Materials Research Bulletin最新文献_第3页

Radiation-resilient LBNBS glasses for dual applications in actinide immobilization and optical radiation sensing 辐射弹性LBNBS玻璃在锕系固定和光辐射传感双重应用

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-22 DOI: 10.1016/j.materresbull.2026.114022

Nimai Pathak , Prithwish Sinharoy , Vidya Thorat , Swayam Kesari , Dhanadeep Dutta , Dayamoy Banerjee

{"title":"Radiation-resilient LBNBS glasses for dual applications in actinide immobilization and optical radiation sensing","authors":"Nimai Pathak , Prithwish Sinharoy , Vidya Thorat , Swayam Kesari , Dhanadeep Dutta , Dayamoy Banerjee","doi":"10.1016/j.materresbull.2026.114022","DOIUrl":"10.1016/j.materresbull.2026.114022","url":null,"abstract":"<div><div>The immobilization of trivalent minor actinides (Am³⁺, Cm³⁺) is critical for nuclear waste management due to their long half-lives and radiotoxicity. LBNBS glasses were synthesized by melt quenching, with Eu³⁺ used as a spectroscopic surrogate. Structural, optical, chemical, and radiation responses were studied using XRD, SEM–EDX, photoluminescence (PL), gamma irradiation (5–1000 kGy), ASTM C1285-94 leaching tests, and positron annihilation lifetime spectroscopy (PALS). The glasses showed amorphous homogeneity and uniform dopant distribution. Leaching enhanced PL intensity due to reduced surface quenching, while irradiation caused defect-related PL quenching without altering spectral profiles. PALS revealed intrinsic free-volume defects in unirradiated glass (τ₁ = 0.297 ns, τ₂ = 0.765 ns), which decreased after irradiation up to 1000 kGy (τ₁ ≈ 0.247–0.250 ns; τ₂ ≈ 0.694–0.697 ns), indicating radiation-induced densification. The stable Eu³⁺ environment and dose-dependent CIE shift (0.56618, 0.42029 to 0.49101, 0.48826) confirm suitability for actinide immobilization and radiation sensing.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 114022"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079143","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}

引用次数: 0

Construction of CeO2/MIL-100(Fe) heterojunction with multi-oxidation-reduction cycle system for photo-Fenton degradation of tetracycline CeO2/MIL-100（Fe）异质结光- fenton降解四环素的多氧化-还原循环体系构建

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-23 DOI: 10.1016/j.materresbull.2026.114026

Qingmin Luo , Qian Wang , Xinyu Yang , Jing Yang , Caiyun Jiang , Shihai Cui

{"title":"Construction of CeO2/MIL-100(Fe) heterojunction with multi-oxidation-reduction cycle system for photo-Fenton degradation of tetracycline","authors":"Qingmin Luo , Qian Wang , Xinyu Yang , Jing Yang , Caiyun Jiang , Shihai Cui","doi":"10.1016/j.materresbull.2026.114026","DOIUrl":"10.1016/j.materresbull.2026.114026","url":null,"abstract":"<div><div>In this study, CeO<sub>2</sub>/MIL-100(Fe) heterojunction was synthesized for photo-Fenton degradation of tetracycline. The morphology, crystallinity, elemental composition, surface structure and optical properties of the materials were characterized. The N<sub>2</sub> adsorption-desorption isotherm indicated that CeO<sub>2</sub>/MIL-100(Fe) had a large specific surface area of 368.96 m<sup>2</sup>·g<sup>-1</sup> and the pore volume of 2.834 cm<sup>3</sup>·g<sup>-1</sup>. Photo-Fenton degradation experiments showed that about 93.0% of the tetracycline was efficiently removed after 40 min illumination. After 5 cycles of the experiment, a high degradation efficiency of 87.0% was still achieved. Free radical trapping experiments revealed ·OH as the primary active species, while h<sup>+</sup> and ⋅O<sub>2</sub><sup>-</sup> also participated in the degradation process. In addition, the susceptibility sites of tetracycline molecules were analyzed by theoretical calculation, which was supported by the intermediates tested in experiments. This work combined the photo and Fenton catalysis, constructed multi-oxidation-reduction cycle system including Ce<sup>4+</sup>/Ce<sup>3+</sup>, Fe<sup>3+</sup>/Fe<sup>2+</sup> and H<sub>2</sub>O<sub>2</sub>/·OH, and achieved efficient degradation of tetracycline.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 114026"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079148","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}

