Materials Today最新文献

{"title":"High entropy oxide epitaxial films with interface perpendicular magnetic anisotropy and tunnel magnetoresistance effect toward spintronic applications","authors":"Rombang Rizky Sihombing ,&nbsp;Thomas Scheike ,&nbsp;Jun Uzuhashi ,&nbsp;Hideyuki Yasufuku ,&nbsp;Tadakatsu Ohkubo ,&nbsp;Zhenchao Wen ,&nbsp;Seiji Mitani ,&nbsp;Hiroaki Sukegawa","doi":"10.1016/j.mattod.2025.06.025","DOIUrl":"10.1016/j.mattod.2025.06.025","url":null,"abstract":"<div><div>High entropy materials, usually composed of five or more constituent elements with a high mixing entropy have attracted increasing attention due to the marked development of new phases of multicomponent structural and functional materials. In particular, high entropy oxides (HEOs) are expected to realize their potential for electronic functionalities in spintronics, since the oxygen lattice required for achieving the functionalities remains besides the cation site disorder. In this study, we explored the HEO thin films with a rock-salt-like structure of LiTiMgAlGaO (L5O) for perpendicular magnetic anisotropy (PMA), which is induced at an interface with the CoFeB ferromagnet. The atomically homogeneous cation distributions in the 10–20 nm thick L5O films were achieved by atomic sputtering lamination on a MgO(001) single crystal substrate. The films were grown with a highly (001)-oriented epitaxial growth and have an atomically flat surface with an average roughness of 0.07 nm. We observed perpendicular magnetization of CoFeB on the L5O layer after 250–350 °C post-annealing, revealing that introduction of significantly large PMA at HEO/ferromagnet interfaces. A large interface PMA energy of up to ∼ 0.8 erg/cm² at the interface was observed due to the achievement of structurally stable epitaxial layers with high crystallinity and sharp interfacial flatness of L5O and CoFeB interfaces. We also demonstrated that a tunnel magnetoresistance (TMR) ratio of up to 84 % at room temperature in epitaxial Fe/L5O/Fe(001) magnetic tunnel junctions (MTJs) with ultrathin MgO insertions at the L5O interfaces, indicating that the spin-dependent coherent tunneling mechanism is also observed in HEO-based MTJs. In addition, the L5O barrier exhibits low barrier heights less than 1 eV due to the bandgap reduction caused by the five cations. Our results of the high interface PMA energy, the relatively large TMR ratio, and the low barrier height show that the HEO materials can be a promising material family of ultra-thin barriers of MTJs for the next generation of spintronic devices such as ultra-high-density memory and spin artificial intelligence devices.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 12-23"},"PeriodicalIF":22.0,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Incorporation of high-valence dopants in primary particles for strain-resistive Co-free high-Ni LiNi0.9Mn0.1O2 cathodes","authors":"Jiwoong Oh ,&nbsp;Jaekwang Kim ,&nbsp;Jong-Heon Lim ,&nbsp;Kyu-Young Park ,&nbsp;Songhun Yoon ,&nbsp;Changshin Jo","doi":"10.1016/j.mattod.2025.06.042","DOIUrl":"10.1016/j.mattod.2025.06.042","url":null,"abstract":"<div><div>Co-free high-Ni cathode materials, which offer advantages such as high energy density and low cost, exhibit unsatisfactory cyclic life due to severe c-lattice distortion during cycling. In existing doping strategies, charge imbalance and ionic size differences with Ni³⁺ prevent the incorporation of high-valence dopants into primary particles during the calcination, thereby limiting their ability to suppress lattice strain. In this study, we employ a new doping strategy utilizing organic surfactants during the co-precipitation process to homogeneously position Zr⁴⁺ ions within the primary particles of LiNi_0.9Mn_0.1O₂. Zr⁴⁺ ions located within the primary particles exerted a pillar effect, significantly enhancing the structural robustness of the material. During the first cycle, the c-lattice contraction is reduced, effectively inhibiting microcrack formation in the particles. As a result, it exhibits a significantly improved capacity retention of 98.6 % (189.2 mAh g⁻¹) after 100 cycles.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 314-321"},"PeriodicalIF":22.