Materials Today Physics最新文献

{"title":"Constructing 3D g-CNNS network in epoxy for enhanced thermal conductivity and breakdown strength for high high-voltage applications","authors":"Chenyu Su ,&nbsp;Guozheng Cao ,&nbsp;Xiaolong Chen ,&nbsp;Jiahuan Zhao ,&nbsp;Fanrong Kong ,&nbsp;Jing Liu ,&nbsp;Wenying Zhou","doi":"10.1016/j.mtphys.2025.101773","DOIUrl":"10.1016/j.mtphys.2025.101773","url":null,"abstract":"<div><div>Ultra-high integration density of power electronics leads to severely localized heat accumulation, critically threatening the safe operation and lifetime of devices. Traditional high thermal conductivity (TC) polymer composites always suffer from deteriorated breakdown strength (<em>E</em>_b). Nowadays, effective decoupling regulation and synchronous enhancement of TC and <em>E</em>_b still is a formidable challenge in polymer composites. To tackle this problematic issue, in this work, the graphitic carbon nitride nanosheet (g-CNNS) was prepared using a thermal oxidation method, and the g-CNNS/cellulose nanofiber (CNF)/epoxy (EP) nanocomposites were prepared via ice-templating and infiltration methods. It is found that the uniformly distributed three-dimensional CNF supporting g-CNNS skeletons were constructed in EP even at low filler loadings. The CNFs can physically crosslink with EP groups and form hydrogen bonds with g-CNNS, not only enhancing the interfacial interactions but also restricting the EP chain mobility, subsequently leading to concurrently improved TC and <em>E</em>_b in g-CNNS/CNF/EP. The 10.4 wt% g-CNNS/CNF/EP exhibits a concurrently high TC and <em>E</em>_b of 1.06 W/(m·K) and 34.7 kV/mm, along with a low permittivity (<em>ε</em>) and dielectric loss (tan<em>δ</em>) of 2.47 and 0.022 at 10³ Hz, respectively. This work reveals the underlying heat conduction and charge migration mechanisms, provides deep insight into the design and preparation of EP nanomaterials with simultaneously high TC and <em>E</em>_b coupled with low <em>ε</em> and tan<em>δ</em>, presenting appealing applications in power systems and high frequency microelectronic devices.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101773"},"PeriodicalIF":10.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144371053","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":"Solvent-engineered NiMo-based electrocatalysts for simultaneous hydrogen evolution and PET plastic waste upcycling","authors":"Yang Yang ,&nbsp;Mingkun Jiang ,&nbsp;Yajie Wang,&nbsp;Yanyang Zhang,&nbsp;Yizhi Wu,&nbsp;Dan Wu","doi":"10.1016/j.mtphys.2025.101775","DOIUrl":"10.1016/j.mtphys.2025.101775","url":null,"abstract":"<div><div>The massive accumulation of polyethylene terephthalate (PET) plastic waste urgently requires sustainable resource recovery strategies. Conventional PET recycling struggles with efficiently valorizing ethylene glycol (EG), a major depolymerization byproduct, limiting economic viability and material circularity. This study designs NiMo bifunctional electrocatalysts via a solvent-modulated strategy to synergistically drive hydrogen evolution (HER) and EG oxidation (EGOR) for integrated plastic upcycling and green H₂ production. By adjusting water/EG ratios, precise control over phase composition and nanostructure evolution is achieved, governed by solvent-polarity-dependent dynamic reconstruction. Water-rich synthesis yields NiMo-W₃₀ nanorods with optimized hydrogen adsorption kinetics, delivering exceptional HER activity (η₁₀ = 8.21 mV, Tafel slope = 36.5 mV dec⁻¹). Conversely, EG-dominated synthesis produces ultrathin NiMo-W_0.5EG_29.5 nanosheets, where in situ Mo leaching generates Ni³⁺-rich active sites, achieving 93 % selectivity for formic acid via selective EGOR. A membrane electrolyzer integrating these catalysts concurrently upgrades 10 g PET into 8.43 g terephthalic acid and 7.76 g potassium diformate while generating 94.86 mmol H₂ at 1.58 V, surpassing conventional water splitting by 208 mV. Techno-economic analysis confirms a net profit of $244 per ton of PET treated, contrasting sharply with the $261 loss of traditional water electrolysis. This work establishes a closed-loop paradigm for plastic valorization and sustainable catalyst design.