引用次数: 0

Enhance piezoelectric response of flexible PVDF/BaTiO3/MoS2 nanocomposite for human physiological sensing, energy conversion and wireless control 增强柔性PVDF/BaTiO3/MoS2纳米复合材料的压电响应，用于人体生理传感、能量转换和无线控制

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-23 DOI: 10.1016/j.materresbull.2026.114025

Pawan Arunkumar Upadhye , Jhulan Kumar , Harsh Bansal , Vanish Kumar , Sudip Mondal , Junghwan Oh , Mrinmoy Misra

{"title":"Enhance piezoelectric response of flexible PVDF/BaTiO3/MoS2 nanocomposite for human physiological sensing, energy conversion and wireless control","authors":"Pawan Arunkumar Upadhye , Jhulan Kumar , Harsh Bansal , Vanish Kumar , Sudip Mondal , Junghwan Oh , Mrinmoy Misra","doi":"10.1016/j.materresbull.2026.114025","DOIUrl":"10.1016/j.materresbull.2026.114025","url":null,"abstract":"<div><div>A flexible novel morphology of self-assembled PVDF/BaTiO<sub>3</sub>/MoS<sub>2</sub> nanocomposite is prepared using the solution casting approach. The BaTiO<sub>3</sub> nanoparticle and MoS<sub>2</sub> sheet fillers significantly enhanced the electroactive β phases of the PVDF. The developed flexible sensor can effectively detect bending angle, imparting response, and human physiological signals such as coughing, touch, elbow bending, and footsteps. The composite showed significantly higher energy harvesting efficiency as compared to PVDF from different sources such as mechanical vibration and human walking. The energy harvesting efficiency of the composite was considerably higher than reported in the literature. The self-powered PVDF/BaTiO<sub>3</sub>/MoS<sub>2</sub> nanocomposite-based sensor was placed on a person's wrist to sense hand gestures. The signal generated from the hand gesture is processed using algorithmic techniques and transmitted to a remote receiver to wirelessly control a car's motion. The proposed device shows potential applications in remote robotic operation, energy harvesting and healthcare.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 114025"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170058","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}

引用次数: 0

Advanced protocols for enhancing magnetocaloric effect and relative cooling power: Phenomena important for cooling technology 提高磁热效应和相对冷却功率的先进方案：冷却技术的重要现象

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-24 DOI: 10.1016/j.materresbull.2026.114021

Amanulla Karikar , Koustav Pal , Kalipada Das , Kalpataru Pradhan , Biswarup Satpati , I. Das

{"title":"Advanced protocols for enhancing magnetocaloric effect and relative cooling power: Phenomena important for cooling technology","authors":"Amanulla Karikar , Koustav Pal , Kalipada Das , Kalpataru Pradhan , Biswarup Satpati , I. Das","doi":"10.1016/j.materresbull.2026.114021","DOIUrl":"10.1016/j.materresbull.2026.114021","url":null,"abstract":"<div><div>In recent years, cooling has become essential for food preservation, modern comfort, and various cryogen-based cutting-edge technologies. Traditional cooling systems primarily rely on the Joule-Thomson effect, which is inefficient to meet the rapidly growing global demand and often utilizes environmentally harmful gases. In this scenario the magnetocaloric effect has emerged as a promising alternative in both of these respects; however, its application is limited by the high cost and limited stability of the working magnetic materials. Oxide materials, despite being low-cost and air-stable, typically exhibit low relative cooling power as documented in the literature and derived through conventional methods. We have introduced a novel measurement protocol that significantly enhances the magnetocaloric effect and relative cooling power, offering a new perspective on the numerous magnetic materials already reported, as well as future materials. In Sm<sub>0.50</sub>Ca<sub>0.15</sub>Sr<sub>0.35</sub>MnO<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>, the proposed measurement protocol yielding a <span><math><mo>∼</mo></math></span>16-fold enhancement in the magnetocaloric effect and an <span><math><mo>∼</mo></math></span>440% increase in the relative cooling power. Our findings represent a significant advancement for magnetic refrigeration technology.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 114021"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079151","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}

引用次数: 0

The impact of low-concentration lanthanum oxide doping on borate glass characteristics: a comprehensive examination of radiation shielding, mechanical, and optical performance 低浓度氧化镧掺杂对硼酸盐玻璃特性的影响：辐射屏蔽，机械和光学性能的综合检查

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-09 DOI: 10.1016/j.materresbull.2026.114000

Hasan Eskalen , Mustafa Kavgacı , Hakan Yaykaşlı , Ömer Söğüt , Mustafa Recep Kaçal

