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Sea urchin-inspired rigid-soft hybrid tactile sensor with wide linear range, fast response speed, and excellent robustness 基于海胆的刚软混合触觉传感器,线性范围宽,响应速度快,鲁棒性好
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-18 DOI: 10.1038/s41528-025-00513-5
Weihua Gao, Jiantao Yao, Xiangyu Fei, Xianhe Yu, Chaoming Li, Congtian Gu, Guoliang Ma, Dakai Wang, Zhiwu Han, Luquan Ren
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引用次数: 0
Strain-invariant frequency-selective metasurface for electromagnetic interference shielding in wearable electronics 用于可穿戴电子设备电磁干扰屏蔽的应变不变频率选择超表面
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-17 DOI: 10.1038/s41528-025-00499-0
Donghee Kim, Seok Joon Hwang, Jiwon Ryu, Jun-Chan Choi, Woojin Kim, Hoon Yeub Jeong, Phillip Lee, Seungjun Chung
The rapid expansion of wireless communication and data transmission has resulted in highly saturated electromagnetic (EM) environments, where undesired electromagnetic interference (EMI) can compromise signal integrity and lead to malfunctions in electronic systems. However, conventional EMI shielding materials typically attenuate broadband frequencies without selectivity, rendering them incompatible with wireless communication technologies. Moreover, their limited mechanical robustness restricts their applicability in wearable platforms. This study introduces a wearable metasurface-based EMI shielding material that enables selective transmission at 2.4 GHz with simultaneous broadband EMI attenuation across untargeted frequencies. To ensure reliable electromagnetic performance under mechanical deformation, a strain-controlling layer was incorporated to preserve the geometry of the metasurface unit cells. The resulting metasurface maintained consistent frequency-selective transmission at 2.4 GHz and effective EMI shielding under biaxial strain. These findings demonstrate a viable strategy for developing next-generation EMI shielding materials for deformable, wearable, and textile electronic systems through the integration of functional metasurfaces.
无线通信和数据传输的快速发展导致了高度饱和的电磁(EM)环境,在这种环境中,不希望出现的电磁干扰(EMI)会破坏信号完整性并导致电子系统故障。然而,传统的电磁干扰屏蔽材料通常没有选择性地衰减宽带频率,使其与无线通信技术不兼容。此外,它们有限的机械稳健性限制了它们在可穿戴平台上的适用性。本研究介绍了一种可穿戴的基于超表面的EMI屏蔽材料,该材料能够在2.4 GHz的频率下选择性传输,同时在非目标频率上实现宽带EMI衰减。为了保证机械变形下可靠的电磁性能,加入了应变控制层以保持超表面单元胞的几何形状。由此产生的超表面在2.4 GHz下保持一致的频率选择传输,并在双轴应变下有效屏蔽电磁干扰。这些发现表明,通过集成功能超表面,为可变形、可穿戴和纺织电子系统开发下一代EMI屏蔽材料提供了可行的策略。
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引用次数: 0
Regionally controlled ion-doping of organic electrochemical transistors for computing-memory co-integrated neuromorphic systems 计算-存储共集成神经形态系统中有机电化学晶体管的区域控制离子掺杂
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-17 DOI: 10.1038/s41528-025-00511-7
Mancheng Li, Wenjing Zhang, Xinyang Lv, Xiaoci Liang, Mengye Wang, Chen Chen, Chuan Liu, Songjia Han
Organic electrochemical transistors (OECTs), endued with processing and memory functionalities, present a remarkable potential for neuromorphic electronics. However, integrating processing and memory cores for neuromorphic systems is complicated by heterogeneous material compatibility and device architecture constraints. Here, we demonstrate a versatile regionally controlled ion-doping strategy for modulating the operational mode of OECTs between high-performance computing and non-volatile memory, without varying the materials or operating conditions. The key to this method is the use of inkjet-printed electrolytes with programmable 3D architectures, which can be precisely deposited onto the OECT channel, achieving a tunable thickness ranging from 100 nm to several tens of micrometers. By engineering the electrolyte’s spatial structure, we demonstrate two complementary OECT configurations: ion-rich OECTs with multilayer electrolytes achieve high stimulus-resolution capability of 1 ms for dynamic computation, and ion-deficient OECTs with single-layer electrolytes establish stable ion-trapping memristive states (300 s retention). Moreover, the integration of ion-rich and ion-deficient OECTs enables a neuromorphic circuit capable of simultaneous encoding and storage of alphanumeric information. This study presents a simple yet effective strategy that overcomes material compatibility constraints and simplifies circuit design, paving the way for highly integrated neuromorphic systems based on OECTs.
