Matter最新文献

英文中文

Atomic-scale dynamics of a bulk-diffusion-driven nonconservative phase transformation in vapor-phase dealloying 气相合金中体扩散驱动的非保守相变的原子尺度动力学

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102601

Xinyao Wang , Lei Ying , Yanying Li , Qing Chen , Jiuhui Han , Yuqiao Zeng , Hao Du , Yi Gao , Fuqiang Huang , Mingwei Chen , Pan Liu

Solid-state phase transformations (SSPTs) during dealloying dictate the evolution of nanoporous architectures, yet their atomic-scale mechanisms remain elusive due to the dominance of classical surface-diffusion models. Here, by combining vapor-phase dealloying with aberration-corrected transmission electron microscopy, we directly uncover a nonconservative SSPT pathway in a Co-Zn alloy, governed by bulk diffusion rather than interfacial kinetics. Real-time tracking reveals a transformation cascade: initial Zn sublimation triggers the formation of a metastable Zn-deficient intermediate (γ-CoZn-vac), a derivative of the parent γ-CoZn lattice, followed by atomic column merging and lattice relaxation into α-Co. We further mapped Zn bulk-diffusion trajectories driven by chemical potential gradients and identified crystal planes selectively prone to reconfiguration. This work challenges the long-held assumption that dealloying relies solely on surface dynamics, establishing bulk atomic diffusion as a universal driver for nonconservative phase transformations. Our findings may provide the theoretical framework for designing functional nanoporous materials through vacancy-mediated engineering.

脱合金过程中的固态相变（SSPTs）决定了纳米孔结构的演变，但由于经典表面扩散模型的主导地位，其原子尺度机制仍然难以捉摸。在这里，通过结合气相脱合金和像差校正透射电子显微镜，我们直接揭示了Co-Zn合金中的非保守SSPT途径，该途径由体扩散而不是界面动力学控制。实时跟踪揭示了一个转化级联过程：初始Zn升华触发亚稳Zn亏缺中间体（γ-CoZn-vac）的形成，这是母体γ-CoZn晶格的衍生物，随后原子柱合并和晶格弛豫形成α-Co。我们进一步绘制了由化学势梯度驱动的锌体扩散轨迹，并确定了选择性地倾向于重新配置的晶体平面。这项工作挑战了长期以来的假设，即合金化仅依赖于表面动力学，建立了大块原子扩散作为非保守相变的普遍驱动因素。我们的发现可能为通过空缺介导工程设计功能纳米多孔材料提供理论框架。

{"title":"Atomic-scale dynamics of a bulk-diffusion-driven nonconservative phase transformation in vapor-phase dealloying","authors":"Xinyao Wang , Lei Ying , Yanying Li , Qing Chen , Jiuhui Han , Yuqiao Zeng , Hao Du , Yi Gao , Fuqiang Huang , Mingwei Chen , Pan Liu","doi":"10.1016/j.matt.2025.102601","DOIUrl":"10.1016/j.matt.2025.102601","url":null,"abstract":"<div><div>Solid-state phase transformations (SSPTs) during dealloying dictate the evolution of nanoporous architectures, yet their atomic-scale mechanisms remain elusive due to the dominance of classical surface-diffusion models. Here, by combining vapor-phase dealloying with aberration-corrected transmission electron microscopy, we directly uncover a nonconservative SSPT pathway in a Co-Zn alloy, governed by bulk diffusion rather than interfacial kinetics. Real-time tracking reveals a transformation cascade: initial Zn sublimation triggers the formation of a metastable Zn-deficient intermediate (γ-CoZn-vac), a derivative of the parent γ-CoZn lattice, followed by atomic column merging and lattice relaxation into α-Co. We further mapped Zn bulk-diffusion trajectories driven by chemical potential gradients and identified crystal planes selectively prone to reconfiguration. This work challenges the long-held assumption that dealloying relies solely on surface dynamics, establishing bulk atomic diffusion as a universal driver for nonconservative phase transformations. Our findings may provide the theoretical framework for designing functional nanoporous materials through vacancy-mediated engineering.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102601"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116749","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

