Advanced Materials最新文献_第4页

Structural Modulation Enables Bright and Efficient Cs–Cu–Cl Electroluminescence 结构调制实现明亮高效的Cs-Cu-Cl电致发光

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-09 DOI: 10.1002/adma.202522256

Yongqiang Ji, Yuquan Wang, Zexing Yuan, Yufan Zhou, Poen Hsueh, Zhiqiang Chen, Yue Zhang, Hailong Wang, Qingqian Wang, Zhenwei Li, Peng Chen, Xiaobo He, Xinpeng Wang, Jiang Wu, Yi Tong, Xiaoyu Yang, Rui Zhu, Xinqiang Wang

Cesium–copper–halide (Cs–Cu–X) perovskites are potential substitutes to lead-halide perovskites for broadband electroluminescence (EL) in white light-emitting diodes (LED) due to their non-toxicity and unique self-trapped exciton (STE) characters. Many efforts have been devoted to pushing up EL efficiencies of Cs–Cu–I LED devices, while there is no report of EL based on their Cl-based counterparts yet. In this work, the EL of the Cs–Cu–Cl nanocrystals (NCs) was first demonstrated by a holistic structural modulation, whose champion device reached an external quantum efficiency of 2.02% and a high luminance of 3345 cd m⁻². The efficient bluish-white EL was explored to collectively derive from the smooth film morphology, exciton inter-band transition, triplet STE behavior, and promising electron transport ability of the Cs–Cu–Cl NC film. Additionally, the potential photophysical process for the broadband emission was proposed, collectively expanding the Cu-based perovskite EL family for displays and lighting applications.

铯-铜-卤化（Cs-Cu-X）钙钛矿由于其无毒和独特的自捕获激子（STE）特性，是替代卤化铅钙钛矿用于白光二极管（LED）宽带电致发光（EL）的潜在替代品。许多人致力于提高Cs-Cu-I LED器件的EL效率，而基于cl - i LED器件的EL还没有报道。本文首次通过整体结构调制证明了Cs-Cu-Cl纳米晶体（nc）的EL，其champion器件达到了2.02%的外量子效率和3345 cd m−2的高亮度。有效的蓝白色电致发光是由Cs-Cu-Cl NC膜的光滑膜形态、激子带间跃迁、三重态电致发光行为和有前途的电子传输能力共同产生的。此外，还提出了宽带发射的潜在光物理过程，共同扩展了用于显示和照明应用的cu基钙钛矿EL家族。

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引用次数: 0

A 3D-Printed Piezoelectric Scaffold With Bio-Inspired Gradient and Dynamic Adaptation for Tendon Regeneration. 具有仿生梯度和动态自适应的3d打印肌腱再生压电支架。

IF 26.8 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-09 DOI: 10.1002/adma.202517298

Xinyue Huang, Jiachen Liang, Qing Jia, Kaiqi Qin, Jiakai Shi, Zengjie Fan

Tendon regeneration requires materials that dynamically adapt to the healing stages, offering mechanical support, adhesion prevention, inflammation control, and collagen remodeling. We introduce a novel, dynamically adaptive piezoelectric hydrogel designed to address these requirements. The hydrogel features a bioinspired, anti-adhesive lotus structure to minimize fibroblast and protein adhesion, preventing postoperative complications. Furthermore, it incorporates rationally designed gradients in piezoelectricity, mechanical properties, and degradation rate. These gradients allow the hydrogel to dynamically match the evolving needs of tendon healing, providing adjustable mechanical, electrical stimulation, and controllable degradation. The hydrogel demonstrably reduces inflammation (downregulating TNF-α), promotes M2 macrophage polarization, inhibits bacterial growth, and stimulates endogenous tendon regeneration. This regeneration is characterized by increased collagen I deposition, improved fiber alignment, and enhanced biomechanical properties. Transcriptomic analysis revealed upregulation of genes associated with mechanotransduction, tissue remodeling, and anti-inflammatory responses, alongside downregulation of fibrotic and oxidative stress pathways. This self-powered, multi-gradient scaffold represents a significant advancement in tendon tissue engineering, offering a promising strategy for tendinopathy treatment.