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101775"},"PeriodicalIF":10.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144371042","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":"Subgroup discovery similarity score (SDSS): A significant criterion for the integration of statistical knowledge into machine learning in materials science","authors":"Huiran Zhang ,&nbsp;Mengmeng Dai ,&nbsp;Yudian Lin ,&nbsp;Baoyu Xu ,&nbsp;Pin Wu ,&nbsp;Lei Huang ,&nbsp;Huanyu Xu ,&nbsp;Shengzhou Li ,&nbsp;Yan Xu ,&nbsp;Zheng Tang ,&nbsp;Jincang Zhang ,&nbsp;Renchao Che ,&nbsp;Tao Xu ,&nbsp;Dongbo Dai","doi":"10.1016/j.mtphys.2025.101772","DOIUrl":"10.1016/j.mtphys.2025.101772","url":null,"abstract":"<div><div>In materials science research, knowledge and machine learning (ML) have a mutually reinforcing relationship. In efforts to improve the ability of learning material datasets, researchers obtain statistical knowledge from ML models and integrate it into subsequent ML models in different ways. However, determining the most suitable method for integrating statistical knowledge into the next stage remains challenging. This limits the precise application of knowledge-driven approaches. In this work, the Subgroup Discovery Similarity Score (SDSS) is proposed as a key criterion for integrating statistical knowledge into ML models. Statistical knowledge is extracted from material datasets by subgroup discovery. In the solid solution strengthening (<span><math><mrow><msub><mrow><mo>Δ</mo><mi>H</mi></mrow><mrow><mi>S</mi><mi>S</mi><mi>S</mi></mrow></msub></mrow></math></span>) dataset, a divide-and-conquer strategy achieves a correlation coefficient of 0.96 and a MAPE of 18.44 %, and reveals distinct strengthening mechanisms for the face-centered cubic (FCC) and body-centered cubic (BCC) phases. In the piezoelectric coefficients (<span><math><mrow><msub><mi>d</mi><mn>33</mn></msub></mrow></math></span>) dataset, statistical knowledge is encoded as features and embedded into the ML model for feature enhancement, effectively reducing the prediction error. The results suggest that our framework can extract and integrate statistical knowledge from material datasets into ML models without prior domain knowledge.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101772"},"PeriodicalIF":10.0,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335397","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":"Antisite defect “conductivity barrier” and 5d orbital hybridization for enhanced resistivity in piezoelectric crystals","authors":"Linyu Bai ,&nbsp;Dongjie Liu ,&nbsp;Qingzhi Song ,&nbsp;Qingshan Bao ,&nbsp;Xi Gao ,&nbsp;Xian Zhao ,&nbsp;Fapeng Yu ,&nbsp;Yanlu Li ,&nbsp;Shujun Zhang","doi":"10.1016/j.mtphys.2025.101771","DOIUrl":"10.1016/j.mtphys.2025.101771","url":null,"abstract":"<div><div>Piezoelectric crystals are extensively employed in sensing technologies, yet their intrinsic low resistivity at elevated temperatures poses a critical challenge, significantly hindering their application in high-temperature environments. It is found that Ta-containing piezoelectric crystals possess higher resistivity than their Nb-containing counterparts, but the underlying mechanisms remain unclear. Herein, we propose a novel electron relaxation mechanism that highlights the 5<em>d</em> orbital hybridization induced efficient electron trapping in antisite defects through a comparative analysis of La₃Ga_5.5Ta_0.5O₁₄ (LGT) and La₃Ga_5.5Nb_0.5O₁₄ (LGN) crystals. Our study reveals that the spatial extension of Ta-5<em>d</em> orbitals strengthens hybridization with O-2<em>p</em> orbitals, significantly increasing the crystal field splitting energy and deepening the Ta_Ga polaron potential well, which collectively elevate the excitation energy for electron release, accelerate the carrier recombination, and ultimately suppress electrical conductivity while boosting resistivity. Leveraging this mechanism, LGT crystal features a remarkable three-orders-of-magnitude enhancement in resistivity by co-regulation of electron concentration, antisite defect density and occupation sites via combining oxygen atmospheric control and Al doping. This study provides a new insight into the conduction mechanism and a general Ta-based design strategy for resistivity modulation beyond the piezoelectric crystals.