首页 > 最新文献

Materials Today最新文献

英文 中文
Optimization of local coordination structure to achieve fast Na+ diffusion in Na4Fe3(PO4)2(P2O7) at high voltage 局部配位结构优化,实现高压下Na4Fe3(PO4)2(P2O7)中Na+的快速扩散
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.08.027
Pei-yao Li , Ying-de Huang , Yu-jing Chen , Min Chen , Wen Yin , Qing Wu , Xia-hui Zhang , Guo-dong Ren , Jun-chao Zheng
Na4Fe3(PO4)2(P2O7) (NFPP) is a promising cathode material for commercial sodium-ion batteries. However, at high voltages, the migration of Fe1 along the a-axis with distortion of the [P2O7] group, leads to the closure of Na+ diffusion channels. Herein, we incorporated boron (B) to the framework voids formed by the interconnected polyhedral network, thereby inducing local lattice distortion. Synchrotron X-ray absorption spectroscopy confirms that B adopts a 3-coordination, forming flexible B-O bonds that tune the Fe coordination environment. Neutron total scattering pair distribution function (PDF) analyses reveal shortened Fe-O bonds and improved Na-O/P-O local ordering, which collectively inhibit crystal plane slippage and preserve Na+ transport pathways. Moreover, enhanced hybridization between Fe 3d and O 2p orbitals reduces electron localization and boosts electronic conductivity. Operando X-ray diffraction (XRD) and distribution of relaxation times (DRT) analyses further demonstrate that the optimized NFPP-1 %BO3 (Na4Fe2.91(PO4)1.98(BO3)0.02(P2O7)) exhibits reduced volumetric changes and enhanced kinetics during sodiation/desodiation. Consequently, NFPP-1 %BO3 delivers 87.4mAh g−1 at 50C and retains excellent capacity over 2000 cycles. This work highlights a novel strategy for stabilizing structures at high charge states and provides valuable insights into the structural design of high-performance NFPP cathode materials.
Na4Fe3(PO4)2(P2O7) (NFPP)是一种很有前途的商用钠离子电池正极材料。然而,在高压下,Fe1随着[P2O7]基团的畸变沿a轴迁移,导致Na+扩散通道关闭。在这里,我们将硼(B)加入到由相互连接的多面体网络形成的框架空隙中,从而引起局部晶格畸变。同步加速器x射线吸收光谱证实B采用3-配位,形成灵活的B- o键,调节Fe配位环境。中子总散射对分布函数(PDF)分析表明,Fe-O键的缩短和Na- o /P-O的局部有序度的提高共同抑制了晶面滑移,并保留了Na+的输运途径。此外,Fe 3d和o2p轨道之间的杂化增强,降低了电子的局域化,提高了电子的导电性。操作x射线衍射(XRD)和弛豫时间分布(DRT)分析进一步表明,优化后的NFPP-1 %BO3 (Na4Fe2.91(PO4)1.98(BO3)0.02(P2O7))在盐化/脱盐过程中表现出较小的体积变化和增强的动力学。因此,nfpp - 1% BO3在50C下提供87.4mAh g -1,并在2000次循环中保持优异的容量。这项工作强调了一种在高电荷状态下稳定结构的新策略,并为高性能NFPP阴极材料的结构设计提供了有价值的见解。
{"title":"Optimization of local coordination structure to achieve fast Na+ diffusion in Na4Fe3(PO4)2(P2O7) at high voltage","authors":"Pei-yao Li ,&nbsp;Ying-de Huang ,&nbsp;Yu-jing Chen ,&nbsp;Min Chen ,&nbsp;Wen Yin ,&nbsp;Qing Wu ,&nbsp;Xia-hui Zhang ,&nbsp;Guo-dong Ren ,&nbsp;Jun-chao Zheng","doi":"10.1016/j.mattod.2025.08.027","DOIUrl":"10.1016/j.mattod.2025.08.027","url":null,"abstract":"<div><div>Na<sub>4</sub>Fe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>(P<sub>2</sub>O<sub>7</sub>) (NFPP) is a promising cathode material for commercial sodium-ion batteries. However, at high voltages, the migration of Fe1 along the <em>a</em>-axis with distortion of the [P<sub>2</sub>O<sub>7</sub>] group, leads to the closure of Na<sup>+</sup> diffusion channels. Herein, we incorporated boron (B) to the framework voids formed by the interconnected polyhedral network, thereby inducing local lattice distortion. Synchrotron X-ray absorption spectroscopy confirms that B adopts a 3-coordination, forming flexible B-O bonds that tune the Fe coordination environment. Neutron total scattering pair distribution function (PDF) analyses reveal shortened Fe-O bonds and improved Na-O/P-O local ordering, which collectively inhibit crystal plane slippage and preserve Na<sup>+</sup> transport pathways. Moreover, enhanced hybridization between Fe 3<em>d</em> and O 2<em>p</em> orbitals reduces electron localization and boosts electronic conductivity. <em>Operando</em> X-ray diffraction (XRD) and distribution of relaxation times (DRT) analyses further demonstrate that the optimized NFPP-1 %BO<sub>3</sub> (Na<sub>4</sub>Fe<sub>2.91</sub>(PO<sub>4</sub>)<sub>1.98</sub>(BO<sub>3</sub>)<sub>0.02</sub>(P<sub>2</sub>O<sub>7</sub>)) exhibits reduced volumetric changes and enhanced kinetics during sodiation/desodiation. Consequently, NFPP-1 %BO<sub>3</sub> delivers 87.4mAh g<sup>−1</sup> at 50C and retains excellent capacity over 2000 cycles. This work highlights a novel strategy for stabilizing structures at high charge states and provides valuable insights into the structural design of high-performance NFPP cathode materials.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 104-113"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415224","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}
引用次数: 0
The perspective of offshore wind power: based hydrogen production, hydrogen storage, and hydrogen transportation 海上风力发电的前景:基于制氢、储氢和氢运输
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.09.016
Shuling Chen , Xuezhang Xiao , Zhinian Li , Liuzhang Ouyang
The integration of abundant offshore wind power (OWP) resources into electrolytic water hydrogen production systems presents a viable solution for addressing the utilization challenges of remote offshore wind-generated electricity while enabling large-scale and low-cost green hydrogen production. However, this approach faces significant technical barriers due to the extended transportation distances and complex marine environmental conditions. Both, the laying and maintenance of submarine transportation cables and hydrogen transportation pipelines face high costs. Therefore, direct hydrogen transportation through shipping, is an improved strategy to deal with large-scale hydrogen production and transportation. This review puts forward the following points. First, an innovative method of the zero-pressure-differential solid-state hydrogen storage is presented to solve the problem of storage and transportation in green hydrogen industry. Second, a novel strategy for the cascade utilization of low-temperature seawater, waste heat in electrolytic hydrogen and surplus wind energy is proposed to significantly improve the energy efficiency in large-scale storage and transportation of hydrogen energy. Finally, the development and scheme of hydrogen energy system integration on offshore platform are put forward. This perspective provides a new insight for the research on the safety and reliability of hydrogen production from deep-sea offshore wind power and related hydrogen storage and transportation technology and equipment.