肌腱再生需要动态适应愈合阶段的材料，提供机械支持、预防粘连、炎症控制和胶原蛋白重塑。我们介绍了一种新颖的、动态自适应的压电水凝胶，旨在满足这些要求。这种水凝胶具有生物启发的抗粘连莲花结构，可以最大限度地减少成纤维细胞和蛋白质的粘连，防止术后并发症。此外，它还包含了合理设计的压电性、力学性能和降解率梯度。这些梯度允许水凝胶动态匹配肌腱愈合的不断变化的需求，提供可调节的机械、电刺激和可控的降解。水凝胶可明显减轻炎症（下调TNF-α），促进M2巨噬细胞极化，抑制细菌生长，刺激内源性肌腱再生。这种再生的特点是胶原I沉积增加，纤维排列改善，生物力学性能增强。转录组学分析显示，与机械转导、组织重塑和抗炎反应相关的基因上调，以及纤维化和氧化应激途径的下调。这种自供电的多梯度支架代表了肌腱组织工程的重大进步，为肌腱病变的治疗提供了一种有前途的策略。

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引用次数: 0

Falcon Vision-Inspired Ultrafast Traffic Obstacle Avoidance Based on 2D Edge-Rich van de Waals Heterostructures 基于二维富边van de Waals异质结构的猎鹰视觉超快速交通避障

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-09 DOI: 10.1002/adma.202512548

Yang Guo, Shenghong Liu, Tao Hu, Xiang Lin, Lintao Du, Zhuo Diao, Gaohang Huo, Decai Ouyang, Wei Si, Zhen Cui, Huiqiao Li, Yuan Li, Tianyou Zhai

Ultrafast and reliable visual perception is essential for obstacle avoidance in autonomous driving, where split-second decisions must be made in complex, high-speed environments, yet remains constrained by the limited temporal resolution and processing latency of conventional devices. Here, inspired by the exceptional temporal resolution of falcon vision systems (>150 Hz), we develop a neuromorphic vision sensor capable of ultrafast, edge-selective perception for dynamic traffic scenarios. The sensor leverages vertically stacked, edge-rich SnS₂/MoS₂ van der Waals heterostructures, in which a high density of atomic-scale interfaces and defective edges enables enhanced light-matter interactions and rapid carrier dynamics. These structural advantages endow the Falcon Vision Sensor (FVS) with synaptic plasticity (PPF = 201%, LTP = 1300s), high refresh rate (250 Hz), and intrinsic erasure behaviors, closely mimicking the temporal precision and motion discrimination features of falcon vision. When the synaptic devices are integrated with computing modules, the system achieves real-time obstacle detection, along with a directional motion recognition accuracy of 98.89%. This work demonstrates a robust biologically inspired visual intelligence, offering a compact, low-latency solution for next-generation autonomous vehicles and edge AI applications requiring rapid environmental responsiveness.

超快速和可靠的视觉感知对于自动驾驶中的避障至关重要，因为自动驾驶必须在复杂的高速环境中瞬间做出决策，但仍然受到传统设备有限的时间分辨率和处理延迟的限制。在这里，受猎鹰视觉系统卓越的时间分辨率（150 Hz）的启发，我们开发了一种神经形态视觉传感器，能够为动态交通场景提供超快，边缘选择性感知。该传感器利用垂直堆叠，富边的SnS2/MoS2范德华异质结构，其中高密度的原子尺度界面和缺陷边缘能够增强光-物质相互作用和快速载流子动力学。这些结构优势赋予了猎鹰视觉传感器（Falcon Vision Sensor， FVS）突触可塑性（PPF = 201%, LTP = 1300s）、高刷新率（250 Hz）和固有擦除行为，与猎鹰视觉的时间精度和运动识别特性非常相似。当突触装置与计算模块集成时，系统实现了实时障碍物检测，方向运动识别准确率达到98.89%。这项工作展示了一种强大的受生物启发的视觉智能，为需要快速环境响应的下一代自动驾驶汽车和边缘人工智能应用提供了紧凑、低延迟的解决方案。