{"title":"The impact of low-concentration lanthanum oxide doping on borate glass characteristics: a comprehensive examination of radiation shielding, mechanical, and optical performance","authors":"Hasan Eskalen , Mustafa Kavgacı , Hakan Yaykaşlı , Ömer Söğüt , Mustafa Recep Kaçal","doi":"10.1016/j.materresbull.2026.114000","DOIUrl":"10.1016/j.materresbull.2026.114000","url":null,"abstract":"<div><div>This research investigates the production and characterisation of lead-free borate glasses infused with lanthanum oxide (La<sub>2</sub>O<sub>3</sub>) for radiation shielding purposes. The glasses were fabricated by the melt-quenching technique, and their optical, thermal, mechanical, and radiation shielding characteristics were methodically examined. The addition of La<sub>2</sub>O<sub>3</sub> markedly improved the density and thermal stability of the glasses. Quantitative examination indicated a significant rise in glass density with increasing La<sub>2</sub>O<sub>3</sub> concentration, reaching 2.693 g/cm<sup>3</sup> for the sample containing 1.00 mol % La<sub>2</sub>O<sub>3</sub>. The thermal stability improved, with the glass transition temperature (Tg) increasing to 460°C at the maximum La<sub>2</sub>O<sub>3</sub> concentration. Mechanical testing showed an increase in microhardness, reaching a maximum value of 4.65 GPa at 0.25 mol % La<sub>2</sub>O<sub>3</sub>. The findings indicate that La<sub>2</sub>O<sub>3</sub>-doped borate glasses have advantageous characteristics for sophisticated radiation shielding materials, including improved optical clarity, thermal stability, and mechanical strength.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 114000"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981652","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}

引用次数: 0

Unlocking the opportunities of POM@MOF composites as next catalyst for energy and environmental remediation applications 打开POM@MOF复合材料作为能源和环境修复应用的下一个催化剂的机会

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-06 DOI: 10.1016/j.materresbull.2026.113993

Abdurrashid Haruna , Zakariyya Uba Zango , Muhammad Abubakar Lawal , Gazali Tanimu , Zaharadden N. Garba , Thompson Izuagie , Suleiman Gani Musa , Zulkfli Merican Aljunid Merican , Haruna Adamu , Ying Zheng

{"title":"Unlocking the opportunities of POM@MOF composites as next catalyst for energy and environmental remediation applications","authors":"Abdurrashid Haruna , Zakariyya Uba Zango , Muhammad Abubakar Lawal , Gazali Tanimu , Zaharadden N. Garba , Thompson Izuagie , Suleiman Gani Musa , Zulkfli Merican Aljunid Merican , Haruna Adamu , Ying Zheng","doi":"10.1016/j.materresbull.2026.113993","DOIUrl":"10.1016/j.materresbull.2026.113993","url":null,"abstract":"<div><div>The rapid growth of the global population has led to increase in energy demand, resulting in serious environmental pollution and greenhouse gas emissions. Achieving energy security and environmental sustainability therefore represents one of the most urgent scientific and technological challenges of the 21st century. In response, metal-organic frameworks (MOFs) have emerged as a versatile class of functional materials, distinguished by their high surface area, tunable porosity, and structural diversity. Recent research has increasingly focused on the integration of polyoxometalates (POMs) within MOF architectures, giving rise to POM@MOF composites that exhibit synergistic physicochemical properties extending well beyond those of the individual components. These materials have demonstrated outstanding catalytic performance and align strongly with circular-economy principles, enabling efficient utilization of resources across a wide range of energy and environmental applications. This review provides a comprehensive and critical evaluation of recent advances in POM@MOF composites, with particular emphasis on their catalytic roles in CO<sub>2</sub> reduction, wastewater treatment, fuel desulfurization, hydrogen evolution reactions, and energy storage technologies. Key reaction mechanisms are systematically analyzed to elucidate structure–activity relationships and performance-limiting factors. Finally, current challenges and future research directions are outlined to guide the rational design of next-generation POM@MOF composites that support sustainable development and contribute to the achievement of the Sustainable Development Goals (SDGs).</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 113993"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145980880","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}

引用次数: 0

Efficient removal of anionic Congo red by hickory-chip/peanut-shell biochar and Mg-Al hydrotalcite composites fabricated via modified co-precipitation-hydrothermal and buried carbon pyrolysis approach 改性共沉淀-水热-埋碳热解制备山核桃屑/花生壳生物炭和镁铝水滑石复合材料对阴离子刚果红的高效脱除

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2025-12-18 DOI: 10.1016/j.materresbull.2025.113963