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101771"},"PeriodicalIF":10.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329268","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":"Large-area high-yield 1T-TiSe2 saturable absorber for wavelength-tunable ultrafast fiber lasers","authors":"Zixin Yang ,&nbsp;Jian Wu ,&nbsp;Qiang Yu ,&nbsp;Xingang Hou ,&nbsp;Zhiyuan Zhang ,&nbsp;Xiaobin Wang ,&nbsp;Jinhai Zou ,&nbsp;Zhongquan Nie ,&nbsp;Jinyong Leng ,&nbsp;Pu Zhou ,&nbsp;Zongfu Jiang","doi":"10.1016/j.mtphys.2025.101770","DOIUrl":"10.1016/j.mtphys.2025.101770","url":null,"abstract":"<div><div>The production of high-yield saturable absorbers (SAs) with broad effective modulation zones remains a considerable challenge for the advancement of compact ultrafast fiber lasers. We present a fiber-end-integrated large-area high-yield 1T-TiSe₂ saturable absorber fabricated using chemical vapor transport (CVT) and accurate transfer technique. This strategic method achieves a three-order-of-magnitude enhancement in device area (tens of micrometers) compared to conventional liquid-phase exfoliation approaches. The comprehensive 1T-TiSe₂ has exceptional nonlinear optical properties, with a modulation depth of 20.1(±0.3)% and a saturation intensity of 7.29(±0.2) μJ/cm². The erbium-doped fiber laser enables the generation of stable femtosecond pulses with a compressed duration of 966 fs at a frequency of 13.84 MHz, marking a significant improvement over previously recorded picosecond durations. Additionally, a wavelength-tunable Q-switched laser has been demonstrated, including an 18 nm spectral range and maximum single-pulse energy of 62.4 nJ at 1565.8 nm. The findings highlight the exceptional potential of large-area 1T-TiSe₂ in integrating compact fiber laser design with high-energy ultrafast photonics, therefore establishing a versatile platform for tunable, high-performance pulsed laser systems.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101770"},"PeriodicalIF":10.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144296267","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":"Revealing electrical and mechanical degradation of Ni/Bi2Te3 interface through the quantitative interfacial diffusion analysis","authors":"Tian Qiu ,&nbsp;Zhi Li ,&nbsp;Jie Zhou ,&nbsp;Man Zhou ,&nbsp;Shucheng Bao ,&nbsp;Wei Zhu ,&nbsp;Yuan Deng","doi":"10.1016/j.mtphys.2025.101768","DOIUrl":"10.1016/j.mtphys.2025.101768","url":null,"abstract":"<div><div>Bismuth telluride (Bi₂Te₃)-based thermoelectric devices exhibit significant potential for energy harvesting and thermal management. However, device reliability and further development are critically limited by interface-induced failures, largely because quantitative failure analysis methods are lacking. This study systematically investigates interfacial degradation mechanisms and establishes a method for device lifetime prediction. First, accelerated thermal stress experiments are designed to analyze the Ni diffusion behavior at interface of different-type Bi₂Te₃-based TE materials, thereby determining the quantitative relationship among temperature (<em>T</em>), duration (<em>t</em>), activation energy (Δ<em>E</em>) and diffusion coefficient (<em>D</em>). Besides, the Ni diffusion depth (<span><math><mrow><mi>x</mi></mrow></math></span>) is confirmed to scale linearly with the square root of time (<span><math><mrow><mi>x</mi><mo>∝</mo><msup><mi>t</mi><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msup></mrow></math></span>) for a given diffusion coefficient, which is consistent with Fick's second law (<span><math><mrow><mi>D</mi><mo>=</mo><msup><mi>x</mi><mn>2</mn></msup><mo>/</mo><mn>4</mn><mi>t</mi></mrow></math></span>). Moreover, both interfacial specific contact resistivity (<span><math><mrow><msub><mi>ρ</mi><mi>c</mi></msub></mrow></math></span>) and tensile strength (<span><math><mrow><msub><mi>σ</mi><mi>s</mi></msub></mrow></math></span>) exhibit linear correlations with Ni diffusion depth under a specific degradation mechanism, enabling quantitative assessment of interface stability. Ultimately, adopting standard resistance failure criteria, we completely propose a method for quantitative lifetime prediction, which might provide universal applicability for the reliability assessment of thermoelectric devices and advance the prediction method of interface-induced failure analysis.