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引用次数: 0

Biomimetic Urethra-on-a-Chip Platform for Modelling Fibrosis: 3D-Printing and Near-Field Electrospinning in BAM-Functionalized Microenvironment 模拟纤维化的仿生尿道芯片平台：在bam功能化微环境中3d打印和近场静电纺丝

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-09 DOI: 10.1002/adma.202521431

Jiafu Liu, Wenzhuo Fang, Kai Wang, Zhidong Ma, Jie Yan, Ming Yang, Yangwang Jin, Meng Liu, Xi Yang, Wenyao Li, Qiang Fu, Yaopeng Zhang, Kaile Zhang

Urethral stricture, a prevalent urological disorder characterized by fibrosis of periurethral tissues, severely compromises urinary function and patient quality of life. Despite various clinical interventions, recurrence remains frequent, largely due to the lack of physiologically relevant in vitro models for mechanistic investigation and drug screening. Here, we present a biomimetic urethra-on-a-chip platform that integrates microfluidics, three-dimensional (3D) printing, and near-field electrospinning to recapitulate the structural and biochemical complexity of the native urethra. The device features polydimethylsiloxane (PDMS) microchannels coupled with a multilayered polycaprolactone (PCL) membrane, functionalized using a bladder acellular matrix (BAM)–gelatin bioink to emulate the extracellular matrix (ECM) microenvironment. A bilayer microchamber configuration supports spatially organized coculture of fibroblasts and urothelial cells under dynamic perfusion, reproducing physiological shear stress and nutrient gradients. Under fibrotic stimulation by transforming growth factor beta 1 (TGF-β1), the system faithfully mimicked fibroblast activation and epithelial injury, while rapamycin treatment effectively attenuated fibrotic responses, validating its potential for pharmacological testing. This urethra-on-a-chip provides a robust, reproducible, and cost-efficient platform for modeling urethral fibrosis and evaluating antifibrotic therapeutics. By bridging biofabrication, microfluidics, and tissue pathophysiology, this work establishes a versatile organ-on-a-chip model with significant implications for translational research and personalized regenerative medicine.

尿道狭窄是一种常见的泌尿系统疾病，以尿道周围组织纤维化为特征，严重影响泌尿功能和患者的生活质量。尽管有各种临床干预措施，复发仍然频繁，主要是由于缺乏生理相关的体外模型来进行机制研究和药物筛选。在这里，我们提出了一个集成了微流体、三维（3D）打印和近场静电纺丝的仿生尿道芯片平台，以概括天然尿道的结构和生化复杂性。该装置的特点是聚二甲基硅氧烷（PDMS）微通道与多层聚己内酯（PCL）膜耦合，使用膀胱脱细胞基质(BAM) -明胶生物链接进行功能化，以模拟细胞外基质（ECM）微环境。双层微室结构支持成纤维细胞和尿路上皮细胞在动态灌注下的空间组织共培养，再现生理剪切应力和营养梯度。在转化生长因子β1 （TGF-β1）的纤维化刺激下，该系统忠实地模拟成纤维细胞激活和上皮损伤，而雷帕霉素治疗有效地减弱了纤维化反应，验证了其药理学测试的潜力。这种尿道芯片为模拟尿道纤维化和评估抗纤维化治疗提供了一个强大的、可重复的、经济高效的平台。通过连接生物制造、微流体学和组织病理生理学，这项工作建立了一个多功能器官芯片模型，对转化研究和个性化再生医学具有重要意义。

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引用次数: 0

Strain-Tunable Thermal Conductivity in Largely Amorphous Polyolefin Fibers via Alignment-Induced Vibrational Delocalization. 非晶态聚烯烃纤维的应变可调热导率研究。

