notable texture weakening were observed. The medium-strain region exhibited dissolution and reprecipitation of solute atoms, resulting in the formation of an alternating α-Mg/14H-LPSO sandwich structure. The low-strain region retained coarse deformed grains and kinked lamellar LPSO phases. This graded microstructure enabled the conical tube to exhibit an excellent combination of high strength (yield strength of 260<!-- --> <!-- -->MPa) and superior room-temperature ductility (elongation of 21.5%), along with significantly improved mechanical uniformity. Mechanistic analysis indicated that the enhanced performance originated from pronounced grain refinement and coordinated activation of multiple slip systems: basal &lt;a&gt; slip provided fundamental plasticity, while high Schmid factors and favorable intergranular compatibility promoted the activation of pyramidal &lt;c+a&gt; slip, effectively accommodating c-axis strain.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"114 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strength–ductility synergy via dual-scale interlocking gradient dislocation architecture","authors":"Xiao Wang ,&nbsp;Guoqiang Luo ,&nbsp;Mei Rao ,&nbsp;Xin Wang ,&nbsp;Yuexiang Xi ,&nbsp;Qinqin Wei ,&nbsp;Qiang Shen","doi":"10.1016/j.jallcom.2025.184178","DOIUrl":"10.1016/j.jallcom.2025.184178","url":null,"abstract":"<div><div>Forged GH5188 cobalt-based superalloy, owing to its exceptional high-temperature strength and oxidation resistance, has become the material of choice for critical components in aircraft engines. However, during service its subsurface layer is prone to stress relaxation and crack initiation, significantly limiting service life. Addressing the limitations of conventional surface-strengthening techniques such as shot peening and laser shock peening—whose reinforcement layers are shallower than 100 μm and whose post-processing costs are prohibitive—this study proposes an in-situ surface-strengthening strategy based on orthogonal cutting. During machining, a dual-scale interlocking network—an architecture consisting of 36 μm non-recrystallized coarse grains and 9.8 μm dynamically recrystallized fine grains—is formed on the GH5188 subsurface, and a dislocation density gradient from 2.39 × 10¹⁴ m⁻² at the surface to 1.22 × 10¹⁴ m⁻² at 400 μm depth is established. This in-situ approach increases the tensile strength from 739 MPa to 1214 MPa and the elongation from 41 % to 106 %, achieving deep-layer reinforcement without any subsequent treatments. For the first time, we reveal the core mechanisms by which gradient dislocations and dual-scale interlocked grains cooperate to optimize the synergy between strength and ductility, providing a new pathway for integrated surface functionalization of superalloys.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1043 ","pages":"Article 184178"},"PeriodicalIF":6.3,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional carbon-based microfibers as bifunctional oxygen electrocatalyst","authors":"Yulu Jing, Junyuan Zhang, Jingjing Chen, Xiaolong Xu, Changyu Liu, Jianbo Jia","doi":"10.1016/j.jallcom.2025.184175","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184175","url":null,"abstract":"There is an urgent need for efficient, low-cost, and durable electrocatalysts to drive the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in advanced energy technologies. Herein, we report a Fe, Co, S, and N co-doped carbon microfibers catalyst (denoted as PAN–Fe/Co–1/15S) synthesized through electrospinning of a polyacrylonitrile-based precursor incorporating MIL-100(Fe) and cobalt nitrate, followed by controlled pyrolysis with thiourea. The resulting catalyst exhibits exceptional bifunctional activity, achieving a half-wave potential of 0.89<!-- --> <!-- -->V for ORR and an overpotential of only 320<!-- --> <!-- -->mV at 10<!-- --> <!-- -->mA<!-- --> <!-- -->cm⁻² for OER in alkaline medium, surpassing the performance of benchmark Pt/C and RuO₂. The unique microfiber architecture ensures a high specific surface area and homogeneous dispersion of active sites, as confirmed by electron microscopy and elemental mapping. Combined experimental and theoretical analyses reveal that the synergistic interplay between FeS₂N₂ and CoN₄ configurations optimizes the adsorption of oxygen intermediates, thereby accelerating reaction kinetics. When applied in a zinc–air battery, the catalyst enables a high power density of 139.6<!-- --> <!-- -->mW<!-- --> <!