有机电化学晶体管(OECTs)具有处理和记忆功能,在神经形态电子学中具有显著的潜力。然而,集成神经形态系统的处理和存储核心是复杂的异构材料兼容性和器件架构的限制。在这里,我们展示了一种通用的区域控制离子掺杂策略,用于在不改变材料或操作条件的情况下,在高性能计算和非易失性存储器之间调制OECTs的工作模式。该方法的关键是使用具有可编程3D结构的喷墨打印电解质,可以精确地沉积在OECT通道上,实现从100纳米到几十微米的可调厚度。通过设计电解质的空间结构,我们展示了两种互补的OECT配置:具有多层电解质的富离子OECT实现了1 ms的高刺激分辨率动态计算能力,而具有单层电解质的缺离子OECT建立了稳定的离子捕获记忆性状态(300 s保留)。此外,富离子和缺离子oect的集成使神经形态电路能够同时编码和存储字母数字信息。本研究提出了一种简单而有效的策略,克服了材料兼容性限制,简化了电路设计,为基于OECTs的高度集成神经形态系统铺平了道路。
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引用次数: 0
Highly foldable and leakage-free electrodes enabled by ultrathin liquid metal micromeshes 高度可折叠和无泄漏电极由超薄液态金属微网实现
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-14 DOI: 10.1038/s41528-025-00510-8
Xin Yang, Haoyu Liu, Tingrui Pan, Baoqing Li, Jiaru Chu
Gallium-based liquid metals are promising for stretchable electronics and beyond. However, their inherent fluidity and weak structural confinement in conventional films often cause leakage and functional failure under extreme deformation. Here, we report ultrathin liquid metal micromesh electrodes fabricated through interfacial self-assembly of microparticles and subsequent laser sintering. These ultrathin electrodes (minimum thickness: 317 nm) exhibit excellent stretchability (up to 1200%) and foldability, maintaining stable performance after 10,000 folding cycles at a 70 μm bending radius. Their mechanical robustness arises from the unique micromesh architecture that disperses strain and alleviates stress concentration. It also confines the liquid metal within defined pathways, thereby preventing leakage (leakage resistance: 968.75 kPa) and ensuring structural integrity under extreme deformation. Moreover, the micromesh structure endows the electrodes with excellent electrical stability (R/R₀ = 1.66 at 300% strain) and translucency. We demonstrate applications of these electrodes in flexible LED arrays, wireless power transfer, and angular sensing.
镓基液态金属在可伸缩电子产品及其他领域很有前景。然而,传统薄膜固有的流动性和薄弱的结构约束在极端变形下往往会导致泄漏和功能破坏。在这里,我们报告了超薄液态金属微孔电极通过微粒子的界面自组装和随后的激光烧结制备。这些超薄电极(最小厚度:317 nm)具有优异的拉伸性(高达1200%)和可折叠性,在70 μm弯曲半径下折叠10,000次后仍保持稳定的性能。它们的机械坚固性源于独特的微孔结构,可以分散应变并减轻应力集中。它还将液态金属限制在规定的通道内,从而防止泄漏(泄漏阻力:968.75 kPa),并确保极端变形下的结构完整性。此外,微孔结构使电极具有优异的电稳定性(在300%应变下R/R 0 = 1.66)和半透明性。我们展示了这些电极在柔性LED阵列、无线电力传输和角度传感中的应用。
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引用次数: 0
Durable and flexible zinc mesh anodes for scalable and fast-switching electrochromic devices 耐用和灵活的锌网阳极可扩展和快速开关电致变色器件
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-12 DOI: 10.1038/s41528-025-00509-1
Guolong Zhou, Mengjie Zhu, Bing Xu, Yuxiang Ge, Tongzhuang He, Qing Xu, Zihai Cheng, Wenjing Wang, Shi Nee Lou, William W. Yu, Li-Feng Chen, Jingwei Chen
Zinc anode-based electrochromic devices (ZECDs) represent a new generation of multifunctional electrochromic (EC) platforms, offering cost-effectiveness and high round-trip efficiency. However, their practical application remains limited due to the electric field inhomogeneity and the growth of Zn dendrites, issues primarily caused by the use of opaque peripheral Zinc (Zn) foils. Herein, we rationally designed a transparent (T = 71.4% @633 nm), durable, and flexible Ag-PVDF (polyvinylidene difluoride) coated Zinc (AP@Zn) mesh electrode. The AP@Zn mesh promotes a homogeneous electric field and potential distribution within ZECDs, exhibits excellent corrosion resistance, and possesses a low activation energy (47.59 kJ mol−1). Furthermore, it demonstrates broad compatibility with various EC electrodes. As a result, a 5 cm × 5 cm Prussian blue (PB)//AP@Zn achieved fast switching times (tc/tb 2.8 s/2.6 s), high coloration efficiency (157.44 cm2 C−1), outstanding cycling stability (93.7% ΔT retention after 500 cycles), and integrated energy storage functionalities (32.89 mA h m−2 at 0.02 mA cm−2). A large, scalable 10 cm × 10 cm PB//AP@Zn device showed significantly faster switching times (tc/tb 6.6 s/5.4 s) compared to the PB//Zn foil counterpart (tc/tb 15 s/11.4 s). Importantly, we also demonstrated devices based on Nb18W16O93 (NWO)//AP@Zn, which exhibited fast switching (tc/tb 18.5 s/20 s) and high durability (77.7% ΔT retention after 1200 cycles), as well as potassium vanadate (KVO)//AP@Zn featuring multicolor capabilities. Stacked PB//AP@Zn//KVO electrochromic displays exhibited a six-color palette including olive green1, tawny, bronzing, olive green2, deep blue-green, and cool grayish green. This work underscores the critical role of electrode design in advancing ZECDs towards multifunctional and flexible electronics.