IF 26.8 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-09 DOI: 10.1002/adma.202520371

Duo Xu, Buxuan Li, You Lyu, Vivian J Santamaria-Garcia, Yuan Zhu, Svetlana V Boriskina

Developing fast, reversible, and recyclable thermal switches is essential to advance adaptive thermal management. Here, we present a strain-tunable thermal switch based on largely amorphous olefin block copolymer (OBC) fibers, achieving a continuous switching ratio above 2 over 1000 cycles, as well as very short response times below 0.22 s. Using Raman spectroscopy, we quantify vibrational delocalization with increasing strain and demonstrate its direct connection to the observed thermal conductivity changes. We show that unlike prior assumptions linking propagating heat carriers primarily to crystalline domains, alignment in amorphous systems can enable phonon-like modes that dominate transport. To our best knowledge, this work is the first to experimentally probe vibrational delocalization using Raman spectroscopy and to demonstrate that alignment alone can govern the dominant carrier in disordered polymers. These findings establish design strategies for fatigue-resistant, high-performance, and recyclable polymer thermal switches for advanced thermal energy transport applications.

开发快速、可逆和可回收的热开关对于推进自适应热管理至关重要。在这里，我们提出了一种基于非晶烯烃嵌段共聚物（OBC）纤维的应变可调热开关，在1000次循环中实现了超过2的连续开关比，以及低于0.22 s的极短响应时间。利用拉曼光谱，我们量化了随应变增加的振动离域，并证明了它与观察到的热导率变化的直接联系。我们表明，与先前的假设不同，将传播的热载体主要与晶体域联系起来，非晶系统中的对齐可以使主导传输的声子模式成为可能。据我们所知，这项工作是第一次利用拉曼光谱实验探测振动离域，并证明了排列本身可以控制无序聚合物中的主导载流子。这些发现建立了用于先进热能传输应用的抗疲劳、高性能和可回收聚合物热开关的设计策略。

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引用次数: 0

Ultrafast Programming of Large Curvature Based on Selenium-Sulfur Dynamic Metathesis 基于硒-硫动态分解的大曲率超快规划

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-08 DOI: 10.1002/adma.202523642

Ruiyang Wen, Chenglin Zhang, Chaozheng Miao, Wanting Huang, Rui Quan, Ruohan Huang, Han Wu, Zehuan Huang, Yizheng Tan, Huaping Xu

The construction and integration of curvature govern the structure and function of materials based on 2D sheets, yet achieving ultrafast and scalable curvature programming remains a major challenge. We rapidly generate large stress mismatches by combining an ultrafast stress-relaxing diselenide-containing polyurethane with an ultraslow stress-relaxing disulfide-containing polyurethane. Coupled with modular components and compression, this mismatch enables localized, directional loading of high stress with excellent scalability. Using this strategy, 2D polymer sheets achieve 180° bending within 10 s of UV irradiation, yielding a curvature-programming rate 15-fold faster than state-of-the-art methods. Furthermore, origami modules, which display a 37-fold enhancement in compressive performance, can be obtained through mass production and assembled into complex 3D architectures. This rapid, high-curvature programming approach offers efficiency, mechanical robustness, and scalability, advancing the practical deployment of origami-based metamaterials.