Contextualized synthesis of phenanthroline-based isomeric linkers at heterointerfaces enables stable inverted perovskite solar cells 在异质界面上合成邻菲罗啉基异构体连接剂可以实现稳定的倒钙钛矿太阳能电池

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102525

Shujie Qu , Changxu Sun , Fu Yang , Hao Huang , Shuxian Du , Tongtong Jiang , Qiang Zhang , Luyao Yan , Zhineng Lan , Yingying Yang , Zhiwei Wang , Peng Cui , Meicheng Li

The commercialization of inverted perovskite solar cells (PSCs) is urgently limited by stability, an issue closely related to the heterointerface. In this work, we rationally synthesized two phenanthroline-based isomers—2-(3,4-dimethoxyphenyl)-1,10-phenanthroline (J2) and 5-(3,4-dimethoxyphenyl)-1,10-phenanthroline (J5)—as novel interfacial modifiers to enhance the interface stability. The J2 with co-directional binding sites was incorporated into [6,6]-phenyl-C₆₁-butyric acid methyl ester (PCBM) to interact with it in a π-π manner and coordinate with perovskite, strengthening the interface adhesion. The J5 with opposite-directional binding sites was incorporated into MeO-4PACz to π-π interact with it and coordinate with the FTO substrate and perovskite, respectively, thus stabilizing MeO-4PACz and reinforcing interface. Owing to the improved interfacial mechanical durability and reduced interfacial carrier recombination, the 0.08 cm²-PSC and 1 cm²-PSC achieved efficiencies of 26.55% and 25.00%, respectively. Moreover, unencapsulated devices can retain 92% of their initial efficiency after operating 3,000 h under continuous 1-sun illumination and 91% after 150 harsh thermal cycles.

稳定性是制约倒钙钛矿太阳能电池（PSCs）商业化的重要因素，而稳定性是与异质界面密切相关的问题。本文合理合成了2-（3,4-二甲氧基苯基）-1,10-菲罗啉（J2）和5-（3,4-二甲氧基苯基）-1,10-菲罗啉（J5）两种邻菲罗啉异构体作为新型界面改性剂，提高了界面稳定性。将具有共向结合位点的J2掺入[6,6]-苯基- c₆₁-丁酸甲酯（PCBM）中，以π-π方式与之相互作用，并与钙钛矿配位，增强了界面附着力。将具有相反方向结合位点的J5加入到MeO-4PACz中，使π-π与MeO-4PACz相互作用，并分别与FTO底物和钙钛矿配位，从而稳定MeO-4PACz并增强界面。0.08 cm - psc和1 cm - psc的效率分别为26.55%和25.00%，这是由于提高了界面力学耐久性和减少了界面载流子复合。此外，未封装的设备在连续1个太阳照射下运行3000小时后可以保持92%的初始效率，在150次严酷的热循环后可以保持91%的初始效率。

