Advanced Materials最新文献_第7页

Coaxial Electroluminochromic Fibers with Dynamic RGB Switching for Pixelated Smart Textiles. 用于像素化智能纺织品的动态RGB切换同轴电致变色纤维。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202505012

Yanlong Zhao,Fan Lan,Yunrui Li,Ya Huang,Fei Wang,Kangkang Wang,Rufan Zhang

{"title":"Coaxial Electroluminochromic Fibers with Dynamic RGB Switching for Pixelated Smart Textiles.","authors":"Yanlong Zhao,Fan Lan,Yunrui Li,Ya Huang,Fei Wang,Kangkang Wang,Rufan Zhang","doi":"10.1002/adma.202505012","DOIUrl":"https://doi.org/10.1002/adma.202505012","url":null,"abstract":"The immense potential of electronic textiles for wearable applications has spurred extensive research into luminescent fibers suitable for smart textile displays. However, current electroluminescent (EL) fibers, while flexible and wearable, typically emit only a fixed color and have a 1D structure, which confines fiber-based displays to pre-designed patterns. Here, a coaxial hierarchical fiber structure is fabricated with an insulating polymer layer sandwiched between an EL core and an electrochromic (EC) shell based on carbon nanotube fibers. Acting as a dynamic optical filter with RGB tri-state switching capabilities, the EC shell can effectively modulate the optical properties of inner emitted lights via a low voltage, enabling a new \"electroluminochromic\" fiber with multicolor luminescence and rapid on-demand color switching. Moreover, electroluminochromic bare fibers can be woven with orthogonal electrodes at discrete gel polymer electrolyte junctions, forming individually addressable luminescent pixels. Using a warp-weft knitting approach and integration with the Internet of Things, this display textile can transmit information, exhibiting great potential for applications in smart displays and wearable electronic devices.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"16 1","pages":"e2505012"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478911","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 Future of MXene Fibers. MXene纤维的未来。

IF 27.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202506437

Ken Aldren S Usman, Jizhen Zhang, Lingyi Bi, Shayan Seyedin, Xungai Wang, Yury Gogotsi, Joselito M Razal

引用次数: 0

Preferred Parallel Alignment of Sulfonamide Enables High-performance Inverted Perovskite Solar Cells. 磺胺优选平行排列实现高性能倒钙钛矿太阳能电池。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202507918

Hailong Huang,Yansen Guo,Wei Wang,Yanbo Wang,Zewu Feng,Jianjun Xu,Huanyu Zhang,Yi Ji,Le Li,Xueqi Wu,Yitong Liu,Yige Peng,Xin Li,Yuan Fang,Yurou Zhang,Chaopeng Huang,Siyu Chen,Weichang Zhou,Dongsheng Tang,Jingsong Sun,Youyong Li,Bin Ding,Jefferson Zhe Liu,Klaus Weber,Xiang He,Yi Cui,Nan Hu,Hualin Zhan,Xiaohong Zhang,Jun Peng

{"title":"Preferred Parallel Alignment of Sulfonamide Enables High-performance Inverted Perovskite Solar Cells.","authors":"Hailong Huang,Yansen Guo,Wei Wang,Yanbo Wang,Zewu Feng,Jianjun Xu,Huanyu Zhang,Yi Ji,Le Li,Xueqi Wu,Yitong Liu,Yige Peng,Xin Li,Yuan Fang,Yurou Zhang,Chaopeng Huang,Siyu Chen,Weichang Zhou,Dongsheng Tang,Jingsong Sun,Youyong Li,Bin Ding,Jefferson Zhe Liu,Klaus Weber,Xiang He,Yi Cui,Nan Hu,Hualin Zhan,Xiaohong Zhang,Jun Peng","doi":"10.1002/adma.202507918","DOIUrl":"https://doi.org/10.1002/adma.202507918","url":null,"abstract":"Molecule additives emerge as a highly effective strategy for enhancing the performance and stability of perovskite solar cells (PSCs), owing to their potential in suppressing intrinsic defects in perovskite. However, the influence of atomic configuration and electronic properties of additives on their passivation performance receives little attention. Here, two benzenesulfonamide derivatives, 4-carboxybenzenesulfonamide (CO-BSA) and 4-cyanobenzenesulfonamide (CN-BSA) are investigated, examining the effects of molecules with different electron‑acceptor functional groups on the defect passivation of perovskite layer and the photovoltaic properties of perovskite solar cells (PSCs. It is found that CN‑BSA and CO‑BSA preferentially adopt parallel-aligned binding orientations within the perovskite, enabling strong coordination to two neighboring undercoordinated Pb2+ defect sites. Meanwhile, CO‑BSA exhibits a more favorable electronic configuration than CN‑BSA, which endows the functional groups with a higher electron density that enables stronger dual-site binding with uncoordinated Pb2+ defects. Moreover, incorporating CO-BSA promotes the formation of perovskite films with large grain sizes, high quality, and low defect densities. Consequently, the device modified with CO-BSA achieves an efficiency of 26.53% (certified 26.31%). The encapsulated CO-BSA-based cell retains 96.1% of its initial efficiency after 1100 h of steady-state power output (SPO) measurement in air.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"20 1","pages":"e2507918"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478928","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