基于锌阳极的电致变色器件(ZECDs)代表了新一代多功能电致变色(EC)平台,具有成本效益和高往返效率。然而,由于电场的不均匀性和锌枝晶的生长,它们的实际应用仍然受到限制,这些问题主要是由于使用不透明的外围锌(Zn)箔引起的。为此,我们合理设计了一种透明(T = 71.4% @633 nm)、耐用、柔性的Ag-PVDF(聚偏氟乙烯)包覆锌(AP@Zn)网状电极。AP@Zn网状结构促进了zecd内电场和电位分布均匀,具有良好的耐腐蚀性能,活化能低(47.59 kJ mol−1)。此外,它与各种EC电极具有广泛的兼容性。结果,5cm × 5cm普鲁士蓝(PB)//AP@Zn实现了快速的开关时间(tc/tb 2.8 s/2.6 s),高着色效率(157.44 cm2 C−1),出色的循环稳定性(500次循环后93.7%的保留率ΔT),以及集成的能量存储功能(32.89 mA h m−2,0.02 mA cm−2)。一个大的,可扩展的10 cm × 10 cm PB//AP@Zn器件显示出明显更快的开关时间(tc/tb 6.6 s/5.4 s)相比,PB//Zn箔对应(tc/tb 15 s/11.4 s)。重要的是,我们还展示了基于Nb18W16O93 (NWO)//AP@Zn的器件,其具有快速开关(tc/tb 18.5 s/20 s)和高耐用性(1200次循环后77.7%保留ΔT),以及具有多色功能的钒酸钾(KVO)//AP@Zn。堆叠PB//AP@Zn//KVO电致变色显示器展示了六色调色板,包括橄榄绿1、茶色、古铜色、橄榄绿2、深蓝绿和冷灰绿色。这项工作强调了电极设计在推动zecd向多功能和柔性电子方向发展中的关键作用。
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引用次数: 0
A bioinspired deep-sea iontronic skin for underwater robotic tactile sensing 一种仿生深海离子皮肤,用于水下机器人触觉感应
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-05 DOI: 10.1038/s41528-025-00508-2
Qingyang Zheng, Daohui Zhang, Tianzhao Bu, Xin Fu, Naijia Xu, Shaoyu Liu, Sen Zhou, Bin Xie, Shuwen Chen, Chwee Teck Lim, Changsheng Wu, Hao Wu
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引用次数: 0
Flexible Cu2AgBiI6-based perovskite-inspired solar cells using large-scale processing methods 采用大规模加工方法的柔性cu2agbii6钙钛矿太阳能电池
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-04 DOI: 10.1038/s41528-025-00505-5
Ville Holappa, G. Krishnamurthy Grandhi, Noora Lamminen, Riikka Suhonen, Thomas M. Kraft, Paola Vivo
In this work, emerging perovskite-inspired Cu 2 AgBiI 6 (CABI) solar cells were successfully fabricated on flexible substrates, demonstrating that the transition from rigid to flexible materials does not compromise device performance. This underscores the versatility of CABI on two different kinds of substrates. Additionally, to optimize charge extraction, we selected a polymeric hole-transport material (HTM), PPDT2FBT, whose energy levels align with CABI. The PPDT2FBT-based devices outperformed those using the well-known poly(3-hexylthiophene) (P3HT), leading to power conversion efficiencies as high as approximately 0.8%. These results suggest that PPDT2FBT may hold promise as a HTM for use in low-toxicity, perovskite-inspired photovoltaic systems, such as those based on CABI. Furthermore, roll-to-roll processing techniques, crucial for scalable production, were tested. However, controlling the morphology of the active layer remains a significant challenge. These findings represent critical steps toward the large-scale manufacturing and commercialization of flexible, PIM-based solar cells.