{"title":"Contextualized synthesis of phenanthroline-based isomeric linkers at heterointerfaces enables stable inverted perovskite solar cells","authors":"Shujie Qu , Changxu Sun , Fu Yang , Hao Huang , Shuxian Du , Tongtong Jiang , Qiang Zhang , Luyao Yan , Zhineng Lan , Yingying Yang , Zhiwei Wang , Peng Cui , Meicheng Li","doi":"10.1016/j.matt.2025.102525","DOIUrl":"10.1016/j.matt.2025.102525","url":null,"abstract":"<div><div>The commercialization of inverted perovskite solar cells (PSCs) is urgently limited by stability, an issue closely related to the heterointerface. In this work, we rationally synthesized two phenanthroline-based isomers—2-(3,4-dimethoxyphenyl)-1,10-phenanthroline (J2) and 5-(3,4-dimethoxyphenyl)-1,10-phenanthroline (J5)—as novel interfacial modifiers to enhance the interface stability. The J2 with co-directional binding sites was incorporated into [6,6]-phenyl-C₆₁-butyric acid methyl ester (PCBM) to interact with it in a π-π manner and coordinate with perovskite, strengthening the interface adhesion. The J5 with opposite-directional binding sites was incorporated into MeO-4PACz to π-π interact with it and coordinate with the FTO substrate and perovskite, respectively, thus stabilizing MeO-4PACz and reinforcing interface. Owing to the improved interfacial mechanical durability and reduced interfacial carrier recombination, the 0.08 cm<sup>2</sup>-PSC and 1 cm<sup>2</sup>-PSC achieved efficiencies of 26.55% and 25.00%, respectively. Moreover, unencapsulated devices can retain 92% of their initial efficiency after operating 3,000 h under continuous 1-sun illumination and 91% after 150 harsh thermal cycles.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102525"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145594078","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

High-spatial-resolution, melt-cast perovskite X-ray imager 高空间分辨率，熔铸钙钛矿x射线成像仪

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102600

Vitalii Bartosh , Kostiantyn Sakhatskyi , Gebhard J. Matt , Andrii Kanak , Aditya Bhardwaj , Lorenzo J.A. Ferraresi , Sergii Yakunin , Maksym V. Kovalenko

The key asset of X-ray medical imaging lies in detecting fine features, governed by detector spatial resolution and high detection efficiency. Metal halide perovskites are emerging semiconductors with potential to exceed state-of-the-art direct-conversion and scintillation materials, featuring ∼10 lp mm⁻¹ spatial resolution. Yet, integrating high-quality perovskite layers with readout arrays remains challenging. Here, we demonstrate fabrication of thick, large-grain polycrystalline CsPbBr₃ films by melting directly on pixelated glass interposers. The obtained array detectors show a remarkable 20 lp mm⁻¹ intrinsic spatial resolution at MTF20, detection efficiency of 75.4%, and a low noise-equivalent dose of ∼46 photons for 22 keV X-rays under low reverse bias. These features enable unprecedented charge-integrating performance with 20% detective quantum efficiency at the Nyquist frequency. Single-pixel devices show single-photon counting of γ-radiation, resolving the 60 keV ²⁴¹Am peak. Melt-grown CsPbBr₃ films thus uniquely combine detection efficiency, scalability, and cost-effectiveness for next-generation low-dose, high-resolution X-ray imaging.

x射线医学成像的关键在于检测精细特征，这取决于探测器的空间分辨率和检测效率。金属卤化物钙钛矿是一种新兴的半导体，具有超过最先进的直接转换和闪烁材料的潜力，具有~ 10 lp mm−1的空间分辨率。然而，将高质量的钙钛矿层与读出阵列集成仍然具有挑战性。在这里，我们展示了通过直接熔化像素化玻璃中间层来制造厚的、大晶粒的多晶CsPbBr3薄膜。所获得的阵列探测器在MTF20下具有显著的20 lp mm−1的固有空间分辨率，探测效率为75.4%，低反向偏置下22 keV x射线的低噪声等效剂量为~ 46光子。这些特性在奈奎斯特频率下实现了前所未有的电荷集成性能和20%的探测量子效率。单像素器件显示γ辐射的单光子计数，解析60 keV 241Am峰值。因此，熔融生长的CsPbBr3薄膜独特地结合了检测效率、可扩展性和成本效益，可用于下一代低剂量、高分辨率x射线成像。