将丰富的海上风电(OWP)资源整合到电解水制氢系统中,为解决远程海上风力发电的利用挑战提供了一种可行的解决方案,同时实现了大规模、低成本的绿色制氢。然而,由于运输距离的延长和复杂的海洋环境条件,这种方法面临着重大的技术障碍。海底输送电缆和氢气输送管道的铺设和维护都面临着高昂的成本。因此,通过海运直接运输氢气,是应对大规模氢气生产和运输的改进策略。本文提出以下几点。首先,提出了一种创新的零压差固态储氢方法,解决了绿色氢产业的储运问题。其次,提出了低温海水、电解氢余热和风能余热梯级利用的新策略,可显著提高氢能大规模储运的能效。最后,提出了海上平台氢能系统集成的发展和方案。这一视角为研究深海海上风电制氢的安全性和可靠性以及相关的储氢运输技术和设备提供了新的视角。
{"title":"The perspective of offshore wind power: based hydrogen production, hydrogen storage, and hydrogen transportation","authors":"Shuling Chen ,&nbsp;Xuezhang Xiao ,&nbsp;Zhinian Li ,&nbsp;Liuzhang Ouyang","doi":"10.1016/j.mattod.2025.09.016","DOIUrl":"10.1016/j.mattod.2025.09.016","url":null,"abstract":"<div><div>The integration of abundant offshore wind power (OWP) resources into electrolytic water hydrogen production systems presents a viable solution for addressing the utilization challenges of remote offshore wind-generated electricity while enabling large-scale and low-cost green hydrogen production. However, this approach faces significant technical barriers due to the extended transportation distances and complex marine environmental conditions. Both, the laying and maintenance of submarine transportation cables and hydrogen transportation pipelines face high costs. Therefore, direct hydrogen transportation through shipping, is an improved strategy to deal with large-scale hydrogen production and transportation. This review puts forward the following points. First, an innovative method of the zero-pressure-differential solid-state hydrogen storage is presented to solve the problem of storage and transportation in green hydrogen industry. Second, a novel strategy for the cascade utilization of low-temperature seawater, waste heat in electrolytic hydrogen and surplus wind energy is proposed to significantly improve the energy efficiency in large-scale storage and transportation of hydrogen energy. Finally, the development and scheme of hydrogen energy system integration on offshore platform are put forward. This perspective provides a new insight for the research on the safety and reliability of hydrogen production from deep-sea offshore wind power and related hydrogen storage and transportation technology and equipment.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 800-814"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415368","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}
引用次数: 0
Integrating life into material design for living materials 4.0: Navigating challenges and future trajectories from static to dynamic evolution 将生命融入材料设计4.0:从静态到动态进化的挑战和未来轨迹
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.08.015
Aszad Alam, Anurag Kumar, Swaminathan Jiji, Konala Akhila, Mudrika Khandelwal
With over two-thirds of research in the area of “Living materials” emerging in the past five years, it is essential to not only highlight the key insights and historical milestones but also to delve into long-term implications and future challenges. This review presents a visionary roadmap for unlocking the full potential of living materials by discussing the commercially available and historically existing living materials, as well as introducing a generational categorization akin to other technological advancements. Unique to this review is a comprehensive analysis of design, optimization, evaluation, and safety, covering biocompatibility, signaling dynamics, cell-matrix interactions, and adhesion across the spectrum of self-generated to artificially integrated matrices. Herein, the detailed status of recent developments in living materials in drug delivery, cell therapy, tissue scaffolding, biosensing, building materials, and environmental applications has been presented. Besides, this review highlights the need for advanced in-vitro/in-vivo models and regulatory considerations to mitigate the long-term consequences, ensuring reliable clinical translation, industrial adoption, and market acceptability. Finally, this review pioneers the introduction of living materials into five unexplored areas; optics, packaging, coatings, energy, and textiles, marking the systematic effort to expand the field beyond its current landscape through strategic identification of emerging opportunities.
