Materials Research Bulletin最新文献

{"title":"Structural, magnetic, dielectric and electrical transport properties of CaCu3Ti2FeVO12 quadruple perovskite oxides synthesized at ambient pressure","authors":"Jie Ding ,&nbsp;Xinhua Zhu","doi":"10.1016/j.materresbull.2025.113508","DOIUrl":"10.1016/j.materresbull.2025.113508","url":null,"abstract":"<div><div>Quadruple perovskite oxides (QPOs) of CaCu₃Ti₂FeVO₁₂ (CCTFVO) were synthesized at ambient pressure, and their structural, dielectric, magnetic and electrical transport properties were investigated. The CCTFVO compounds crystallize in a cubic crystal structure with space group of <em>Im</em><span><math><mover><mn>3</mn><mo>¯</mo></mover></math></span> and lattice parameter of <em>a</em> = 7.3903(8) Å. XPS spectra verify the coexistence of Ti³⁺/Ti⁴⁺ and Fe²⁺/Fe³⁺ pairs in this compound. The CCTFVO ceramics displayed pronounced frequency-dependent dielectric behaviour, and a relaxor-like dielectric response appeared between 173 K and 450 K. That was ascribed to the movement of double-ionized oxygen vacancies with thermal activation energy of 1.10 eV. At 100 kHz and 300 K, the CCTFVO ceramics had relative dielectric constant (<em>ε</em>_r) of ∼ 138 and dielectric loss (tan<em>δ</em>) of 0.56. A diffuse phase transition undergoes near 330 K under 1 kHz. The CCTFVO QPOs exhibit ferrimagnetism at 2 K with saturated magnetization of 1.11 <em>μ</em>_B/f.u. and magnetic <em>T</em>_C = 623 K. The Curie-Weiss fitting of the inverse magnetic susceptibility (<em>χ</em>^-1) versus temperature curve, yielded the positive <em>θ</em>_P value of 767 K, confirming the predominant ferromagnetic interactions in the CCTFVO powders. From the Curie constant (<em>C</em> = 0.199 emu⋅K⋅mol^-1), the effective magnetic moment was calculated as <em>μ</em>_eff = 1.22 <em>μ</em>_B/f.u., which was smaller than the theoretical value of 6.60 <em>μ</em>_B/f.u. Below ∼ 166 K the zero-field cooling (ZFC) and field-cooling (FC) curves became bifurcated each other, and the ZFC curve decreased further upon cooling. This phenomenon is attributed to the presence of short-range spin clusters in the ferromagnetic background. It can be ascribed to the partial disorder of B-site ions, leading to local random potentials and consequently resulting in local competition between the ferromagnetic state driven by double-exchange interactions and antiferromagnetic state driven by superexchange interactions. The resistivity (<em>ρ</em>)-temperature (T) data confirm the semiconducting behaviour of the CCTFVO ceramics, which are fitted by Mott’s variable range hopping model, thermally activated semiconductor conductivity model, and small polaron hopping model, respectively.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113508"},"PeriodicalIF":5.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of Ni(OH)2/Ni3S2/NF composite electrode materials doped with rGO","authors":"Kang Wei ,&nbsp;Jun Li ,&nbsp;Xiao Sun ,&nbsp;Meng Shao ,&nbsp;Jianguo Tang ,&nbsp;Soowohn Lee","doi":"10.1016/j.materresbull.2025.113503","DOIUrl":"10.1016/j.materresbull.2025.113503","url":null,"abstract":"<div><div>rGO/Ni(OH)₂/Ni₃S₂ composite electrode materials were successfully synthesized on Ni foam (NF) by a two-step hydrothermal process and subsequent alkalization treatment. To investigate the influence of reaction time in the secondary hydrothermal process, three different hydrothermal times (4 h, 6 h, 8 h) were set. The results showed that the electrode had the highest specific capacitance of 2260 F·g⁻¹ at 1 A·g⁻¹ at the hydrothermal reaction time of 6 h, (4 h: 1807.8 F·g⁻¹, 8 h: 1358.3 F·g⁻¹). In addition, it exhibited prominent rating capability and cycling stability, with 41.7 % retention at 10 A·g⁻¹ and 137.9 % retention after 5000 cycles at 50 mV⋅<em>s</em>⁻¹. Finally, the assembled hybrid supercapacitor (HSC) with rGO/Ni(OH)₂/Ni₃S₂/NF (6 h) and active carbon displayed outstanding electrochemical performance. When the power density was 400.5 W⋅kg⁻¹, it showed the energy density (25.2 Wh⋅kg⁻¹), proving its potential as electrode materials for HSC devices.