曲率的构造和集成决定着基于二维薄片的材料的结构和功能，但实现超快速和可扩展的曲率规划仍然是一个主要挑战。我们通过将一种超快速应力松弛的含二硫化物的聚氨酯与一种超低应力松弛的含二硫化物的聚氨酯相结合，迅速产生了大的应力不匹配。再加上模块化组件和压缩，这种不匹配可以实现高应力的局部定向加载，具有出色的可扩展性。使用这种策略，二维聚合物片材在紫外线照射10秒内实现180°弯曲，曲率规划速度比目前最先进的方法快15倍。此外，折纸模块的压缩性能提高了37倍，可以通过批量生产和组装成复杂的3D结构。这种快速、高曲率的编程方法提供了效率、机械稳健性和可扩展性，推进了折纸超材料的实际部署。

引用次数: 0

Liver Tissueoid on-a-Chip Modeling Liver Regeneration and Allograft Rejection 类肝组织芯片模拟肝脏再生和同种异体移植排斥反应

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-08 DOI: 10.1002/adma.202521178

Abdul Rahim Chethikkattuveli Salih, Arne Peirsman, Danial Khorsandi, Rafaela Ferrao, Lino Ferreira, Meenakshi Kamaraj, Johnson V. John, Angeles Baquerizo, Vadim Jucaud

The lack of physiologically relevant in vitro models remains a limitation in liver transplantation research. Progress in organ-on-a-chip technologies enables the generation of clinically translatable data in vitro. A vascularized liver tissueoid-on-a-chip (LToC) model is engineered to replicate human liver tissue's structural and functional features for modeling liver regeneration and allograft rejection. The LToC comprises a microfluidic device containing donor-matched human hepatic progenitor cells and intrahepatic portal vein endothelial cells embedded in a fibrin matrix and maintained in dynamic culture for 49 days. The system supports self-assembly into a perfusable microvascular network and liver lobule-like architecture, with >95% cell viability, stable vascular integrity, and active hepatic function (albumin, urea, complement factors, and hepatocyte growth factor secretion). The mature tissueoid includes hepatocytes (CK18⁺, albumin⁺, CYP2D6⁺), cholangiocytes (CK19⁺, EPCAM⁺), Kupffer cells (CD68⁺), stellate cells (PDGFR-β⁺), and endothelial cells (CD31⁺). Perfusion with allogeneic T cells induces cellular rejection, characterized by decreased viability, endothelial disruption, hepatic marker loss, HLA-I upregulation, and a proinflammatory cytokine response (IL-6, TNF-α, IL-1β, IFN-γ, granzyme A and B, and perforin). The LToC provides a physiologically relevant platform for studying immune-mediated liver injury, tissue regeneration, and allograft rejection, with potential applications in immunosuppressive drug testing and personalized transplant medicine.

缺乏与生理相关的体外模型仍然是肝移植研究的一个限制。器官芯片技术的进步使得在体外产生临床可翻译的数据成为可能。血管化肝类组织芯片（LToC）模型旨在复制人类肝组织的结构和功能特征，用于模拟肝脏再生和异体移植排斥反应。LToC包括一个微流体装置，其中包含供体匹配的人肝祖细胞和肝内门静脉内皮细胞，包埋在纤维蛋白基质中，并在动态培养中保持49天。该系统支持自组装成可灌注的微血管网络和肝小叶样结构，具有95%的细胞活力、稳定的血管完整性和活跃的肝功能（白蛋白、尿素、补体因子和肝细胞生长因子分泌）。成熟的类组织包括肝细胞（CK18+、白蛋白+、CYP2D6+）、胆管细胞（CK19+、EPCAM+）、库普佛细胞（CD68+）、星状细胞（PDGFR-β+）和内皮细胞（CD31+）。同种异体T细胞灌注诱导细胞排斥反应，其特征是活力降低、内皮破坏、肝脏标志物丧失、hla -1上调和促炎细胞因子反应（IL-6、TNF-α、IL-1β、IFN-γ、颗粒酶a和B和穿孔素）。LToC为研究免疫介导的肝损伤、组织再生和同种异体移植排斥提供了一个生理学相关的平台，在免疫抑制药物测试和个性化移植医学中具有潜在的应用前景。

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引用次数: 0

High-Valence-Cation-Induced Lattice Expansion for Activating Li2S Cathode in All-Solid-State Lithium-Sulfur Batteries 全固态锂硫电池中活化Li2S正极的高价态阳离子诱导晶格膨胀