在过去的五年中,有超过三分之二的“生活材料”领域的研究出现,因此,不仅要突出关键的见解和历史里程碑,还要深入研究长期影响和未来挑战。这篇综述通过讨论商业上可用的和历史上存在的生物材料,以及引入类似于其他技术进步的代际分类,为释放生物材料的全部潜力提供了一个有远见的路线图。这篇综述的独特之处是对设计、优化、评估和安全性的全面分析,涵盖了生物相容性、信号动力学、细胞-基质相互作用以及自生成到人工集成基质的粘附性。本文详细介绍了生物材料在药物传递、细胞治疗、组织支架、生物传感、建筑材料和环境应用等方面的最新进展。此外,本综述强调需要先进的体外/体内模型和监管考虑,以减轻长期后果,确保可靠的临床转化,工业采用和市场可接受性。最后,本文提出了将生物材料引入五个尚未开发的领域;光学、包装、涂料、能源和纺织品,标志着通过战略性地识别新兴机会,系统地扩大了该领域的版图。
{"title":"Integrating life into material design for living materials 4.0: Navigating challenges and future trajectories from static to dynamic evolution","authors":"Aszad Alam,&nbsp;Anurag Kumar,&nbsp;Swaminathan Jiji,&nbsp;Konala Akhila,&nbsp;Mudrika Khandelwal","doi":"10.1016/j.mattod.2025.08.015","DOIUrl":"10.1016/j.mattod.2025.08.015","url":null,"abstract":"<div><div>With over two-thirds of research in the area of “Living materials” emerging in the past five years, it is essential to not only highlight the key insights and historical milestones but also to delve into long-term implications and future challenges. This review presents a visionary roadmap for unlocking the full potential of living materials by discussing the commercially available and historically existing living materials, as well as introducing a generational categorization akin to other technological advancements. Unique to this review is a comprehensive analysis of design, optimization, evaluation, and safety, covering biocompatibility, signaling dynamics, cell-matrix interactions, and adhesion across the spectrum of self-generated to artificially integrated matrices. Herein, the detailed status of recent developments in living materials in drug delivery, cell therapy, tissue scaffolding, biosensing, building materials, and environmental applications has been presented. Besides, this review highlights the need for advanced in-vitro/in-vivo models and regulatory considerations to mitigate the long-term consequences, ensuring reliable clinical translation, industrial adoption, and market acceptability. Finally, this review pioneers the introduction of living materials into five unexplored areas; optics, packaging, coatings, energy, and textiles, marking the systematic effort to expand the field beyond its current landscape through strategic identification of emerging opportunities.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 385-410"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415365","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}
引用次数: 0
Interfacial stability Enhancement in Single-Crystal NCM cathodes through electronic structure optimization 通过电子结构优化提高单晶NCM阴极的界面稳定性
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.10.006
Boseong Heo , Miseung Kim , Chihyun Hwang , Hyun Woo Kim , Minwook Pin , Beom Tak Na , Jin Bae Lee , Chul-u Bak , Jun Young Cheong , Seung-Ho Yu , Joon Ha Chang , Hyun-seung Kim , Youngjin Kim
Interfacial degradation mechanisms in layered oxide cathodes represent fundamental limitations for advanced lithium-ion systems, yet systematic differentiation between bulk crystallographic strain and electronic structure-mediated interfacial instability remains challenging. Through comparative investigation of single-crystal LiNi0.6Co0.1Mn0.3O2 (SC-NCM613) and LiNi0.8Co0.1Mn0.1O2 (SC-NCM811) under equivalent electrochemical conditions, we demonstrate that performance differentiation originates from composition-dependent electronic structure modulation at electrode–electrolyte interfaces rather than conventional voltage constraints. Contrary to conventional expectations, single-crystal NCM613 achieves superior capacity retention (86.8 % after 1,000 cycles) at elevated voltage (4.35 V) compared to NCM811 (84.1 % retention) at reduced voltage (4.2 V), showing better stability at higher voltage. Spectroscopic characterization reveals equivalent bulk oxidation states while surface analysis demonstrates pronounced compositional dependence in frontier orbital configurations near the Fermi level. Surface-sensitive analyses reveal suppressed electron population density in SC-NCM613, substantially constraining rock-salt phase propagation depth in SC-NCM811. These findings suggest that rational electronic structure engineering provides a more effective approach than conventional compositional maximization, enabling competitive electrochemical performance while maintaining high energy density requirements.
层状氧化物阴极的界面降解机制是先进锂离子系统的基本限制,然而,系统区分大块晶体应变和电子结构介导的界面不稳定性仍然具有挑战性。通过对等效电化学条件下单晶LiNi0.6Co0.1Mn0.3O2 (SC-NCM613)和LiNi0.8Co0.1Mn0.1O2 (SC-NCM811)的比较研究,我们证明了性能差异源于电极-电解质界面的成分依赖的电子结构调制,而不是传统的电压约束。与传统预期相反,单晶NCM613在高电压(4.35 V)下比NCM811在低电压(4.2 V)下(84.1%)具有更好的容量保持率(1000次循环后86.8%),在高电压下表现出更好的稳定性。光谱表征揭示了等效的体氧化态,而表面分析表明在费米能级附近的前沿轨道构型中明显的成分依赖性。表面敏感分析表明,SC-NCM613中的电子居群密度受到抑制,极大地限制了SC-NCM811中岩盐相的传播深度。这些发现表明,合理的电子结构工程提供了比传统的成分最大化更有效的方法,在保持高能量密度要求的同时实现具有竞争力的电化学性能。
{"title":"Interfacial stability Enhancement in Single-Crystal NCM cathodes through electronic structure optimization","authors":"Boseong Heo ,&nbsp;Miseung Kim ,&nbsp;Chihyun Hwang ,&nbsp;Hyun Woo Kim ,&nbsp;Minwook Pin ,&nbsp;Beom Tak Na ,&nbsp;Jin Bae Lee ,&nbsp;Chul-u Bak ,&nbsp;Jun Young Cheong ,&nbsp;Seung-Ho Yu ,&nbsp;Joon Ha Chang ,&nbsp;Hyun-seung Kim ,&nbsp;Youngjin Kim","doi":"10.1016/j.mattod.2025.10.006","DOIUrl":"10.1016/j.mattod.2025.10.006","url":null,"abstract":"<div><div>Interfacial degradation mechanisms in layered oxide cathodes represent fundamental limitations for advanced lithium-ion systems, yet systematic differentiation between bulk crystallographic strain and electronic structure-mediated interfacial instability remains challenging. Through comparative investigation of single-crystal LiNi<sub>0.6</sub>Co<sub>0.1</sub>Mn<sub>0.3</sub>O<sub>2</sub> (SC-NCM613) and LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> (SC-NCM811) under equivalent electrochemical conditions, we demonstrate that performance differentiation originates from composition-dependent electronic structure modulation at electrode–electrolyte interfaces rather than conventional voltage constraints. Contrary to conventional expectations, single-crystal NCM613 achieves superior capacity retention (86.8 % after 1,000 cycles) at elevated voltage (4.35 V) compared to NCM811 (84.1 % retention) at reduced voltage (4.2 V), showing better stability at higher voltage. Spectroscopic characterization reveals equivalent bulk oxidation states while surface analysis demonstrates pronounced compositional dependence in frontier orbital configurations near the Fermi level. Surface-sensitive analyses reveal suppressed electron population density in SC-NCM613, substantially constraining rock-salt phase propagation depth in SC-NCM811. These findings suggest that rational electronic structure engineering provides a more effective approach than conventional compositional maximization, enabling competitive electrochemical performance while maintaining high energy density requirements.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 322-333"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145414999","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}