{"title":"High-spatial-resolution, melt-cast perovskite X-ray imager","authors":"Vitalii Bartosh , Kostiantyn Sakhatskyi , Gebhard J. Matt , Andrii Kanak , Aditya Bhardwaj , Lorenzo J.A. Ferraresi , Sergii Yakunin , Maksym V. Kovalenko","doi":"10.1016/j.matt.2025.102600","DOIUrl":"10.1016/j.matt.2025.102600","url":null,"abstract":"<div><div>The key asset of X-ray medical imaging lies in detecting fine features, governed by detector spatial resolution and high detection efficiency. Metal halide perovskites are emerging semiconductors with potential to exceed state-of-the-art direct-conversion and scintillation materials, featuring ∼10 lp mm<sup>−1</sup> spatial resolution. Yet, integrating high-quality perovskite layers with readout arrays remains challenging. Here, we demonstrate fabrication of thick, large-grain polycrystalline CsPbBr<sub>3</sub> films by melting directly on pixelated glass interposers. The obtained array detectors show a remarkable 20 lp mm<sup>−1</sup> intrinsic spatial resolution at MTF20, detection efficiency of 75.4%, and a low noise-equivalent dose of ∼46 photons for 22 keV X-rays under low reverse bias. These features enable unprecedented charge-integrating performance with 20% detective quantum efficiency at the Nyquist frequency. Single-pixel devices show single-photon counting of γ-radiation, resolving the 60 keV <sup>241</sup>Am peak. Melt-grown CsPbBr<sub>3</sub> films thus uniquely combine detection efficiency, scalability, and cost-effectiveness for next-generation low-dose, high-resolution X-ray imaging.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102600"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116705","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

Programmable vector-responsive magnetorheological fibers for smart textiles 用于智能纺织品的可编程矢量响应磁流变纤维

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102637

Rui Guo , Xinkai Xu , Jun Chen

Recent developments in magneto-responsive fibrous systems reveal their potential for programmable, large-amplitude actuation through the integration of soft-magnetic mechanics with hierarchical textile architectures. By enabling vector-dependent bending and stiffening across yarn and fabric levels, these structures offer a versatile platform for next-generation smart textiles.

磁响应纤维系统的最新发展表明，通过将软磁力学与分层纺织结构相结合，它们具有可编程、大振幅驱动的潜力。通过在纱线和织物层面上实现矢量相关的弯曲和硬化，这些结构为下一代智能纺织品提供了一个多功能平台。

引用次数: 0

Standing surface wave for anapole 模拟波的驻面波

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102548

Ruiguang Peng , Jingda Wen , Yuner Gan , Yingyi Qi , Man Nie , Qian Zhao

Radiationless anapole supports a new possibility for controlling light in subwavelength photonic structures. However, achieving a pure anapole condition still remains fairly challenging, let alone attaining its dynamic tunability. Here, we report anapole excitation under a standing surface wave illumination for the first time. Specifically, when introducing the plasmonic structured light, multipoles with opposite scattering parity can be selectively excited by simply changing the incident linear polarization direction, achieving the polarization-controlled fast modulation between radiationless anapole and resonant radiating state. Moreover, it is revealed that increasing the rotation symmetry of the standing wave configuration further suppresses the higher-order multipoles and improves the purity of the anapole state. Our work suggests a flexible platform for tailoring the electromagnetic excitations and dynamic switch of radiating states by the unique combination of plasmonic structured light and dielectric resonator, which may shed new light on Mie-resonant nanophotonics and find applications in meta-optics devices.

无辐射拟极点为控制亚波长光子结构中的光提供了新的可能性。然而，实现纯拟极点条件仍然是相当具有挑战性的，更不用说实现其动态可调性了。本文首次报道了驻表面波照射下的拟极点激发。具体来说，当引入等离子体结构光时，只需改变入射线极化方向，就可以选择性地激发具有相反散射宇称的多极子，实现无辐射模拟极子与共振辐射态之间的极化控制快速调制。此外，增加驻波构型的旋转对称性进一步抑制了高阶多极，提高了赝偶极态的纯度。我们的工作提出了一个灵活的平台，可以通过等离子体结构光和介电谐振腔的独特组合来定制电磁激励和辐射状态的动态切换，这可能为米谐振纳米光子学提供新的思路，并在元光学器件中找到应用。