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113503"},"PeriodicalIF":5.3,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Full-color emissive bidirectional needle-like nano-tips of the hybrid of Tb/Eu-Metal organic frameworks @ inorganic halide perovskite for multifunctional applications","authors":"Santosh Kachhap ,&nbsp;Akhilesh Kumar Singh ,&nbsp;Sunil Kumar Singh","doi":"10.1016/j.materresbull.2025.113505","DOIUrl":"10.1016/j.materresbull.2025.113505","url":null,"abstract":"<div><div>A multifunctional metal-organic framework (Tb/Eu-MOF) interfaced with an CsPbCl_1.5Br_1.5 is developed. The self-assembled Tb/Eu-MOF has a bi-directional needle-like morphology. The successful formation of the CsPbCl_1.5Br_1.5 inside the porous Tb/Eu-MOF is evidenced by the characteristic absorption edge and characteristic PL emission of CsPbCl_1.5Br_1.5. PL studies show the unilateral energy transfer from Tb³⁺ to Eu³⁺. The CsPbCl_1.5Br_1.5 does not show any optical interaction with the other two emitting centers (Eu³⁺ and Tb³⁺) and emits only by its characteristic excitation. The cool white light emission is achieved by CsPbCl_1.5Br_1.5@ Tb/Eu-MOF in PMMA matrix-coated UV-LED chip. The CIE coordinate, CCT, CRI, Vis., and color purity are calculated. Further, the excitation wavelength-dependent emission spectrum spans from blue to yellowish-red region opens the potential of the material for anti-counterfeiting application. The letter \"W\" encrypted on four different substrates exhibit momentous color change under different excitation wavelengths and show excellent stability over time in ambient conditions.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113505"},"PeriodicalIF":5.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bi vacancy-induced Bi2O2S nanosheets for remarkably boosting piezocatalytic degradation of dyes and antibiotic","authors":"Jing Wang ,&nbsp;Jing Xie ,&nbsp;Zhenjiang Lu,&nbsp;Suixin Yin,&nbsp;Aize Hao,&nbsp;Jindou Hu,&nbsp;Yali Cao","doi":"10.1016/j.materresbull.2025.113483","DOIUrl":"10.1016/j.materresbull.2025.113483","url":null,"abstract":"<div><div>Defect engineering is an efficient strategy to address piezoelectric-catalyzed degradation, but metal cation defects introduced in crystals have rarely been reported, owing to the formation of cationic defects requiring higher energy than that of anionic defects. Herein, Bi vacancy-induced Bi₂O₂S (BOS) nanosheets were synthesized for the piezoelectric-catalyzed degradation of organic dyes and antibiotic, utilizing a low-temperature solid-state reduction method with the help of NaBH₄ for the first time. Astonishingly, Bi₂O₂S (BOS-4) with a large number of Bi vacancies exhibited an impressive 95.69 % degradation rate for rhodamine B (RhB) under ultrasound, approximately three times higher than that achieved by BOS. Additionally, BOS-4 also effectively degrades other dyes as well. This phenomenon is mainly ascribed to reduced band gap and facilitated the generation of charges by the introduced Bi vacancies, which can attract negative charges move in a definite direction and promote effective charge separation, thereby improving piezocatalytic efficiency.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113483"},"PeriodicalIF":5.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A perspective of GaAs//Si tandem photovoltaic cell: Architecture, fabrication, and performance","authors":"Pranoy Abhay Makode,&nbsp;Sakti Prasanna Muduli,&nbsp;Paresh Kale","doi":"10.1016/j.materresbull.2025.113504","DOIUrl":"10.1016/j.materresbull.2025.113504","url":null,"abstract":"<div><div>Tandem solar cells utilize multiple semiconductor layers with complementary bandgaps to capture a broader solar spectrum, overcoming the efficiency limits of single-junction cells. The article reviews the architecture, fabrication, and performance of GaAs//Si tandem solar cells, emphasizing material developments, optical coupling, and electrical connections in tandem configurations. The fabrication section elaborates on active layer deposition, doping techniques, and interconnecting layers. Deposition techniques like chemical vapor deposition and molecular beam epitaxy are preferred for GaAs deposition to reduce the lattice mismatch between GaAs and Si. Zn and Si are the cost-effective doping elements for GaAs by metalorganic chemical vapor deposition and ion implantation. AlGaP, InGaP, and ZnO are the typical window layers, acting as front passivation for the GaAs top cell. The graded composition of III-V compounds acts as the buffer layer to connect the GaAs top cell to the Si bottom cell in two terminal monolithic configurations.