引用次数: 0
Unravelling the stablization effect of flourination on the interface and bulk phase of electrodes in all-solid-state lithium metal batteries 氟化对全固态锂金属电池界面和体相电极的稳定作用
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.08.019
Ziling Jiang , Siwu Li , Jie Yang , Miao Deng , Ziyu Lu , Zhenyu Wang , Lin Li , Feixiang Wu , Chuang Yu
Chlorine-rich argyrodite Li5.5PS4.5Cl1.5 (LPSCl) solid electrolyte exhibits exceptionally high Li-ion conductivity and is considered a highly promising candidate for all-solid-state lithium metal batteries (ASSLMBs). However, the compatibility issue with both the ultra-high-nickel cathode LiNi0.9Mn0.05Co0.05O2 (NCM955) and lithium metal anode remains a significant challenge. In this work, we propose a customized fluorination regulation strategy and systematically investigate the cross-scale mechanisms of fluorine in ASSLMBs. On the cathode side, it is discovered for the first time that, a LiF-doped electrolyte, Li5.5PS4.5Cl1.4F0.1 (LPSClF0.1), enables the penetration of F into the single-crystal NCM955 during cycling. These F partially substitute O2– in the lattice, modulating the local electronic structure and forming strong Ni–F bonds. This effectively increases the migration barrier for Ni2+, suppresses lattice oxygen activation, and reduces irreversible oxygen release, thereby enhancing the structural stability of the NCM955 cathode. On the anode side, LiF doping increases the critical current density of the electrolyte from 0.6 mA cm−2 to 3.1 mA cm−2. Furthermore, when paired with a molten SnF2-treated lithium metal—a fluorine-rich composite SEI composed of LiF, LiCl, and Li-Sn alloy can be obtained. This layer facilitates fast Li+ transport and homogenizes the electric field distribution, thereby balancing the local current density, regulating the nucleation and growth of Li, ultimately inhibiting the dendrite growth and ensuring highly reversible Li plating/stripping. Benefitting from the multilevel regulation of “atomic doping-bulk phase stabilization-interfacial engineering”, the assembled Li@SnF2|LPSClF0.1|NCM955 battery demonstrates a capacity retention of 80.6 % after 250 cycles at 0.5C (25 °C), and exhibits excellent performance at both –20 °C (0.1C) and 60 °C (0.5C). This work not only uncovers the synergistic roles of fluorination across atomic (bonding interactions), mesoscale (interfacial architecture), and macroscopic (battery performance) dimensions, but also establishes a universal design paradigm for bulk-interface synergy in wide-temperature-range, high–energy–density ASSLMBs.
富氯银柱石Li5.5PS4.5Cl1.5 (LPSCl)固体电解质具有非常高的锂离子电导率,被认为是全固态锂金属电池(asslmb)的极有前途的候选者。然而,超高镍阴极LiNi0.9Mn0.05Co0.05O2 (NCM955)和锂金属阳极的兼容性问题仍然是一个重大挑战。在这项工作中,我们提出了一种定制化的氟化调节策略,并系统地研究了氟在asslmb中的跨尺度机制。在阴极侧,首次发现掺有Li5.5PS4.5Cl1.4F0.1 (LPSClF0.1)的Li5.5PS4.5Cl1.4F0.1 (LPSClF0.1)可以使F-在循环过程中穿透到单晶NCM955中。这些F -部分取代了晶格中的O2 -,调制了局部电子结构并形成了强的Ni-F键。这有效地增加了Ni2+的迁移势垒,抑制了晶格氧的活化,减少了不可逆氧的释放,从而提高了NCM955阴极的结构稳定性。在阳极侧,LiF掺杂将电解液的临界电流密度从0.6 mA cm - 2提高到3.1 mA cm - 2。此外,当与熔融snf2处理的金属锂配对时,可以获得由LiF, LiCl和Li-Sn合金组成的富氟复合SEI。该层促进了Li+的快速输运,使电场分布均匀,从而平衡了局部电流密度,调节了Li的成核和生长,最终抑制了枝晶的生长,保证了Li的高可逆镀/剥离。得益于“原子掺杂-体相稳定-界面工程”的多层调控,组装的Li@SnF2|LPSClF0.1|NCM955电池在0.5℃(25℃)下循环250次后容量保持率为80.6%,在-20℃(0.1℃)和60℃(0.5℃)下均表现出优异的性能。这项工作不仅揭示了氟化在原子(键相互作用)、中尺度(界面结构)和宏观(电池性能)维度上的协同作用,而且还为宽温度范围、高能量密度asslbs的体界面协同作用建立了一个通用的设计范例。
{"title":"Unravelling the stablization effect of flourination on the interface and bulk phase of electrodes in all-solid-state lithium metal batteries","authors":"Ziling Jiang ,&nbsp;Siwu Li ,&nbsp;Jie Yang ,&nbsp;Miao Deng ,&nbsp;Ziyu Lu ,&nbsp;Zhenyu Wang ,&nbsp;Lin Li ,&nbsp;Feixiang Wu ,&nbsp;Chuang Yu","doi":"10.1016/j.mattod.2025.08.019","DOIUrl":"10.1016/j.mattod.2025.08.019","url":null,"abstract":"<div><div>Chlorine-rich argyrodite Li<sub>5.5</sub>PS<sub>4.5</sub>Cl<sub>1.5</sub> (LPSCl) solid electrolyte exhibits exceptionally high Li-ion conductivity and is considered a highly promising candidate for all-solid-state lithium metal batteries (ASSLMBs). However, the compatibility issue with both the ultra-high-nickel cathode LiNi<sub>0.9</sub>Mn<sub>0.05</sub>Co<sub>0.05</sub>O<sub>2</sub> (NCM955) and lithium metal anode remains a significant challenge. In this work, we propose a customized fluorination regulation strategy and systematically investigate the cross-scale mechanisms of fluorine in ASSLMBs. On the cathode side, it is discovered for the first time that, a LiF-doped electrolyte, Li<sub>5.5</sub>PS<sub>4.5</sub>Cl<sub>1.4</sub>F<sub>0.1</sub> (LPSClF<sub>0.1</sub>), enables the penetration of F<sup>–</sup> into the single-crystal NCM955 during cycling. These F<sup>–</sup> partially substitute O<sup>2–</sup> in the lattice, modulating the local electronic structure and forming strong Ni–F bonds. This effectively increases the migration barrier for Ni<sup>2+</sup>, suppresses lattice oxygen activation, and reduces irreversible oxygen release, thereby enhancing the structural stability of the NCM955 cathode. On the anode side, LiF doping increases the critical current density of the electrolyte from 0.6 mA cm<sup>−2</sup> to 3.1 mA cm<sup>−2</sup>. Furthermore, when paired with a molten SnF<sub>2</sub>-treated lithium metal—a fluorine-rich composite SEI composed of LiF, LiCl, and Li-Sn alloy can be obtained. This layer facilitates fast Li<sup>+</sup> transport and homogenizes the electric field distribution, thereby balancing the local current density, regulating the nucleation and growth of Li, ultimately inhibiting the dendrite growth and ensuring highly reversible Li plating/stripping. Benefitting from the multilevel regulation of “atomic doping-bulk phase stabilization-interfacial engineering”, the assembled Li@SnF<sub>2</sub>|LPSClF<sub>0.1</sub>|NCM955 battery demonstrates a capacity retention of 80.6 % after 250 cycles at 0.5C (25 °C), and exhibits excellent performance at both –20 °C (0.1C) and 60 °C (0.5C). This work not only uncovers the synergistic roles of fluorination across atomic (bonding interactions), mesoscale (interfacial architecture), and macroscopic (battery performance) dimensions, but also establishes a universal design paradigm for bulk-interface synergy in wide-temperature-range, high–energy–density ASSLMBs.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 31-42"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415126","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}