在这项工作中,新兴的钙钛矿启发的cu2 AgBiI 6 (CABI)太阳能电池成功地在柔性衬底上制造,表明从刚性材料到柔性材料的过渡不会影响器件性能。这强调了CABI在两种不同基板上的多功能性。此外,为了优化电荷提取,我们选择了一种聚合物空穴输运材料(HTM), PPDT2FBT,其能级与CABI一致。基于ppdt2fbt的器件优于使用众所周知的聚(3-己基噻吩)(P3HT)的器件,其功率转换效率高达约0.8%。这些结果表明,PPDT2FBT有望作为HTM用于低毒性、钙钛矿启发的光伏系统,如基于CABI的光伏系统。此外,对可扩展生产至关重要的卷对卷加工技术进行了测试。然而,控制活性层的形态仍然是一个重大的挑战。这些发现代表了柔性、基于pim的太阳能电池大规模生产和商业化的关键一步。
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引用次数: 0
Skin-inspired Janus E-textile with bidirectional motion perception and adaptive moisture management for next-generation wearables 皮肤启发Janus电子纺织品双向运动感知和自适应湿度管理下一代可穿戴设备
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-04 DOI: 10.1038/s41528-025-00502-8
Yinuo Pan, Chunbing Yang, Zhaoqun Du
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引用次数: 0
A wireless, skin-integrated system for continuous pressure distribution monitoring to prevent ulcers across various healthcare environments 一种无线、皮肤集成系统,用于连续压力分布监测,以防止各种医疗保健环境中的溃疡
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-03 DOI: 10.1038/s41528-025-00501-9
Seonggwang Yoo, Zengyao Lv, Nicholas Fadell, Jae-Young Yoo, Seyong Oh, Kyoung-Ho Ha, William M. Moritz, Jihun Cha, Hanbing Wu, Jihun Park, Sung Soo Kwak, Kyeongha Kwon, Yoonseok Park, Donghwi Cho, Hak-Young Ahn, Chanho Park, Sangjun Kim, Tae Wan Park, Woo-Youl Maeng, Heung Cho Ko, Amanda M. Westman, Matthew MacEwan, Yonggang Huang, Justin Saks, John A. Rogers
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引用次数: 0
Integrated health monitoring system with flexible asymmetric supercapacitors based on 2D Ti₃C₂ MXene and transitional metal oxides 基于二维Ti₃C₂MXene和过渡金属氧化物的柔性非对称超级电容器集成健康监测系统
IF 14.6 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-12-01 DOI: 10.1038/s41528-025-00489-2
Kaaviah Manoharan, Martin Pumera
Developing flexible, lightweight, and portable medical devices for continuous health monitoring requires compact and sustainable energy storage solutions. Traditional devices often rely on bulky wired equipment or battery-powered systems requiring frequent recharging, limiting practicality. We developed a flexible and stable asymmetric supercapacitor using MXene and transition metal oxide nanocomposite. In half cells, the electrolyte was 1M H₂SO₄; in full cells, a PVA/H₂SO₄ gel was used. Among the composites, Fe₂O₃@Ti₃C₂ showed superior electrochemical performance due to surface redox reactions enhancing pseudocapacitance. The Fe₂O₃@Ti₃C₂||Ti₃C₂ electrode delivered high specific capacitance, excellent power density, remarkable cyclic stability, and mechanical durability over 10,000 bending cycles. The assembled device successfully powered small electronics (LEDs and digital thermometers). Also, integrated with a pressure sensor to monitor human heartbeat signals in real time, with wireless data transmission to a mobile device. This work demonstrates the efficiency and applicability of Fe₂O₃@Ti₃C₂ flexible supercapacitors for next-generation wearable and biomedical electronics.
开发灵活、轻便和便携式的医疗设备,用于持续的健康监测,需要紧凑和可持续的能量存储解决方案。传统设备通常依赖于笨重的有线设备或需要频繁充电的电池供电系统,限制了实用性。利用MXene和过渡金属氧化物纳米复合材料制备了一种柔性稳定的非对称超级电容器。在半电池中,电解质为1M H₂SO₄;在全细胞中,使用PVA/H₂SO₄凝胶。在复合材料中,Fe₂O₃@Ti₃C₂由于表面氧化还原反应增强了赝电容而表现出优异的电化学性能。Fe₂O₃@Ti₃C₂||Ti₃C₂电极具有高比电容、优异的功率密度、卓越的循环稳定性和超过10,000次弯曲循环的机械耐久性。组装的设备成功地为小型电子设备(led和数字温度计)供电。此外,它还集成了一个压力传感器,可以实时监测人类的心跳信号,并通过无线数据传输到移动设备。这项工作证明了Fe₂O₃@Ti₃C₂柔性超级电容器用于下一代可穿戴和生物医学电子产品的效率和适用性。
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引用次数: 0
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npj Flexible Electronics
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