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113504"},"PeriodicalIF":5.3,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amine-functionalized sulfur quantum dots (NH2-SQDs) for detection of tetracycline in food samples","authors":"Jothi Vinoth Kumar ,&nbsp;Jong-Whan Rhim","doi":"10.1016/j.materresbull.2025.113506","DOIUrl":"10.1016/j.materresbull.2025.113506","url":null,"abstract":"<div><div>Amine-functionalized sulfur quantum dots (NH₂-SQDs) are introduced as a novel and highly efficient fluorescent probe for detecting tetracycline (TC) in food and environmental samples. Unlike traditional carbon quantum dots, NH₂-SQDs exhibit excellent photoluminescence stability, a high quantum yield of 59.5 %, and enhanced selectivity. Synthesized through an ethylenediamine-assisted hydrothermal method, these NH₂-SQDs attain an ultra-low detection limit of 0.003 μmol/L by utilizing fluorescence quenching mechanisms, including hydrogen bonding, electrostatic interaction, and the inner filter effect. This method surpasses conventional fluorescence-based tetracycline sensors by providing greater sensitivity, strong anti-interference capability, and a quick response time. Validation with real samples, such as milk, honey, and water, showed high recovery rates ranging from 94.7 % to 100.5 % with minimal standard deviation, reinforcing the reliability of the results. These findings suggest that NH₂-SQDs can serve as a cost-effective and robust alternative for real-time monitoring of antibiotic residues, thereby improving food safety and environmental outcomes protection.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113506"},"PeriodicalIF":5.3,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gd3+-doped lithium barium borophosphate glasses: structural, optical and thermoluminescence glow curve investigation utilizing \"R-programming: tgcd\" for dosimetry applications","authors":"Harjeet Kaur ,&nbsp;Navjeet Kaur ,&nbsp;Supreet Pal Singh","doi":"10.1016/j.materresbull.2025.113499","DOIUrl":"10.1016/j.materresbull.2025.113499","url":null,"abstract":"<div><div>Gd³⁺-doped lithium barium borophosphate glasses were synthesized to explore their feasibility for monitoring radiation doses using thermoluminescence technique. X-ray diffraction exhibited the amorphous glassy state and Fourier transform infrared spectra revealed the dual contribution of borate and phosphate vibrational bands. Optical UV–Visible spectra displayed variation with the intercalated Gd³⁺ ions. Thermoluminescence glow curve evaluation using specialized ‘R-programming: tgcd’ software facilitated the determination of different kinetic parameters using Chen’s peak shape approach. Glow curve deconvolution indicate the presence of three overlapping TL peaks, attaining a minimum figure of merit value of 0.80 for LBPGd0.8 glass. The dose-response study for LBPGd0.8 showed a strong linearity and high sensitivity, with a correlation coefficient R² = 0.99611 for gamma dose ranging from 0.05-10 kGy. Moreover, LBPGd0.8 sample demonstrated great reusability and low fading, making it appropriate for quantitative assessment of absorbed doses in food irradiation, medical diagnosis, and personnel radiation exposure dosimetry.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113499"},"PeriodicalIF":5.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the efficiency and stability of Cs2AgBiBr6 solar cells via MAPbBr3 decoration","authors":"Ihtisham-ul-haq ,&nbsp;M.I. Khan ,&nbsp;Ming Li ,&nbsp;Ola A․Abu Ali ,&nbsp;Samy F. Mahmoud","doi":"10.1016/j.materresbull.2025.113501","DOIUrl":"10.1016/j.materresbull.2025.113501","url":null,"abstract":"<div><div>Eco-friendly perovskite materials like Cs₂AgBiBr₆ show promise for sustainable photovoltaics but suffer from efficiency limitations due to their wide bandgap (E_g) (1.94 eV). This study overcomes this challenge by incorporating 15 % MAPbBr₃ into Cs₂AgBiBr₆ via a sol-gel method. Structural analyses show that MAPbBr₃ integration induces compressive lattice strain, reduces dislocation density by 38 %, and increases crystallite size from 27 nm to 33 nm, enhancing crystallinity. Optical analysis reveal a narrowed bandgap (1.90 eV), higher dielectric constants, and refractive indices, improving light absorption and charge generation. Photovoltaic devices with MAPbBr₃-decorated Cs₂AgBiBr₆ achieve a 25 % efficiency (η) boost (5.05 % vs. 4.04 %) due to increased short-circuit current density (J_sc) (6.91 vs. 5.81 mA·cm⁻²) and suppressed recombination. Electrochemical impedance spectroscopy confirms improved charge transport, evidenced by a smaller Nyquist plot semicircle. This work demonstrates the potential of hybrid perovskite engineering to enhance solar cell performance while maintaining eco-friendliness.