引用次数: 0
Facilitating direct presentation of tumor antigens to activate anti-tumor immunity by phototherapy-potentiated hybrid vaccine 促进肿瘤抗原的直接呈递,通过光疗增强杂交疫苗激活抗肿瘤免疫
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.09.025
Meng Suo , Ping Shangguan , Shiquan Deng , Yixiong Liu , Keke Wu , Shipeng Ning , Xing-Jie Liang , Ben Zhong Tang , Tianfu Zhang
Tumor vaccine has emerged as a promising immunotherapeutic agent for eradicating tumors. However, the immunosuppressive microenvironment within solid tumors significantly hinders these vaccines from eliciting long-lasting immunity, underscoring the need for novel strategies to revolutionize the approach to vaccine therapy. Herein, we propose a dual strategy involving donor group and fluorination engineering to develop an aggregation-induced emission phototherapeutic agent (BTS-2F). With high reactive oxygen species generation and photothermal conversion capabilities, BTS-2F nanoparticles (BNP) effectively eliminated both 4T1 breast cancer cells and E. coli by photodynamic therapy and photothermal therapy under 660 nm laser irradiation through the efficient intersystem crossing process, improving tumor antigen availability and thus generating the hybrid vaccine (BNP@HV). The bacterial component of BNP@HV acts as a potent immune inducer and adjuvant, facilitating high-quality tumor antigen cross-presenting and infiltrating in the lymph nodes after subcutaneous injection and provoking the STING pathway to activate dendritic cells. Consequently, strong and sustained T cell responses elicit anti-tumor immunity and establish lasting anti-tumor memory. Furthermore, BNP@HV can sensitize PD-1 checkpoint blockade therapy, stimulating the adaptive immune system of mice to inhibit tumor growth. This work provides a new paradigm for designing preventive and therapeutic tumor vaccines to enhance clinical efficacy.
肿瘤疫苗已成为一种很有前途的肿瘤免疫治疗药物。然而,实体瘤内的免疫抑制微环境极大地阻碍了这些疫苗产生持久的免疫,这强调了需要新的策略来彻底改变疫苗治疗方法。在此,我们提出了双重策略,包括供体基团和氟化工程,以开发聚集体诱导发射光治疗剂(BTS-2F)。BTS-2F纳米颗粒(BNP)具有较高的活性氧生成和光热转化能力,在660 nm激光照射下,通过高效的系统间交叉过程,通过光动力和光热治疗,有效地消除4T1乳腺癌细胞和大肠杆菌,提高肿瘤抗原的可用性,从而产生杂交疫苗(BNP@HV)。BNP@HV的细菌成分作为一种有效的免疫诱导剂和佐剂,促进高质量的肿瘤抗原在皮下注射后交叉递呈并浸润淋巴结,激发STING通路激活树突状细胞。因此,强烈和持续的T细胞反应引发抗肿瘤免疫并建立持久的抗肿瘤记忆。此外,BNP@HV可以使PD-1检查点阻断治疗增敏,刺激小鼠的适应性免疫系统抑制肿瘤生长。本研究为设计预防和治疗性肿瘤疫苗以提高临床疗效提供了新的思路。
{"title":"Facilitating direct presentation of tumor antigens to activate anti-tumor immunity by phototherapy-potentiated hybrid vaccine","authors":"Meng Suo ,&nbsp;Ping Shangguan ,&nbsp;Shiquan Deng ,&nbsp;Yixiong Liu ,&nbsp;Keke Wu ,&nbsp;Shipeng Ning ,&nbsp;Xing-Jie Liang ,&nbsp;Ben Zhong Tang ,&nbsp;Tianfu Zhang","doi":"10.1016/j.mattod.2025.09.025","DOIUrl":"10.1016/j.mattod.2025.09.025","url":null,"abstract":"<div><div>Tumor vaccine has emerged as a promising immunotherapeutic agent for eradicating tumors. However, the immunosuppressive microenvironment within solid tumors significantly hinders these vaccines from eliciting long-lasting immunity, underscoring the need for novel strategies to revolutionize the approach to vaccine therapy. Herein, we propose a dual strategy involving donor group and fluorination engineering to develop an aggregation-induced emission phototherapeutic agent (BTS-2F). With high reactive oxygen species generation and photothermal conversion capabilities, BTS-2F nanoparticles (BNP) effectively eliminated both 4T1 breast cancer cells and <em>E. coli</em> by photodynamic therapy and photothermal therapy under 660 nm laser irradiation through the efficient intersystem crossing process, improving tumor antigen availability and thus generating the hybrid vaccine (BNP@HV). The bacterial component of BNP@HV acts as a potent immune inducer and adjuvant, facilitating high-quality tumor antigen cross-presenting and infiltrating in the lymph nodes after subcutaneous injection and provoking the STING pathway to activate dendritic cells. Consequently, strong and sustained T cell responses elicit anti-tumor immunity and establish lasting anti-tumor memory. Furthermore, BNP@HV can sensitize PD-1 checkpoint blockade therapy, stimulating the adaptive immune system of mice to inhibit tumor growth. This work provides a new paradigm for designing preventive and therapeutic tumor vaccines to enhance clinical efficacy.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 270-284"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415132","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}
引用次数: 0
Pioneering next-generation mRNA therapeutics through molecular engineering and delivery optimization 通过分子工程和递送优化开拓下一代mRNA治疗
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.08.023
Lin Qi , Zhihong Li , Zunyong Feng , Jianping Liu , Xiaoyuan Chen
Driven by rapid advances in molecular engineering and delivery technology, mRNA therapeutics have transitioned from conceptual promise to clinical reality. Compared to DNA and protein therapies, mRNA therapeutics deliver the genetic instructions to the cells and enable protein expression only in the cytoplasm without the risk of genomic integration. Although early studies demonstrated the potential of in vitro transcribed mRNA to mediate protein expression in vivo, clinical translation was long impeded by its intrinsic instability, immunogenicity, and limited delivery efficiency. Recent breakthroughs in mRNA design, including sequence optimization, nucleoside modifications, and the development of self-amplifying or circular RNA platforms, have markedly improved translational efficiency while modulating innate immune activation. Parallel innovations in delivery systems such as lipid nanoparticle have further improved organ targeting and safety profiles. These developments have underpinned the unprecedented success of mRNA vaccines against COVID-19 and catalyzed broader therapeutic applications across infectious diseases, cancers, neurological disorders, and other diseases. Many of these approaches have demonstrated promising efficacy in preclinical models, with several advancing into clinical trials. This article highlights recent advances in mRNA engineering, delivery technologies, preclinical and clinical translation, providing an in-depth examination of the evolving mRNA therapeutic landscape and its potential to redefine next-generation precision medicine.