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144840745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-permanent dipole moment sensitizers as key to anticharge trapping of terminal dopant in highly efficient phosphor-sensitized fluorescence systems","authors":"Dong Jin Shin ,&nbsp;Junseop Lim ,&nbsp;Jae-Min Kim ,&nbsp;Jun Yeob Lee","doi":"10.1016/j.mattod.2025.06.038","DOIUrl":"10.1016/j.mattod.2025.06.038","url":null,"abstract":"<div><div><span><span>To design a highly efficient phosphor-sensitized fluorescence (PSF) system, it is crucial to suppress hole trap formation in the terminal dopant<span>. However, strategies to suppress hole trap formation in terminal dopants have not been fully explored. In this study, we propose an approach to improve the overall performance of PSF devices by addressing charge trapping in the terminal dopant using high-permanent </span></span>dipole moment<span> (PDM) phosphorescent sensitizers. Through the cascade modulation of high PDM and trap energy, the trapped charges in the terminal dopant were significantly suppressed. The phosphorescent sensitizer with high PDM and shallow highest occupied molecular orbital (HOMO) energy levels exhibited the highest trap suppression capability. The enhanced trap suppression capability resulted in a 391% improvement in the external quantum efficiency and a threefold increase in the device lifetime compared to a TBRB-only device. Finally, we present a guideline for selecting phosphorescent sensitizers with high trap suppression capability based on the combined influence of PDM and trap energy levels via </span></span>impedance spectroscopy. This framework provides valuable insights into the development of advanced PSF systems.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 293-301"},"PeriodicalIF":22.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144840743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring Biosensor Interfaces: Polydopamine-Assisted Surface Functionalization for Enabling Biorecognition","authors":"Nayoung Son,&nbsp;Seonki Hong","doi":"10.1016/j.mattod.2025.06.021","DOIUrl":"10.1016/j.mattod.2025.06.021","url":null,"abstract":"<div><div>Polydopamine (pDA)–based surface engineering has garnered significant attention as a bioinspired and versatile strategy for enhancing the performance of biosensing platforms. Its strong adhesion to a wide range of substrates, combined with excellent biocompatibility, enables seamless integration into diverse sensing systems. This review summarizes recent advances in pDA-based coatings, with a particular focus on synthetic strategies, surface functionalization<span> techniques, and their applications in biosensors for biomarker detection in biofluids. Special emphasis is placed on immobilization techniques for protein-based bioreceptors, nucleic acids, and blocking agents used to minimize nonspecific interactions. Furthermore, emerging applications of engineered pDA as synthetic receptors via molecular imprinting are discussed. Although current approaches remain largely limited to laboratory settings and require validation for scalable production, this review envisions the integration of molecular-level insights with practical design strategies to drive the development of next-generation pDA-enabled biosensing technologies.</span></div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 871-887"},"PeriodicalIF":22.0,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrolyte-driven interphase stabilization in high-voltage sodium-ion full cells","authors":"Tara Ingebrand,&nbsp;Zehao Cui,&nbsp;Andrei Dolocan,&nbsp;Arumugam Manthiram","doi":"10.1016/j.mattod.2025.06.040","DOIUrl":"10.1016/j.mattod.2025.06.040","url":null,"abstract":"<div><div><span><span>Sodium-ion batteries with a high-voltage O3-type layered oxide<span> cathode paired with a hard carbon anode can offer high </span></span>energy density; however, significant interfacial instabilities driven by electrode/electrolyte reactions limit a broader industrial adoption. Localized high concentration electrolytes (LHCEs) are a rational choice as they promote salt decomposition over solvent, forming stable, inorganic-rich electrode–electrolyte interphases (EEIs). We present here a comparison of high-voltage (4.2 V) hard carbon | NaNi</span>_1/3Fe_1/3Mn_1/3O₂<span> pouch cells in LHCEs and in a standard carbonate-based electrolyte by (i) examining the influence of diluent choice on the electrochemical performance<span><span> of LHCEs and (ii) investigating how the electrolyte chemistry affects the </span>composition and structure of EEIs formed. Importantly, LHCEs demonstrate superior electrochemical performance, achieving 37 % higher capacity after 200 cycles (119 vs. 87 mA h g</span></span>⁻¹<span><span>) compared to the carbonate-based electrolyte. The enhanced stabilization provided by LHCEs at the interface with high-voltage sodium<span><span> layered oxide cathode is revealed by gas evolution measurements obtained through online electrochemical </span>mass spectrometry (OEMS). Time-of-flight </span></span>secondary ion mass spectrometry<span> paired with focused ion beam<span><span> and advanced statistical analyses reveal that the superior performance of LHCE stems from a robust, thin cathode electrolyte interphase formed on the sodium layered oxide cathode and a homogeneous </span>solid electrolyte interphase formation on the hard carbon anode. This study highlights the critical importance of electrolyte design in interphase stabilization, which plays a key role in advancing sodium-ion batteries toward commercial viability.