-- -->cm⁻². This work provides a scalable strategy for designing multifunctional electrocatalysts for renewable energy applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"78 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ion-driven actuators based on two-dimensional nanomaterials: Microstructures, mechanisms, performance, applications, and future perspectives","authors":"Hao Ning, Liang Yang, Hong Wang, Yurun Du","doi":"10.1016/j.jallcom.2025.184192","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184192","url":null,"abstract":"Two-dimensional (2D) nanoporous materials have emerged as a prominent class of advanced functional materials due to their exceptional structural tunability, rich surface chemistry, and outstanding physicochemical properties. In recent years, the rapid advancement of emerging technologies such as flexible electronics, intelligent bionic systems, and microrobotics has driven a growing demand for high-performance actuation materials. Ion-driven actuators constructed from representative 2D nanomaterials, including MXenes, metal-organic frameworks (MOFs), and molybdenum disulfide (MoS₂), have attacted considerable attention owing to their superior ion responsiveness, high energy conversion efficiency, excellent flexibility, and high designability. These characteristics make them promising candidates for next-generation artificial muscles and flexible intelligent actuation systems. This review systematically summarizes the microstructure, working mechanisms, actuation performance, multifunctional applications, and future perspectives of ion-driven actuators based on MXenes, MOFs, and MoS₂. First, the fundamental properties, microstructural features, and tunability strategies of these materials are discussed, with an emphasis on integrated design concepts for achieving structure–function synergy in ion-responsive actuation systems. Subsequently, the actuation mechanisms under electrical stimulation are elucidated, focusing on ion migration, electrochemical reactions, and surface charge redistribution. Furthermore, a comparative analysis of the actuation performance of different material systems is presented, along with a discussion of their potential applications in frontier fields such as flexible electronic devices, biomimetic engineering systems, and micro/nanoelectromechanical systems (MEMS/NEMS), highlighting their immense potential in realizing multifunctional intelligent systems. Finally, the current challenges including issues related to structural control, mechanistic understanding, and material performance optimization are identified, and future research directions are proposed. This review aims to provide theoretical insights for the design and optimization of high-performance ion-driven actuators and to promote their practical implementation and industrial translation in flexible intelligent systems.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"97 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interlayer Integrity and Mechanical Anisotropy of WAAM-Processed Al-Mg Alloys","authors":"Min-Su Jeon, Yuanjiu Huang, Dong-Hyuck Kam, Min-Sun Oh, Kee-Ahn Lee","doi":"10.1016/j.jallcom.2025.184124","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184124","url":null,"abstract":"Wire Arc Additive Manufacturing (WAAM) has emerged as a promising technique for fabricating large-scale aluminum alloy components, owing to its high deposition efficiency, low material waste, and accessible equipment requirements. It shows particular potential for structural applications in the aerospace and transportation sectors. However, porosity formed during multi-layer deposition often induces pronounced mechanical anisotropy, undermining structural integrity. This study systematically evaluates the microstructural features, pore formation, and mechanical performance of two representative WAAM-deposited aluminum alloys: Al-5356 and Al-Mg-Sc-Zr. The Al-Mg-Sc-Zr alloy exhibited refined grains (~15 μm) and strengthening from Al₃(Sc,Zr,Ti) precipitates, but also showed severe interlayer porosity (~1%), which caused a marked reduction in vertical strength and ductility (UTS dropped by ~30%, elongation by ~75%). In contrast, the Al-5356 alloy displayed coarse grains (~95 μm), very low porosity (~0.02%), and relatively consistent properties in both orientations. These results demonstrate that, although microalloying enhances intrinsic strength, the dominant factor governing anisotropy in WAAM-fabricated aluminum alloys is the spatial distribution of interlayer porosity. The findings highlight the critical importance of optimizing interlayer fusion and gas management strategies to fully exploit WAAM for high-performance aluminum applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"44 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"BixOyBrz-based composites for photocatalytic degradation of antibiotics: A review of synthesis method, modification, and