在分子工程和递送技术快速发展的推动下,mRNA疗法已经从概念上的承诺转变为临床现实。与DNA和蛋白质疗法相比,mRNA疗法将遗传指令传递给细胞,使蛋白质仅在细胞质中表达,而没有基因组整合的风险。尽管早期研究表明体外转录的mRNA有可能介导体内蛋白表达,但其固有的不稳定性、免疫原性和有限的传递效率长期阻碍了临床翻译。最近在mRNA设计方面的突破,包括序列优化、核苷修饰和自扩增或环状RNA平台的开发,在调节先天免疫激活的同时显著提高了翻译效率。脂质纳米颗粒等递送系统的平行创新进一步改善了器官靶向性和安全性。这些进展为抗击COVID-19的mRNA疫苗取得前所未有的成功奠定了基础,并促进了在传染病、癌症、神经系统疾病和其他疾病方面更广泛的治疗应用。其中许多方法在临床前模型中显示出有希望的疗效,其中一些已进入临床试验阶段。本文重点介绍了mRNA工程、递送技术、临床前和临床翻译方面的最新进展,深入研究了不断发展的mRNA治疗前景及其重新定义下一代精准医学的潜力。
{"title":"Pioneering next-generation mRNA therapeutics through molecular engineering and delivery optimization","authors":"Lin Qi ,&nbsp;Zhihong Li ,&nbsp;Zunyong Feng ,&nbsp;Jianping Liu ,&nbsp;Xiaoyuan Chen","doi":"10.1016/j.mattod.2025.08.023","DOIUrl":"10.1016/j.mattod.2025.08.023","url":null,"abstract":"<div><div>Driven by rapid advances in molecular engineering and delivery technology, mRNA therapeutics have transitioned from conceptual promise to clinical reality. Compared to DNA and protein therapies, mRNA therapeutics deliver the genetic instructions to the cells and enable protein expression only in the cytoplasm without the risk of genomic integration. Although early studies demonstrated the potential of <em>in vitro</em> transcribed mRNA to mediate protein expression <em>in vivo</em>, clinical translation was long impeded by its intrinsic instability, immunogenicity, and limited delivery efficiency. Recent breakthroughs in mRNA design, including sequence optimization, nucleoside modifications, and the development of self-amplifying or circular RNA platforms, have markedly improved translational efficiency while modulating innate immune activation. Parallel innovations in delivery systems such as lipid nanoparticle have further improved organ targeting and safety profiles. These developments have underpinned the unprecedented success of mRNA vaccines against COVID-19 and catalyzed broader therapeutic applications across infectious diseases, cancers, neurological disorders, and other diseases. Many of these approaches have demonstrated promising efficacy in preclinical models, with several advancing into clinical trials. This article highlights recent advances in mRNA engineering, delivery technologies, preclinical and clinical translation, providing an in-depth examination of the evolving mRNA therapeutic landscape and its potential to redefine next-generation precision medicine.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 466-494"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415206","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}
引用次数: 0
The key role of boron as a ‘Magical Element’ in polymer-derived boron-containing ceramics 硼作为一种“神奇元素”在聚合物衍生的含硼陶瓷中的关键作用
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.09.024
Wei Li , Jinxue Ding , Zhaoju Yu , Ralf Riedel
Boron, a versatile element, significantly controls the structural and functional properties of advanced polymer-derived ceramic (PDC) materials. Incorporating boron or boron compounds into the PDC matrix notably influences its thermochemical and thermophysical behavior. Since the development of thermally stable SiBCN ceramics (up to 1500–2000°C), the polymer-derived ceramic route has gained significant attention for producing boron-containing ceramics due to its distinct advantages over conventional powder ceramic technology. The PDC technology offers two key benefits: (1) the ability to tailor the chemical and phase composition of PDCs through molecular modification of the preceramic polymers, and (2) the processability of preceramic polymers by adjusting crosslinking and pyrolysis/annealing conditions. This review aims to comprehensively explore PDC processing strategies focused on boron-containing preceramic polymers and their resulting ceramic properties. For the first time, this review provides a comprehensive understanding of how boron influences the intrinsic functional and structural properties of advanced PDCs and provides perspectives for their potential applications. It critically assesses various synthesis approaches using preceramic polymers to produce boron-containing ceramics and related materials. The impact of boron on the derived ceramic microstructure and, in turn, on the properties of polymer-derived boron-containing ceramics are thoroughly discussed, considering both experimental and theoretical studies. Finally, potential advanced applications and future research directions centered on boron-containing PDCs are evaluated.