</span></span></span></div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 302-313"},"PeriodicalIF":22.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144840744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Advancements in 2D transition metal dichalcogenides (TMDs) inks for printed optoelectronics: A comprehensive review” [Mater. Today 77 (2024) 142–184]","authors":"Iqra Shahbaz ,&nbsp;Muhammad Tahir ,&nbsp;Lihong Li ,&nbsp;Yanlin Song","doi":"10.1016/j.mattod.2025.06.035","DOIUrl":"10.1016/j.mattod.2025.06.035","url":null,"abstract":"","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Page 26"},"PeriodicalIF":22.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nucleic acid/cyanine composite nanomedicine for targeted remote tumor therapy to counteract RT-induced immunosuppression","authors":"Minmin Zhang ,&nbsp;Lina Gu ,&nbsp;Ruijin Luo ,&nbsp;Dan Liu ,&nbsp;Jingtao Li ,&nbsp;Zhiqin Deng ,&nbsp;Xiaoling Luo ,&nbsp;Xiaoyuan Chen ,&nbsp;Shipeng Ning","doi":"10.1016/j.mattod.2025.06.036","DOIUrl":"10.1016/j.mattod.2025.06.036","url":null,"abstract":"<div><div><span><span>Although radiotherapy (RT) can enhance T cell<span> priming by inducing in-situ tumor vaccines, it is essential to acknowledge that the immunosuppression resulting from RT, characterized by the infiltration of myeloid-derived suppressor cells (MDSCs) and the upregulation of PD-L1, attenuates T cell effector function and exacerbates distant tumors and metastatic lesions. In this study, we synthesized a novel iodine-incorporated </span></span>cyanine dye<span>, designated Cy-I, and co-encapsulated CpG with Cy-I within T cell membrane fusion </span></span>liposomes<span><span><span> to create an innovative composite nanomedicine referred to as CIFL. We established </span>bilateral tumor and </span>lung metastasis<span> models, followed by intravenous administration of CIFL. Our results indicate that CIFL enhances the efficacy of RT while promoting the generation of tumor vaccines and activating T cells. Notably, RT-induced upregulation of PD-L1 in distal tumors enhances the distal tumor targeting of CIFL, enabling it to effectively inhibit the expression of PD-L1 in distal tumors and block the function of MDSCs. The combinatorial treatment of CIFL and RT not only enhances primary tumor treatment but also suppresses distal tumor metastatic growth, and reverses immunosuppression in distal tumors post-RT. This therapeutic strategy demonstrates significant promise for clinical translation.</span></span></div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 272-283"},"PeriodicalIF":22.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144840741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking low temperature-resistant lithium metal batteries: Mechanisms, challenges, AI and functional electrolytes design","authors":"Jing Wang ,&nbsp;Jai Kumar ,&nbsp;Kai Ding ,&nbsp;Xinning Nie ,&nbsp;Xin Zhang ,&nbsp;Wanyu Zhao ,&nbsp;Zhuanpei Wang ,&nbsp;Xiaowei Yang","doi":"10.1016/j.mattod.2025.06.039","DOIUrl":"10.1016/j.mattod.2025.06.039","url":null,"abstract":"<div><div>Lithium metal batteries (LMBs) represent a viable substitute for lithium-ion batteries (LIBs), particularly for next-generation electric vehicles (EVs), aerospace applications, and grid storage solutions. However, their application in low-temperature environments is significantly constrained by several issues, including sluggish ion transport, inadequate electrode kinetics, electrolyte freezing, lithium dendrite formation, and solid electrolyte interphase instability (SEI) variability. This study offers comprehensive and innovative analysis that integrates unique electrolyte design techniques and newly created AI-assisted models to tackle significant issues in low-temperature lithium metal batteries (LT-LMBs). This review explores the enhancement of LT-LMB performance by functional electrolytes through the facilitation of ion-conductive SEI, inhibition of lithium dendrite development, and reduction of adverse reactions. The study comprehensively examines the current research environment, including innovative electrolyte formulations, sophisticated characterization methods, and theoretical insights into innovative electrolyte-induced interfacial changes. The study also reviews AI models that facilitate the rapid operation of batteries employing low-temperature electrolytes for LMBs and their future potential. The research examines the limitations and problems of existing electrolyte functionalization technologies and potential future designs for high-performance LT-LMBs. This study thoroughly examines breakthroughs in low-temperature electrolytes and directs the progression of next-generation lithium metal batteries for practical use in challenging conditions.