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-08 DOI: 10.1002/adma.72513

Shuang Hong, Yun Cao, Jiangshan Qi, Chuannan Geng, Ruiqing Ye, Lingjing Wei, Yanyan Wang, Boya Zhang, Yu Long, Jiwei Shi, Li Wang, Chen Zhang, Wei Lv, Quan-Hong Yang

The practical deployment of lithium sulfide (Li₂S) cathodes in all-solid-state lithium-sulfur batteries (ASSLSBs) is challenged by their poor innate conductivities and high activation barriers. Here, we demonstrate a lattice engineering strategy using Zr⁴⁺ substitution to fundamentally activate Li₂S. The introduced Zr⁴⁺ expands the lattice, creating lithium vacancies that enhance ionic conductivity by two orders of magnitude. Simultaneously, Zr─S orbital hybridization narrows the bandgap for superior electronic conductivity and weakens Li─S bonds to lower the activation energy. This synergistic effect enables a highly reversible solid-state sulfur conversion. As a result, our ASSLSB delivers an ultrahigh energy density of 996.2 Wh kg⁻¹ based on the cathode with a record 65 wt.% electrode-level Li₂S content and maintains stability for over 100 cycles, far exceeding the conventional configuration of ∼40 wt.% loading. This strategy establishes a viable pathway toward practical high-energy-density ASSLSBs by fundamentally activating Li₂S electrochemistry.

硫化锂（Li2S）阴极在全固态锂硫电池（ASSLSBs）中的实际应用受到其固有电导率差和高激活垒的挑战。在这里，我们展示了一种晶格工程策略，使用Zr4+取代从根本上激活Li2S。引入的Zr4+扩展了晶格，产生了锂空位，将离子电导率提高了两个数量级。同时，Zr─S轨道杂化缩小了带隙以获得优异的电子导电性，减弱了Li─S键以降低活化能。这种协同效应实现了高度可逆的固态硫转化。因此，我们的ASSLSB提供了996.2 Wh kg−1的超高能量密度，基于阴极，具有创纪录的65 wt.%的电极级Li2S含量，并保持超过100次循环的稳定性，远远超过传统配置的40 wt.%负载。该策略通过从根本上激活Li2S电化学，为实际的高能量密度ASSLSBs建立了一条可行的途径。

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引用次数: 0

Lattice Slot Waveguide for Terahertz Microfluidics Biomedical Trace Analysis 用于太赫兹微流体生物医学痕量分析的点阵槽波导

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-08 DOI: 10.1002/adma.202521964

Shui Liu, Qi Xie, Yongye Xia, Dun Hu, Jingxia Qiang, Yamei Zhang, Bao Zhang, Ce Zhang, Feng Xu

Electromagnetic metasurface integrated microfluidic chips enable a real-time, label-free platform for terahertz trace analysis of volume-limited biomedical samples with suppressed water absorption noise. However, conventional metal-insulator-metal (MIM) metasurface resonators exhibit inherently limited Q-factor and sensitivity due to radiative leakage through open side boundaries. Here, a lattice slot waveguide based on MIM configuration is designed to effectively confine energy within the microfluidic channel and mitigate radiative loss. This trapped mode achieves enhanced sensitivity and Q-factor through synergistic excitation of surface lattice resonance and guided mode resonance under propagation constant matching conditions. Leveraging this platform, an anisotropic detection strategy incorporating a patterned lattice structure is devised to achieve simultaneous polarization multiplexed responses, exhibiting a figure of merit of 135 in both polarizations. Experimental validation demonstrates a limit of detection of 625 pmol mL⁻¹ and a Q-factor of 189 for this polarization multiplexing microfluidic platform. This work offers a unique avenue for enhanced accuracy and efficiency in terahertz biomedical trace analyzing via multidimensional sensing capabilities.