硼是一种多功能元素,对高级聚合物衍生陶瓷(PDC)材料的结构和功能性能有着重要的控制作用。在PDC基体中掺入硼或硼化合物会显著影响其热化学和热物理行为。由于热稳定的SiBCN陶瓷(高达1500-2000°C)的发展,聚合物衍生陶瓷路线由于其比传统粉末陶瓷技术具有明显的优势而获得了生产含硼陶瓷的显著关注。PDC技术提供了两个关键优势:(1)通过对预陶瓷聚合物进行分子修饰,可以定制预陶瓷聚合物的化学和相组成;(2)通过调整交联和热解/退火条件,可以调整预陶瓷聚合物的可加工性。本文旨在全面探讨以含硼预陶瓷聚合物为重点的PDC加工策略及其陶瓷性能。本文首次全面了解了硼如何影响先进pdc的内在功能和结构特性,并对其潜在的应用前景进行了展望。它批判性地评估了使用预陶瓷聚合物生产含硼陶瓷和相关材料的各种合成方法。从实验和理论两方面深入讨论了硼对衍生陶瓷微观结构的影响,进而对聚合物衍生含硼陶瓷性能的影响。最后,以含硼PDCs为中心,对其潜在的先进应用和未来的研究方向进行了展望。
{"title":"The key role of boron as a ‘Magical Element’ in polymer-derived boron-containing ceramics","authors":"Wei Li ,&nbsp;Jinxue Ding ,&nbsp;Zhaoju Yu ,&nbsp;Ralf Riedel","doi":"10.1016/j.mattod.2025.09.024","DOIUrl":"10.1016/j.mattod.2025.09.024","url":null,"abstract":"<div><div>Boron, a versatile element, significantly controls the structural and functional properties of advanced polymer-derived ceramic (PDC) materials. Incorporating boron or boron compounds into the PDC matrix notably influences its thermochemical and thermophysical behavior. Since the development of thermally stable SiBCN ceramics (up to 1500–2000°C), the polymer-derived ceramic route has gained significant attention for producing boron-containing ceramics due to its distinct advantages over conventional powder ceramic technology. The PDC technology offers two key benefits: (1) the ability to tailor the chemical and phase composition of PDCs through molecular modification of the preceramic polymers, and (2) the processability of preceramic polymers by adjusting crosslinking and pyrolysis/annealing conditions. This review aims to comprehensively explore PDC processing strategies focused on boron-containing preceramic polymers and their resulting ceramic properties. For the first time, this review provides a comprehensive understanding of how boron influences the intrinsic functional and structural properties of advanced PDCs and provides perspectives for their potential applications. It critically assesses various synthesis approaches using preceramic polymers to produce boron-containing ceramics and related materials. The impact of boron on the derived ceramic microstructure and, in turn, on the properties of polymer-derived boron-containing ceramics are thoroughly discussed, considering both experimental and theoretical studies. Finally, potential advanced applications and future research directions centered on boron-containing PDCs are evaluated.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 882-910"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415312","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}
引用次数: 0
Room temperature spin light-emitting diode based on chiral 2D superlattice 基于二维超晶格的室温自旋发光二极管
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.09.027
Aumber Abbas , Mujahid Mustaqeem , Jamal Kazmi , Ali Hassan , Taskeen Zahra , Muhammad Ahsan Iqbal , Mohammed Ashraf Gondal , Junfei Ou , Mojtaba Abdi-Jalebi
Room-temperature spin optoelectronics are poised to drive the next generation of spintronic devices, yet conventional approaches to control spin, charge, and light typically require both electrical and magnetic fields. The chiral-induced spin selectivity (CISS) effect has recently emerged as a promising platform for magnet-free spin control in chiral molecules. However, organic chiral systems often suffer from limitations in spin selectivity, polarization efficiency, and long-term stability, challenging the creation of robust, high-performance spintronic systems. Here, we present a magnet-free, room-temperature spin light-emitting diode (spin-LED) using a chiral two-dimensional (2D) superlattice to enable efficient and stable spin polarization via the CISS effect. The chiral superlattice is synthesized by intercalating layered 2D transition metal dichalcogenides (TMDs) with specific chiral molecules, creating a highly ordered superlattice of alternating crystalline atomic layers and self-assembled chiral molecular layers. The spin state of the injected charge carriers is polarized via the CISS effect as they pass through the chiral superlattice, resulting in a high relative spin polarization up to 90 %. These spin-polarized carriers recombine radiatively in the emission layer, producing circularly polarized electroluminescence (CP-EL). The resulting spin-LEDs exhibit a CP-EL polarization degree of ± 16.7 % and an external quantum efficiency of ∼ 18.9 % at room temperature, establishing a viable alternative to conventional spin-LED technologies. Notably, the strategy is extended to different TMDs, demonstrating comparable performance and highlighting the generalizability of the approach. This work establishes chiral 2D superlattices as a versatile platform for optospintronic applications, paving the way toward energy-efficient, magnet-free and room temperature spin-optoelectronic devices.