Xiaodong Yang , Jin Tong , Xuefei Yang , Xueqin Shao , Tianyang Luo , Shengjun Zhao , Enshuo Zhang , Bowen Jiang , Lili Wang , Ye Han , Fanming Zeng , Andrew R. Zimmerman , Bin Gao

{"title":"Efficient removal of anionic Congo red by hickory-chip/peanut-shell biochar and Mg-Al hydrotalcite composites fabricated via modified co-precipitation-hydrothermal and buried carbon pyrolysis approach","authors":"Xiaodong Yang , Jin Tong , Xuefei Yang , Xueqin Shao , Tianyang Luo , Shengjun Zhao , Enshuo Zhang , Bowen Jiang , Lili Wang , Ye Han , Fanming Zeng , Andrew R. Zimmerman , Bin Gao","doi":"10.1016/j.materresbull.2025.113963","DOIUrl":"10.1016/j.materresbull.2025.113963","url":null,"abstract":"<div><div>Recently, sustainable biochar composites created from waste biomass and other benign materials have attracted increasing attention for their promising potential in the removal of organic contaminants from environmental media. A facile approach combining coprecipitation-hydrothermal synthesis with buried carbon pyrolysis was used to produce composites composed of Mg-Al hydrotalcite and hickory-chip/peanut-shell biochar which was tested for its ability to remove anionic Congo red (CR) from aqueous solution. The composites exhibited high specific surface area, high micro-porosity, and abundant oxygen/carbon-containing functional groups. The sorbents derived from hickory and peanut shell exhibited maximum experimental CR adsorption capacities of 1045.6 and 1195.0 mg g<sup>-1</sup>, respectively (20 times of pristine biochar) with removal rates of 86.1% and 98.3%, respectively, superior to those of hydrotalcite and many other advanced CR sorbents. The work highlights the potential of hydrotalcite/biochar composites as a promising adsorbent for water treatment and environmental applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 113963"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145980879","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}

引用次数: 0

Radiation attenuation and mechanical reinforcement of Eu/Gd co-doped zinc borotellurite glass system Eu/Gd共掺锌硼碲酸盐玻璃体系的辐射衰减与机械增强

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-18 DOI: 10.1016/j.materresbull.2026.114019

Aliyu Sani , Mohd Hafiz Mohd Zaid , Khamirul Amin Matori , Muhammad Khalis Abdul Karim , Loh Zhi Wei Loh

{"title":"Radiation attenuation and mechanical reinforcement of Eu/Gd co-doped zinc borotellurite glass system","authors":"Aliyu Sani , Mohd Hafiz Mohd Zaid , Khamirul Amin Matori , Muhammad Khalis Abdul Karim , Loh Zhi Wei Loh","doi":"10.1016/j.materresbull.2026.114019","DOIUrl":"10.1016/j.materresbull.2026.114019","url":null,"abstract":"<div><div>This study examines the mechanical and radiation-shielding characteristics of Eu<sub>2</sub>O<sub>3</sub>:Gd<sub>2</sub>O<sub>3</sub> co-doped zinc Boro-tellurite glass produced by the standard melt-quenching method. XRD and FTIR investigations established an amorphous matrix exhibiting an incremental structural transformation of non-bridging oxygens (NBOs). The density and molar volume increased due to the elevated atomic number of rare-earth oxides, resulting in enhanced material strength attributed to the rise in Young's and shear modulus from (81.15 to 90.11 GPa), and (30.06 to 39.07 GPa) respectively, while Poisson's ratio reduced from (0.35 to 0.15). The direct and indirect bandgaps decreased from (3.42 to 3.20 eV) and from (3.11 to 3.03 eV), respectively, and Urbach energy varies from (2.83 to 2.92 eV), while the refractive index ranges from (2.08 to 2.11), ensuring the structural integrity of the produced glass. The Phy-X/PSD results demonstrated an improved attenuation profile, Mass attenuation coefficient (MAC) increasing from 0.188 to 0.224 cm²/g, indicating transitions coming from photoelectric effect, Compton scattering and pair production. Additionally, low-energy attenuation was found to be superior, as shown by the reduction of the half-value layer (HVL) from (0.90 to 0.71 cm), and the effective atomic number (Z<sub>eff</sub>) popping from approximately (23 to 48). Our findings concurrently characterized the EG<sub>5</sub> formulation as an optimized, lead-free option, validating Eu<sup>3+</sup>/Gd<sup>3+</sup> co-doping as an outstanding method that yields mechanically resilient, transparent, and highly effective shielding applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 114019"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024533","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}

引用次数: 0

Emerging trends in rare-earth doped luminescent nanophosphors: Synthesis, advances and applications 稀土掺杂发光纳米荧光粉的新趋势：合成、进展和应用