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101768"},"PeriodicalIF":10.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144260499","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":"A novel modality of radiation photodynamic therapy for cancer: the combination therapy of gamma knife and Cu-Cy nanoparticle mediated photodynamic effect on liver cancer","authors":"Meitao Liu ,&nbsp;Tianming Wang ,&nbsp;Ke Jin ,&nbsp;Yuanyuan Liu ,&nbsp;Minping Zhang ,&nbsp;Wei Chen ,&nbsp;Xiangyu Chen","doi":"10.1016/j.mtphys.2025.101767","DOIUrl":"10.1016/j.mtphys.2025.101767","url":null,"abstract":"<div><div>Hepatocellular carcinoma (HCC) is an aggressive form of liver cancer. Gamma Knife is a minimally invasive treatment option for cancer, but it remains constrained by limitations such as tumor recurrence and metastatic progression. In contrast, photodynamic therapy (PDT) utilizes tumor-specific targeting while providing three clinical benefits: repeatable administration, immunomodulatory activity, and synergistic integration with systemic therapies. However, traditional PDT faces limitations in treating deep-seated tumors, such as HCC. Copper cysteamine (Cu-Cy) serves as a novel photosensitizer that can be activated directly by X-ray irradiation. Our initial studies have demonstrated that Cu-Cy can be activated by the gamma-ray emitted by the Gamma Knife, making it effective for PDT. Subsequent results showed that combining the Gamma Knife with Cu-Cy-mediated PDT can not only effectively suppress the proliferation and migration of HCC cells but also inhibit tumor growth without obvious side effects. This study substantiates the efficacy and safety of combining Gamma Knife treatment with Cu-Cy-mediated PDT for the management of HCC, while also introducing innovative theories and strategies in therapeutic approaches. Furthermore, our research offers a new perspective on the selection of excitation light sources for PDT, potentially advancing the clinical application and translational viability of Cu-Cy.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101767"},"PeriodicalIF":10.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252612","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":"Dual-response synergy: Gradient-designed honeycomb microwave absorber with strong broadband absorption","authors":"Naibo Wu ,&nbsp;Yuping Duan ,&nbsp;Wei Chen ,&nbsp;Yupeng Shi ,&nbsp;Hanxiao Jia ,&nbsp;Jiabin Ma ,&nbsp;Huifang Pang","doi":"10.1016/j.mtphys.2025.101766","DOIUrl":"10.1016/j.mtphys.2025.101766","url":null,"abstract":"<div><div>With the development of electromagnetic detection technology, higher requirements are put forward for wave-absorbing materials. The honeycomb microwave absorber has the advantages of low cost, light weight, strong wave-absorbing ability and wide wave-absorbing band. However, it has a poor absorption capacity in the S and C bands and usually requires a large thickness to achieve a strong absorption capacity. In this study, we use a realistic and symmetric model to reveal the relationship between the absorption/reflection properties of honeycomb wave-absorbing materials and the absorber content and the number of impregnations. The surface of the honeycomb is covered with fiberglass board to reduce the reflectivity in the target band. Simultaneous controlled tuning of the 5 GHz and 12–14 GHz absorption peaks. And a dual-response synergistic gradient honeycomb sandwich structure (GHSS) is constructed using a low-reflective high-frequency response matching layer and a high-absorption low-frequency response absorber layer and adjusting the skin thickness to reduce the reflectivity. The gradient design improves the impedance matching between the honeycomb structure and air to enhance the absorption, and the dual-response synergy broadens the absorption band. The GHSS has comprehensive and effective absorption coverage in 2–18 GHz, with an average reflection loss of −18.8 dB. Average absorption up to −18.0 dB in S and C bands. The prepared lightweight and low-thickness composite honeycomb are expected to have a good application prospect in the field of electromagnetic wave absorption.