引用次数: 0

Simultaneously enhancing plasticity and load-bearing capacity by ionic crosslink for strong and conductive wet-spun graphene fibers 同时通过离子交联增强强导电性湿纺石墨烯纤维的塑性和承载能力

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102517

Gangfeng Cai , Ziqiu Wang , Peng Li , Kai Shen , Qichen Yin , Xuan Ye , Yingjun Liu , Dan Chang , Yilun Liu , Huasong Qin , Zhen Xu , Chao Gao

Plastic processing allows re-aligning molecules to improve the mechanical and electrical properties of wet-spun fibers, such as polyacrylonitrile fibers and graphene fibers (GFs). Specifically, the plasticity of graphene assembly is achieved by weakening the interlayer interaction via intercalating plasticizers. However, the plastic deformation is far lower than traditional wet-spun synthetic fibers, limiting the alignment of graphene sheets and resulting in inferior mechanical/electrical properties of GFs. Here, we demonstrate that strengthening interlayer crosslinks paradoxically improves both plasticity and load-bearing capacity in plasticized graphene oxide fibers (GOFs), achieving 17-fold greater deformability than nascent GOFs. This enhanced plasticity enables defect minimization and crystalline optimization through continuous stretching, yielding GFs with exceptional mechanical strength (tensile strength of 3.81 GPa and Young’s modulus of 509.5 GPa) and high electrical conductivity (3.23 × 10³ S cm⁻¹). The woven textiles using GFs have outstanding electromagnetic interference shielding performance.

塑料加工允许重新排列分子，以改善湿纺纤维的机械和电气性能，如聚丙烯腈纤维和石墨烯纤维（GFs）。具体来说，石墨烯组件的可塑性是通过嵌入增塑剂削弱层间相互作用来实现的。然而，GFs的塑性变形远低于传统湿纺合成纤维，这限制了石墨烯片的排列，导致GFs的机械/电气性能较差。在这里，我们证明了强化层间交联矛盾地提高了塑化氧化石墨烯纤维（GOFs）的塑性和承载能力，实现了比新生的GOFs高17倍的变形能力。通过连续拉伸，这种增强的可塑性使缺陷最小化和晶体优化成为可能，从而产生具有优异机械强度（抗拉强度为3.81 GPa，杨氏模量为509.5 GPa）和高导电性（3.23 × 103 S cm−1）的GFs。使用GFs的机织纺织品具有优异的电磁干扰屏蔽性能。

{"title":"Simultaneously enhancing plasticity and load-bearing capacity by ionic crosslink for strong and conductive wet-spun graphene fibers","authors":"Gangfeng Cai , Ziqiu Wang , Peng Li , Kai Shen , Qichen Yin , Xuan Ye , Yingjun Liu , Dan Chang , Yilun Liu , Huasong Qin , Zhen Xu , Chao Gao","doi":"10.1016/j.matt.2025.102517","DOIUrl":"10.1016/j.matt.2025.102517","url":null,"abstract":"<div><div>Plastic processing allows re-aligning molecules to improve the mechanical and electrical properties of wet-spun fibers, such as polyacrylonitrile fibers and graphene fibers (GFs). Specifically, the plasticity of graphene assembly is achieved by weakening the interlayer interaction via intercalating plasticizers. However, the plastic deformation is far lower than traditional wet-spun synthetic fibers, limiting the alignment of graphene sheets and resulting in inferior mechanical/electrical properties of GFs. Here, we demonstrate that strengthening interlayer crosslinks paradoxically improves both plasticity and load-bearing capacity in plasticized graphene oxide fibers (GOFs), achieving 17-fold greater deformability than nascent GOFs. This enhanced plasticity enables defect minimization and crystalline optimization through continuous stretching, yielding GFs with exceptional mechanical strength (tensile strength of 3.81 GPa and Young’s modulus of 509.5 GPa) and high electrical conductivity (3.23 × 10<sup>3</sup> S cm<sup>−1</sup>). The woven textiles using GFs have outstanding electromagnetic interference shielding performance.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102517"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145382237","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

Carbon nanomaterials with atomic precision: Spin chains from Heisenberg to Haldane-Shastry 原子精度的碳纳米材料：自旋链从海森堡到Haldane-Shastry

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102627

Rob Klabbers , C.-A. Palma

The zero-field, low-energy spectrum of recently realized isotropic spin chains could be explained by a family of exactly solvable models and is expected to exhibit anyonic behavior of their spinon excitations.