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-07 DOI: 10.1016/j.materresbull.2026.113997

Himani Thakur , Neeraj Kumar Mishra , Rajesh Kumar Singh , Bheeshma Pratap Singh , Rajesh Kumar , Arvind K. Gathania

{"title":"Emerging trends in rare-earth doped luminescent nanophosphors: Synthesis, advances and applications","authors":"Himani Thakur , Neeraj Kumar Mishra , Rajesh Kumar Singh , Bheeshma Pratap Singh , Rajesh Kumar , Arvind K. Gathania","doi":"10.1016/j.materresbull.2026.113997","DOIUrl":"10.1016/j.materresbull.2026.113997","url":null,"abstract":"<div><div>The abundance and diverse photophysical properties of near-infrared (NIR) and ultraviolet (UV) light-activated rare-earth (RE) doped nanophosphors (NPs) make them highly significant. NIR/UV-active lanthanide (Ln) doped upconversion nanophosphors (UCNPs) and downconversion nanophosphors (DCNPs) are synthesised using controlled protocols that optimise their shape, size, and surface modification, which enhances their properties. These materials can be utilised in various photonic devices, as well as for understanding biological processes related to diagnosis and therapy. UCNPs have unique advantages, including deep tissue penetration (∼cm), low photobleaching, photostability, reduced toxicity, sharp emission spectral lines, and a long anti-Stokes shift. This review provides a comprehensive overview of RE-activated NPs. We discuss the fundamentals of these materials, along with the mechanisms that explain the downconversion and upconversion processes. Additionally, we survey the synthesis strategies for NPs, surface functionalization processes, and their unique optical properties. These nanomaterials have demonstrated significant applications in specific areas, including bioimaging, drug delivery, and sensing. We also review recent advancements and studies conducted on animal models within these fields. Finally, we explore the applications of NPs in other areas, summarising our findings and discussing future perspectives and challenges.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 113997"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024571","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}

引用次数: 0

Photoluminescence and scintillation properties of pure and Nd-doped Sr2La2/3V2O8 single crystals 纯和掺nd的Sr2La2/3V2O8单晶的光致发光和闪烁特性

IF 5.7 3区材料科学

Materials Research Bulletin Pub Date : 2026-05-01 Epub Date: 2026-01-08 DOI: 10.1016/j.materresbull.2026.113999

Yusuke Endo, Kensei Ichiba, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida

{"title":"Photoluminescence and scintillation properties of pure and Nd-doped Sr2La2/3V2O8 single crystals","authors":"Yusuke Endo, Kensei Ichiba, Daisuke Nakauchi, Takumi Kato, Noriaki Kawaguchi, Takayuki Yanagida","doi":"10.1016/j.materresbull.2026.113999","DOIUrl":"10.1016/j.materresbull.2026.113999","url":null,"abstract":"<div><div>Near-infrared-emitting scintillators have garnered considerable attention for their potential applications in dose-field monitoring and biological imaging in recent years. Vanadate-type materials possess a relatively small band gap (<em>E</em><sub>g</sub>, e.g., ∼3.5 eV for YVO<sub>4</sub>) in scintillator materials; thus, they are expected to show high scintillation efficiency. In this paper, scintillation properties of Sr<sub>2</sub>(La<sub>1-</sub><em><sub>x</sub></em>Nd<em><sub>x</sub></em>)<sub>2/3</sub>V<sub>2</sub>O<sub>8</sub> single crystals (SC) are evaluated. The <em>x</em> = 0% sample shows scintillation due to charge transfer from O<sup>2-</sup> to V<sup>5+</sup> inside [VO<sub>4</sub>]<sup>3-</sup> and detects the dose rate of 4.5 Gy/h. The <em>x</em> ≥ 1% samples exhibit scintillation due to the 4f–4f transitions of Nd<sup>3+</sup>, successfully detecting dose rates of 0.45 Gy/h (<em>x</em> = 1% sample) and 0.045 Gy/h (<em>x</em> = 5% and 10% samples). Based on these results, the scintillation performance of Sr<sub>2</sub>(La<sub>1-</sub><em><sub>x</sub></em>Nd<em><sub>x</sub></em>)<sub>2/3</sub>V<sub>2</sub>O<sub>8</sub> SC outperforms that of La<sub>1-</sub><em><sub>x</sub></em>Nd<em><sub>x</sub></em>VO<sub>4</sub> SC.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"198 ","pages":"Article 113999"},"PeriodicalIF":5.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145948006","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}

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