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101766"},"PeriodicalIF":10.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252607","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":"Organic/inorganic heterointerfaces engineering for balanced charge distribution","authors":"Yongjian Chen ,&nbsp;Yuanxiao Qu ,&nbsp;Longchao Huang ,&nbsp;Xiankan Zeng ,&nbsp;Huayang Zhang ,&nbsp;Wen Li ,&nbsp;Guanqi Tang ,&nbsp;Xiangtian Xiao ,&nbsp;Weiqing Yang","doi":"10.1016/j.mtphys.2025.101764","DOIUrl":"10.1016/j.mtphys.2025.101764","url":null,"abstract":"<div><div>Subnanometer-scale lithium fluoride (LiF) layer has been widely employed to enhance electron injection between Al electrode and organic electron transport layers (ETL). However, thermally evaporated ultrathin LiF exhibits incomplete substrate coverage and generates substantial defect-induced charge trapping centers during operation, resulting in poor organic/inorganic interfacial characteristics. In this work, a composite electron injection layer (cEIL) was constructed by combining 8-Quinolinolato lithium (Liq) with excellent interface characteristics of organic/inorganic transition and LiF with strong polarity, which significantly improved the surface potential distribution and achieved balanced charge distribution. The optimized perovskite light-emitting diodes (PeLEDs) demonstrated remarkable electroluminescence (EL) performance enhancement: the external quantum efficiency (EQE) increased from 15.74 % to 20.53 %, and the current efficiency (CE) improved from 73.39 cd/A to 98.59 cd/A. This study provides new insights for organic/inorganic interface engineering in high-performance optoelectronic devices.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"56 ","pages":"Article 101764"},"PeriodicalIF":10.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237328","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":"Boosted energy harvesting performance of magneto-mechano-electric generator via photon flash annealing for self-powered IoT sensors","authors":"Hyunseok Song ,&nbsp;Srinivas Pattipaka ,&nbsp;Yun Sik Hwang ,&nbsp;Mahesh Peddigari ,&nbsp;Yuho Min ,&nbsp;Kyeongwoon Chung ,&nbsp;Jung Hwan Park ,&nbsp;Chang Kyu Jeong ,&nbsp;Han Eol Lee ,&nbsp;Jongmoon Jang ,&nbsp;Kwi-Il Park ,&nbsp;Sung-Dae Kim ,&nbsp;Jaewon Jeong ,&nbsp;Woon-Ha Yoon ,&nbsp;Jungho Ryu ,&nbsp;Geon-Tae Hwang","doi":"10.1016/j.mtphys.2025.101758","DOIUrl":"10.1016/j.mtphys.2025.101758","url":null,"abstract":"<div><div>In this paper, we demonstrate a boosted output magneto-mechano-electric (MME) generator consisting of piezoelectric Pb(Mg_1/3Nb_2/3)O3‐Pb(Zr,Ti)O3 (PMN-PZT) single crystal and laminated FeBSi alloy (Metglas) prepared by employing photon flash annealing (PFA) treatment. The high-temperature PFA treatment with millisecond-level short pulse irradiation on the Metglas sheet induces surface nanocrystallization, enhances magnetostrictive and mechanical responses. The PFA-treated Metglas-based MME generator exhibits a strong magnetoelectric coupling coefficient of 215 V/cm∙Oe, an open-circuit root mean square (RMS) voltage of 26 V, and RMS output power of 3 mW at an AC magnetic field of 8 Oe. These values are noticeably larger (∼100 % enhancement for output power) than those of pristine Metglas-based MME generators due to the enhanced piezomagnetic coefficient and mechanical quality factor of PFA Metglas. Finally, the output electric energy of the PFA-treated MME generator is utilized to drive an Internet of Things (IoT) device by integrating the MME generator with a power management circuit, a storage capacitor, and an IoT temperature sensor.</div></div>","PeriodicalId":18253,"journal":{"name":"Materials Today Physics","volume":"55 ","pages":"Article 101758"},"PeriodicalIF":10.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153798","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}