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113501"},"PeriodicalIF":5.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface functionalization of graphene oxide nano powder for enhancement of cement composites","authors":"Faris Matalkah ,&nbsp;Yazan H. Akkam ,&nbsp;Mohammaed A. Zaitoun","doi":"10.1016/j.materresbull.2025.113502","DOIUrl":"10.1016/j.materresbull.2025.113502","url":null,"abstract":"<div><div>Applying graphene oxide in cement composites is a new alternative to enhance mechanical properties and durability characteristics. However, graphene oxide in cement may disrupt the hydration process, causing increased gaps between layers, weakening the structure, and reducing its overall strength. This study aims at customizing the properties of graphene oxide nanomaterials using surface modification, to facilitate their advantageous use in concrete applications. The adopted approach relies on surface modification by introducing ethylenediaminetetraacetic acid (EDTA) functional groups to improve interaction with the components of cement hydrates and enhance dispersion characteristics. Tailored graphene oxide was synthesized by a two-step process including surface activation using a hydrochloric acid (HCl) solution, followed by the insertion of EDTA. Subsequently, refined graphene oxide was incorporated into the mortar samples at varying concentrations of 0, 0.02, 0.04, and 0.06 % relative to the cement weight. The Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Thermal Analysis (TGA/DTA), X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM) techniques were employed to gain a comprehensive understanding of the underlying mechanism. The results revealed that the incorporation of tailored graphene oxide with EDTA accelerates the cement hydration and improves the 7-day compressive strength by 20 % whereas the 28-day compressive strength was enhanced by 15 %.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"189 ","pages":"Article 113502"},"PeriodicalIF":5.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The two-dimensional materials in multidimensional applications","authors":"Kang Yang ,&nbsp;Boliang Li ,&nbsp;Zhenjie Li ,&nbsp;Yaqiong Wang ,&nbsp;Hongliang Chen ,&nbsp;Chengyu Wang ,&nbsp;Chao Wu ,&nbsp;Fangjie Guo ,&nbsp;Guoqing Zhang","doi":"10.1016/j.materresbull.2025.113490","DOIUrl":"10.1016/j.materresbull.2025.113490","url":null,"abstract":"<div><div>Recently, two-dimensional materials have attracted much attention due to their unique physicochemical properties and great biological potential. However, their applications in multidimensional fields such as energy storage, catalytic, tribology, adsorption, and biological applications remain scarcely reported. This may impose limitations on the development of renewable energy technologies and environmental protection, affecting the lifespan and efficiency of mechanical equipment, as well as impacting gas or water pollution treatment. Systematically, this review explores the typical structure, key properties, and multidimensional applications from graphene to transition metal dichalcogenides (TMDs), next to transition metal oxides (TMOs) and layered double hydroxides (LDHs), as well as graphitic carbon nitride (g-C₃N₄) and transition metal carbides/nitrides (MXene), finally to black phosphorus (BP). The energy storage capacity and catalytic performance of two-dimensional materials are introduced. After that, the main mechanisms of anti-friction, anti-wear and super- lubrication are summarized. Further, the adsorption capabilities and biological applications of two-dimensional materials are elaborated upon. Finally, this review examines the primary obstacles and future prospects for expanding multidimensional applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113490"},"PeriodicalIF":5.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}