电磁超表面集成微流控芯片为体积有限的生物医学样品的太赫兹痕量分析提供了一个实时、无标签的平台，具有抑制的吸水噪声。然而，传统的金属-绝缘体-金属（MIM）超表面谐振器由于开放侧边界的辐射泄漏，固有地表现出有限的q因子和灵敏度。本文设计了一种基于MIM结构的晶格槽波导，有效地限制了微流控通道内的能量，减轻了辐射损失。在传播常数匹配条件下，通过表面晶格共振和导模共振的协同激发，实现了灵敏度和q因子的增强。利用该平台，设计了一种结合图案晶格结构的各向异性检测策略，以实现同时偏振复用响应，在两个偏振中显示出135的优点值。实验验证表明，该偏振复用微流控平台的检测限为625 pmol mL−1，q因子为189。这项工作为通过多维传感能力提高太赫兹生物医学痕量分析的准确性和效率提供了一条独特的途径。

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引用次数: 0

Chiropto-Neuromorphic Devices Based on a Photocatalytic Dye/Polymer Semiconductor Bulk Heterojunction for Circularly Polarized Light Detection and Memorization 基于光催化染料/聚合物半导体体异质结的手性神经形态器件用于圆偏振光检测和记忆

IF 29.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials

Pub Date : 2026-02-08 DOI: 10.1002/adma.202523436

Yousang Won, Boesung Kwon, Pongphak Chidchob, Jeongwoo Lee, Seoyoung Kim, Joon Hak Oh

Neuromorphic computing, which emulates the energy-efficient processing of the human brain, has emerged as a key technology for next-generation artificial intelligence. Integrating sensitivity to circularly polarized light (CPL) provides an additional degree of freedom for optical data encoding, yet practical implementation remains limited by material instability and complex, non-scalable fabrication. This work introduces a chiropto-neuromorphic device that addresses these challenges through a polarized light-induced charge transfer doping mechanism. The system employs a solution-processed bulk heterojunction (BHJ) composed of a chiral boron dipyrromethene (BODIPY) dye and a polymer semiconductor (PBTTT-C12) to translate CPL handedness into a stable nonvolatile memory state. Chirality-dependent charge transfer modulates the polymer's doping level, enabling precise control of synaptic weight. The device emulates key biological synaptic functions, including short- and long-term plasticity, paired-pulse facilitation, and stimulus-dependent plasticity governed by light number, duration, and intensity, while maintaining distinct chiroptical selectivity. Notably, its energy consumption remains at the picojoule (pJ) level per synaptic event, comparable to biological synapses. By introducing chirality as a new control dimension for synaptic modulation, this study demonstrates a scalable and powerful platform for polarization-encoded neuromorphic information processing and establishes a foundation for advanced artificial sensory systems capable of handling complex chiral optical signals.

模仿人类大脑高效处理的神经形态计算（Neuromorphic computing）已成为下一代人工智能（ai）的关键技术。对圆偏振光（CPL）的集成灵敏度为光学数据编码提供了额外的自由度，但实际实施仍然受到材料不稳定性和复杂，不可扩展制造的限制。这项工作介绍了一种通过偏振光诱导电荷转移掺杂机制解决这些挑战的手性神经形态装置。该系统采用由手性二吡啶硼（BODIPY）染料和聚合物半导体（PBTTT-C12）组成的溶液处理体异质结（BHJ）将CPL的手性转化为稳定的非易失性存储状态。手性相关的电荷转移调节聚合物的掺杂水平，使突触重量的精确控制。该装置模拟了关键的生物突触功能，包括短期和长期可塑性、成对脉冲促进和刺激依赖可塑性，这些可塑性由光的数量、持续时间和强度控制，同时保持了不同的热带选择性。值得注意的是，它的能量消耗保持在每个突触事件的皮焦耳（pJ）水平，与生物突触相当。通过引入手性作为突触调制的新控制维度，本研究展示了一个可扩展的、强大的极化编码神经形态信息处理平台，并为能够处理复杂手性光信号的先进人工感觉系统奠定了基础。

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引用次数: 0