factors affecting photodegradation","authors":"Kai Wang, Yuyu Ren, Fan Yang","doi":"10.1016/j.jallcom.2025.184197","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184197","url":null,"abstract":"The widespread use of antibiotics in industrial, agricultural, and medical practices has inevitably led to their presence in surface water, groundwater, and marine environments. Although typically found at low concentrations, antibiotics persist in these aquatic systems and resist natural degradation, posing significant ecological risks by potentially facilitating the proliferation of drug-resistant genes and bacteria. Photocatalytic technology offers a promising green approach for addressing this issue, effectively breaking down antibiotic molecules into low-toxicity or non-toxic small-molecule compounds. Among various photocatalysts, materials based on BiOBr or bismuth-rich bismuth oxybromides (Bi<ce:inf loc=\"post\"><ce:italic>x</ce:italic></ce:inf>O<ce:inf loc=\"post\"><ce:italic>y</ce:italic></ce:inf>Br<ce:inf loc=\"post\"><ce:italic>z</ce:italic></ce:inf>) have attracted increasing attention due to their suitable bandgap structures and abundant active sites. This paper provides a comprehensive review of the synthesis methods for Bi<ce:inf loc=\"post\"><ce:italic>x</ce:italic></ce:inf>O<ce:inf loc=\"post\"><ce:italic>y</ce:italic></ce:inf>Br<ce:inf loc=\"post\"><ce:italic>z</ce:italic></ce:inf>-based photocatalytic materials and discusses strategies for enhancing their catalytic performance. It also examines the key factors influencing the degradation efficiency of antibiotics by Bi<ce:inf loc=\"post\"><ce:italic>x</ce:italic></ce:inf>O<ce:inf loc=\"post\"><ce:italic>y</ce:italic></ce:inf>Br<ce:inf loc=\"post\"><ce:italic>z</ce:italic></ce:inf> composites. Furthermore, the review addresses current challenges related to the practical application of these photocatalysts and suggests potential directions for future research. This study aims to offer valuable insights for the development and optimization of Bi<ce:inf loc=\"post\"><ce:italic>x</ce:italic></ce:inf>O<ce:inf loc=\"post\"><ce:italic>y</ce:italic></ce:inf>Br<ce:inf loc=\"post\"><ce:italic>z</ce:italic></ce:inf>-based photocatalysts for removing antibiotics from wastewater, thereby contributing to the mitigation of growing global health risks.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"6 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Physical and Optical Properties of ZnF2-Doped B2O3–Li2O–SrO Oxyfluoride Glasses Exhibiting UV-B Luminescence","authors":"K S Varini, Lisha Mascarenhas, Niveditha Kamaraj, C S Pavan Kumar, N Sivasankara Reddy, Ganesh Shridar Hegde, B P Siddalingeshwara, G. Ranjith Kumar","doi":"10.1016/j.jallcom.2025.184162","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.184162","url":null,"abstract":"ZnF₂-doped B₂O₃–Li₂O–SrO glasses with compositions 50B₂O₃–25Li₂O–(25–x)SrO–xZnF₂ (x = 0, 5, 10, 15 and 25<!-- --> <!-- -->mol%) were synthesized using the melt-quench method. X-ray diffraction confirmed their amorphous nature. Increasing ZnF₂ content led to a decrease in density (ρ) and an increase in molar volume (V_m), consistent with network expansion and the formation of non-bridging oxygens (NBOs). Structural changes were further evidenced by reduced oxygen packing density, higher B–B separation, and FTIR features showing BO₄ to BO₃ interconversion along with B–F and Zn–O–Zn linkages. Optical studies revealed a decrease in band gap (2.75-2.66<!-- --> <!-- -->eV) and an increase in Urbach energy (0.716-0.810<!-- --> <!-- -->eV), indicating enhanced disorder. Simultaneously, parameters such as refractive index (n), molar refractivity (R_m), molar polarizability (α_m), oxide ion polarizability (<span><math><msub is=\"true\"><mrow is=\"true\"><mi is=\"true\">α</mi></mrow><mrow is=\"true\"><msup is=\"true\"><mrow is=\"true\"><mi is=\"true\">O</mi></mrow><mrow is=\"true\"><mn is=\"true\">2</mn><mo is=\"true\">−</mo></mrow></msup></mrow></msub><mo is=\"true\" stretchy=\"false\">)</mo></math></span>, optical basicity (ʌ), and optical dielectric constant (ε_opt) all increased due to greater electronic polarizability from NBOs. The photoluminescence spectra showed strong UV-B emission, which increased with ZnF₂ content up to an optimum level due to NBOs formation and Zn–O/Zn–F linkages. At higher concentrations, emission intensity decreased because of concentration quenching and non-radiative losses. Despite this, the glasses maintained efficient UV-B luminescence, confirming their potential for future biomedical and spectroscopic application.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"9 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}