室温自旋光电子技术有望推动下一代自旋电子器件的发展,然而控制自旋、电荷和光的传统方法通常需要电场和磁场。近年来,手性诱导自旋选择性(CISS)效应成为手性分子无磁自旋控制的一个有前景的平台。然而,有机手性体系在自旋选择性、极化效率和长期稳定性方面经常受到限制,这对创建健壮、高性能的自旋电子系统提出了挑战。在这里,我们提出了一种无磁的室温自旋发光二极管(spin- led),使用手性二维(2D)超晶格,通过CISS效应实现高效和稳定的自旋极化。将层状二维过渡金属二硫族化合物(TMDs)与特定的手性分子嵌入,形成了由晶体原子层和自组装手性分子层交替构成的高度有序的超晶格。注入的载流子通过手性超晶格时,自旋态通过CISS效应发生极化,导致相对自旋极化高达90%。这些自旋极化载流子在发射层辐射重组,产生圆极化电致发光(CP-EL)。由此产生的自旋led在室温下的CP-EL极化度为±16.7%,外量子效率为~ 18.9%,为传统的自旋led技术建立了可行的替代方案。值得注意的是,该策略被扩展到不同的tmd,展示了可比较的性能并突出了该方法的通用性。这项工作建立了手性二维超晶格作为光自旋电子应用的通用平台,为节能,无磁和室温自旋光电器件铺平了道路。
{"title":"Room temperature spin light-emitting diode based on chiral 2D superlattice","authors":"Aumber Abbas ,&nbsp;Mujahid Mustaqeem ,&nbsp;Jamal Kazmi ,&nbsp;Ali Hassan ,&nbsp;Taskeen Zahra ,&nbsp;Muhammad Ahsan Iqbal ,&nbsp;Mohammed Ashraf Gondal ,&nbsp;Junfei Ou ,&nbsp;Mojtaba Abdi-Jalebi","doi":"10.1016/j.mattod.2025.09.027","DOIUrl":"10.1016/j.mattod.2025.09.027","url":null,"abstract":"<div><div>Room-temperature spin optoelectronics are poised to drive the next generation of spintronic devices, yet conventional approaches to control spin, charge, and light typically require both electrical and magnetic fields. The chiral-induced spin selectivity (CISS) effect has recently emerged as a promising platform for magnet-free spin control in chiral molecules. However, organic chiral systems often suffer from limitations in spin selectivity, polarization efficiency, and long-term stability, challenging the creation of robust, high-performance spintronic systems. Here, we present a magnet-free, room-temperature spin light-emitting diode (spin-LED) using a chiral two-dimensional (2D) superlattice to enable efficient and stable spin polarization via the CISS effect. The chiral superlattice is synthesized by intercalating layered 2D transition metal dichalcogenides (TMDs) with specific chiral molecules, creating a highly ordered superlattice of alternating crystalline atomic layers and self-assembled chiral molecular layers. The spin state of the injected charge carriers is polarized via the CISS effect as they pass through the chiral superlattice, resulting in a high relative spin polarization up to 90 %. These spin-polarized carriers recombine radiatively in the emission layer, producing circularly polarized electroluminescence (CP-EL). The resulting spin-LEDs exhibit a CP-EL polarization degree of ± 16.7 % and an external quantum efficiency of ∼ 18.9 % at room temperature, establishing a viable alternative to conventional spin-LED technologies. Notably, the strategy is extended to different TMDs, demonstrating comparable performance and highlighting the generalizability of the approach. This work establishes chiral 2D superlattices as a versatile platform for optospintronic applications, paving the way toward energy-efficient, magnet-free and room temperature spin-optoelectronic devices.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 285-296"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145414986","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}
引用次数: 0
Hole mobility in compressively strained germanium on silicon exceeds 7 × 106 cm2V-1s−1 硅上压缩应变锗的空穴迁移率超过7 × 106 cm2V-1s−1
IF 22 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2025-11-01 DOI: 10.1016/j.mattod.2025.10.004
Maksym Myronov , Alex Bogan , Sergei Studenikin
The concurrent achievement of the record-low resistance charge transport and compatibility with spin qubit technology in solid-state materials is a critical milestone for advancing high-speed, energy-efficient classical and quantum electronics technologies. Here, we demonstrate that holes, the positively charged counterparts of electrons, can propagate with exceptional ease in a nanometres-thin compressively strained germanium layer epitaxially grown on a silicon substrate. Through precise material engineering, we achieve a record-breaking hole mobility of 7.15 × 106 cm2V-1s−1 at a density of 1.7 × 1011 cm−2, establishing a new benchmark for hole transport in group-IV semiconductor materials, importantly, epitaxially grown on a silicon substrate. Our work outlines a design strategy for realising an ultra-clean, low-dimensional system that confines highly mobile holes within a quantum well, while maintaining excellent electrostatic tunability. Crucially, the observed high hole mobility is achieved in gated Hall-bar devices, demonstrating their practical viability for scalable cryogenic classical and quantum electronics applications. These findings unlock new opportunities for a high-performance semiconductor platform capable of underpinning the next generation of quantum information processing, cloud data centres, AI-driven technologies and energy-efficient electronics.
在固态材料中同时实现创纪录的低电阻电荷输运和与自旋量子比特技术的兼容性,是推进高速、节能的经典和量子电子技术的重要里程碑。在这里,我们证明了空穴,电子的正电荷对应物,可以在外延生长在硅衬底上的纳米薄压缩应变锗层中非常容易地传播。通过精确的材料工程,我们在1.7 × 1011 cm−2的密度下实现了破纪录的7.15 × 106 cm2V-1s−1的空穴迁移率,为iv族半导体材料的空穴迁移建立了新的基准,重要的是,在硅衬底上外延生长。我们的工作概述了实现超清洁、低维系统的设计策略,该系统将高度移动的空穴限制在量子阱内,同时保持出色的静电可调性。关键是,观察到的高空穴迁移率是在门控霍尔棒器件中实现的,证明了它们在可扩展的低温经典和量子电子学应用中的实际可行性。这些发现为高性能半导体平台开启了新的机遇,该平台能够支持下一代量子信息处理、云数据中心、人工智能驱动技术和节能电子产品。
{"title":"Hole mobility in compressively strained germanium on silicon exceeds 7 × 106 cm2V-1s−1","authors":"Maksym Myronov ,&nbsp;Alex Bogan ,&nbsp;Sergei Studenikin","doi":"10.1016/j.mattod.2025.10.004","DOIUrl":"10.1016/j.mattod.2025.10.004","url":null,"abstract":"<div><div>The concurrent achievement of the record-low resistance charge transport and compatibility with spin qubit technology in solid-state materials is a critical milestone for advancing high-speed, energy-efficient classical and quantum electronics technologies. Here, we demonstrate that holes, the positively charged counterparts of electrons, can propagate with exceptional ease in a nanometres-thin compressively strained germanium layer epitaxially grown on a silicon substrate. Through precise material engineering, we achieve a record-breaking hole mobility of 7.15 × 10<sup>6</sup> cm<sup>2</sup>V<sup>-1</sup>s<sup>−1</sup> at a density of 1.7 × 10<sup>11</sup> cm<sup>−2</sup>, establishing a new benchmark for hole transport in group-IV semiconductor materials, importantly, epitaxially grown on a silicon substrate. Our work outlines a design strategy for realising an ultra-clean, low-dimensional system that confines highly mobile holes within a quantum well, while maintaining excellent electrostatic tunability. Crucially, the observed high hole mobility is achieved in gated Hall-bar devices, demonstrating their practical viability for scalable cryogenic classical and quantum electronics applications. These findings unlock new opportunities for a high-performance semiconductor platform capable of underpinning the next generation of quantum information processing, cloud data centres, AI-driven technologies and energy-efficient electronics.</div></div>","PeriodicalId":387,"journal":{"name":"Materials Today","volume":"90 ","pages":"Pages 314-321"},"PeriodicalIF":22.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145414996","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}
引用次数: 0
期刊
Materials Today
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1