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 979-1004"},"PeriodicalIF":22.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144841856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 selective electrocatalysis-derived ultra-dense and mechanically robust fluorinated solid electrolyte interface for high-capacity and long-cycling silicon electrode","authors":"Wengang Yan ,&nbsp;Feng Wu ,&nbsp;Siyuan Ma ,&nbsp;Yuefeng Su ,&nbsp;Bin Wang ,&nbsp;Yibiao Guan ,&nbsp;Tinglu Song ,&nbsp;Qing Huang ,&nbsp;Lai Chen ,&nbsp;Meng Wang ,&nbsp;Ning Li","doi":"10.1016/j.mattod.2025.06.037","DOIUrl":"10.1016/j.mattod.2025.06.037","url":null,"abstract":"<div><div><span><span>The commercial application of silicon anode is significantly impeded by its poor cycling life due to the fragility and continued growth of the solid electrolyte interface (SEI). It is currently considered feasible to employ fluorine-rich electrolyte additives to derive LiF-rich SEI<span>, while the decomposition of these electrolyte additives would simultaneously lead to the interweavement of loose and porous organic components with LiF-rich SEI, thereby destructing the compactness and mechanical integrity of the SEI. Herein, we propose the surface selective </span></span>electrocatalysis strategy to construct ultra-dense and robust fluoride-SEI on the Si surface, and the surface 1T-MoS</span>₂ with rich sulfur vacancies can not only selectively adsorb fluorine-containing lithium salts and solvents, but also electrocatalyze the defluorination reactions of P-F and C-F bonds into fluorides. The optimized Si@MS electrode displays outstanding capacity retention of 95.5 %, and average coulombic efficiency above 99.8 % within 1000 cycles at 1 A g⁻¹. This study provides significant guidance to design advanced anode materials for rechargeable batteries with long cycle life.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 284-292"},"PeriodicalIF":22.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144840742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 functionalized MXene ink-enabled washable smart e-textiles with exceptional gas sensing properties","authors":"Seonyeop Kim ,&nbsp;Young Ho Park ,&nbsp;Seongeun Lee ,&nbsp;Arun S. Nissimagoudar ,&nbsp;Seung-Cheol Lee ,&nbsp;Jeongmin Kim ,&nbsp;B. Yamunasree ,&nbsp;Jeevan Kumar Reddy Modigunta ,&nbsp;Tae Yun Ko ,&nbsp;Miyeon Kwon ,&nbsp;Juhea Kim ,&nbsp;Seung Jun Lee ,&nbsp;G. Murali ,&nbsp;Wonseok Lee ,&nbsp;Insik In","doi":"10.1016/j.mattod.2025.06.032","DOIUrl":"10.1016/j.mattod.2025.06.032","url":null,"abstract":"<div><div><span><span>Electronic textiles<span> (e-textiles) that sense physical stimuli and toxic gases, exhibit Joule heating capabilities, and enable information transmission hold great promise for advancing personalized healthcare. Titanium carbide </span></span>MXene, Ti</span>₃C₂T<em>_x</em> (T<em>_x</em><span> = –OH, –O, –F, etc.), has shown huge potential for creating such e-textiles owing to its two-dimensional morphology, high electrical conductivity<span>, reactive surface characteristics, and facile integration into textiles by solution-based approaches. However, MXene<span><span><span> nanosheets’ poor oxidation stability and weak adhesion to </span>textile fibers raise concerns about MXene-based e-textiles’ washing durability. Further, the toxic gas sensing abilities of MXene-based e-textiles have hardly been realized. To overcome these challenges, MXene surface is functionalized with dopamine-conjugated carboxymethyl cellulose ligands (CMC-DA-MXene), which protect MXene from oxidation and initiate strong adhesive interactions with textile fibers. Despite the presence of CMC-DA intercalants, the CMC-DA-MXene nanosheet assemblies maintain good </span>electrical conductivity; as a result, e-textiles exhibited excellent Joule heating and tactile/flex sensing properties. Additionally, the unique ability of CMC-DA ligand to selectively interact with NO</span></span></span>₂ gas molecules and humidity through the catechol head and carboxymethyl cellulose tail, respectively, enables the incorporation of NO₂ and humidity sensing capabilities into CMC-DA-MXene e-textiles. The gas/humidity sensing mechanism is explained using density functional theory calculations. Overall, the results provide a foundation for realizing multifunctional MXene-based e-textiles that are oxidation-resistant and washable.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"88 ","pages":"Pages 251-262"},"PeriodicalIF":22.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144840739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}