最近实现的各向同性自旋链的零场、低能谱可以用一系列精确可解的模型来解释，并且有望表现出自旋激发的任意子行为。

引用次数: 0

Designing resilient hydrogels: Strategies for minimizing hysteresis while maximizing toughness 设计弹性水凝胶：最小化迟滞同时最大化韧性的策略

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102489

Shaowei Han , Linlong Xing , Yongxin Qin , Caofeng Pan

Hydrogels, three-dimensional crosslinked polymer networks with high water content, have attracted significant attention in flexible electronics owing to their tissue-like mechanical properties, tunable electrical behavior, and excellent biocompatibility. However, achieving both low hysteresis and high toughness remains a significant challenge, as these properties are often mutually exclusive. This review summarizes design strategies to address this limitation by emphasizing the importance of maintaining network integrity and uniform stress distribution. Approaches such as optimizing network structures, modifying crosslinking mechanisms, incorporating nanostructures, and introducing higher-order architectures are discussed. The potential applications of these hydrogels in sensors, energy-harvesting devices, supercapacitors, and bioelectronics are highlighted, along with future challenges. This work aims to guide the development of high-performance hydrogels and advance their practical use in flexible electronic devices.

水凝胶是一种具有高含水量的三维交联聚合物网络，由于其类组织的机械性能、可调节的电学行为和优异的生物相容性，在柔性电子领域引起了广泛的关注。然而，实现低迟滞和高韧性仍然是一个重大挑战，因为这些性能通常是相互排斥的。本文通过强调保持网络完整性和均匀应力分布的重要性，总结了解决这一限制的设计策略。讨论了优化网络结构、修改交联机制、结合纳米结构和引入高阶结构等方法。强调了这些水凝胶在传感器、能量收集设备、超级电容器和生物电子学中的潜在应用，以及未来的挑战。这项工作旨在指导高性能水凝胶的发展，并推进其在柔性电子器件中的实际应用。

引用次数: 0

Kinetics and mechanism of light-driven methane decomposition on nickel/nitrogen-doped multiwalled carbon nanotubes 掺杂镍/氮多壁碳纳米管驱动甲烷分解动力学及机理

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102579

Jessica Ye , Abdelaziz Gouda , Loki Piper , Tamlyn Yue-Dan Slocombe , Otavio Titton Dias , Rui Song , Geoffrey Ozin , Mohini Sain

Photocatalytic methane decomposition (PCMD) presents a compelling pathway for CO₂-free hydrogen production. Here, we report a nitrogen-doped multiwalled carbon nanotube-supported nickel catalyst (1% Ni/N-MWCNT) that enables efficient light-driven methane decomposition under solar-simulated irradiation and at bulk temperatures significantly lower than those required for thermal methane decomposition. The catalyst produces only hydrogen gas and a solid carbon by-product, outperforming both higher Ni loadings and unsupported Ni nanoparticles, and demonstrates the promise of defected carbon supports in PCMD materials. Kinetic analyses through simple partial pressure experiments reveal that the reaction proceeds via a predominantly photothermal mechanism, with the first C–H bond activation identified as the best fit as the rate-determining step.

光催化甲烷分解（PCMD）为无二氧化碳制氢提供了一条引人注目的途径。在这里，我们报道了一种氮掺杂多壁碳纳米管负载的镍催化剂（1% Ni/N-MWCNT），该催化剂可以在太阳模拟辐射下实现高效的光驱动甲烷分解，并且体积温度明显低于甲烷热分解所需的温度。该催化剂仅产生氢气和固体碳副产物，性能优于高Ni负载和无负载的Ni纳米颗粒，并证明了在PCMD材料中有缺陷的碳载体的前景。通过简单的分压实验进行的动力学分析表明，反应主要通过光热机制进行，第一个C-H键激活被确定为最适合的速率决定步骤。

引用次数: 0

Kaleidoscopic stress-colored birefringent metamaterial for digital multiplexed encryption 用于数字多路加密的万花筒应力彩色双折射超材料

IF 17.5 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter

Pub Date : 2026-02-04 DOI: 10.1016/j.matt.2025.102435

Xin Liang , Hanxin Xia , Wenjun Peng , Xianming Zhang , Yaoguang Ma , Qian Zhao , Tao Xie

Optical metamaterials that can interact with light in a sophisticated way are in increasing demand for multiplexed optical encryption. Current designs rely on creating delicate micro-structures of specific materials, which require complex device fabrication. Here, we devise a mechanism to fabricate birefringent metamaterials with their optical functions arising from spatially programmable stresses in common photosensitive resins. Typically, volume shrinkage occurs during the photocuring, which leads to random, undesirable, yet inevitable internal stress. In contrast, our approach digitally manipulates the stress magnitude/direction via sequential patterned exposure, converting pixelated shrinkage stress into engineered optical anisotropy. Consequently, multiple distinct birefringent colored patterns can be created on a single material. These color patterns and the associated information are invisible under regular light but can be independently decoded under a rotating polarization field, similar to a kaleidoscope. Our birefringent metamaterials are simple and fast to produce yet exhibit unusual versatility due to the digital light fabrication.

能够以复杂的方式与光相互作用的光学超材料对多路光加密的需求日益增加。目前的设计依赖于创造特定材料的精细微观结构，这需要复杂的设备制造。在这里，我们设计了一种机制来制造双折射超材料，其光学功能由普通光敏树脂的空间可编程应力产生。通常情况下，体积收缩发生在光固化过程中，这导致随机的，不希望的，但不可避免的内应力。相比之下，我们的方法通过顺序模式曝光来数字操纵应力大小/方向，将像素化收缩应力转换为工程光学各向异性。因此，可以在单一材料上创建多个不同的双折射彩色图案。这些颜色图案和相关信息在常规光线下是不可见的，但可以在旋转的偏振场下独立解码，类似于万花筒。我们的双折射超材料生产简单且快速，但由于数字光制造而表现出不同寻常的多功能性。

{"title":"Kaleidoscopic stress-colored birefringent metamaterial for digital multiplexed encryption","authors":"Xin Liang , Hanxin Xia , Wenjun Peng , Xianming Zhang , Yaoguang Ma , Qian Zhao , Tao Xie","doi":"10.1016/j.matt.2025.102435","DOIUrl":"10.1016/j.matt.2025.102435","url":null,"abstract":"<div><div>Optical metamaterials that can interact with light in a sophisticated way are in increasing demand for multiplexed optical encryption. Current designs rely on creating delicate micro-structures of specific materials, which require complex device fabrication. Here, we devise a mechanism to fabricate birefringent metamaterials with their optical functions arising from spatially programmable stresses in common photosensitive resins. Typically, volume shrinkage occurs during the photocuring, which leads to random, undesirable, yet inevitable internal stress. In contrast, our approach digitally manipulates the stress magnitude/direction via sequential patterned exposure, converting pixelated shrinkage stress into engineered optical anisotropy. Consequently, multiple distinct birefringent colored patterns can be created on a single material. These color patterns and the associated information are invisible under regular light but can be independently decoded under a rotating polarization field, similar to a kaleidoscope. Our birefringent metamaterials are simple and fast to produce yet exhibit unusual versatility due to the digital light fabrication.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102435"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078492","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

首页上一页

下一页尾页

类型

全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Matter

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.

﹀