Fully Degradable Protein Gels with Superior Mechanical Properties and Durability: Regulation of Hydrogen Bond Donors. 具有优异机械性能和耐久性的完全可降解蛋白质凝胶：氢键供体的调节。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202506577

Yunfeng Li,Zhihui Qin,Ping He,Muqing Si,Linfang Zhu,Na Li,Xiaojiao Shi,Guanqiu Hao,Tifeng Jiao,Ximin He

{"title":"Fully Degradable Protein Gels with Superior Mechanical Properties and Durability: Regulation of Hydrogen Bond Donors.","authors":"Yunfeng Li,Zhihui Qin,Ping He,Muqing Si,Linfang Zhu,Na Li,Xiaojiao Shi,Guanqiu Hao,Tifeng Jiao,Ximin He","doi":"10.1002/adma.202506577","DOIUrl":"https://doi.org/10.1002/adma.202506577","url":null,"abstract":"Protein gels hold great promise in various applications due to their high biocompatibility, biodegradability, and abundant sources. However, most existing protein gels suffer from low strength, stiffness, and toughness because conventional solvent within gels usually weakens crosslinked network structure. Here, strong, stiff, and tough protein gels are developed by using deep eutectic solvents (DESs) with tunable hydrogen bond donors (HBDs) as the dispersion medium. The DESs not only facilitate protein chain-chain interaction, but also form abundant non-covalent crosslinks between protein chains through protein chain-solvent interaction. More importantly, these crosslinked interactions can be tailored by varying HBDs, further toughening the gels. As a result, the obtained protein gels exhibit excellent mechanical properties, including tensile strength of 10.25 ± 1.28 MPa, tensile strain of 892.51 ± 39.66%, elastic modulus of 24.57 ± 0.27 MPa, toughness of 17.34 ± 0.46 MJ m-3, and fracture energy of 6.76 ± 0.99 kJ m-2, which surpass the previously reported protein gels. Despite their enhanced mechanics, they retain key advantages such as adhesiveness, retrievability, environmental durability, and full degradability. This work presents a novel strategy for designing robust, multifunctional protein gels, expanding their potential in emerging technologies that demand both mechanical toughness and functional versatility.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"46 1","pages":"e2506577"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478908","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

Dual-Selective Terahertz-Nanodisc Metasurfaces for Exploring Neurotransmitter Dynamics beyond Spectral Limitations. 探索超越光谱限制的神经递质动力学的双选择太赫兹-纳米盘超表面。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202504858

Taeyeon Kim,Yeon Kyung Lee,Yeeun Roh,Jaehun Park,Yong-Sang Ryu,Hyun Seok Song,Minah Seo

{"title":"Dual-Selective Terahertz-Nanodisc Metasurfaces for Exploring Neurotransmitter Dynamics beyond Spectral Limitations.","authors":"Taeyeon Kim,Yeon Kyung Lee,Yeeun Roh,Jaehun Park,Yong-Sang Ryu,Hyun Seok Song,Minah Seo","doi":"10.1002/adma.202504858","DOIUrl":"https://doi.org/10.1002/adma.202504858","url":null,"abstract":"The rapid growth of nanotechnology and spectroscopic techniques has accelerated the development of biosensors with high sensitivity and selectivity. Nanoscale metasurfaces can potentially overcome the limitations of conventional optical methods, such as low responsivity and molecular specificity. One promising approach for analyzing subtle biochemical changes that occur in complex biological phenomena is to use terahertz metasurfaces. Here, the aim is to develop a dual-selective terahertz nanodisc metasurface that enabled precise monitoring of neurotransmitter dynamics in a biomimetic environment. Utilizing functionalized terahertz metasurfaces with nanodisc that mimic biosensory receptors, a biosensor selective for both molecular type and resonant frequency is developed. The sensing platform ensures significantly enhanced sensitivity and specificity by recognizing the intermolecular changes associated with serotonin-nanodisc binding and aqueous surrounding effects. The proposed biosensor can potentially provide an efficient tool for studying complex biochemical interactions, and find application in biomedical diagnostics and neuroscience research.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"657 1","pages":"e2504858"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478931","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

Weyl Semimetals: From Principles, Materials to Applications 半金属：从原理、材料到应用

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202506236

Mengyuan Zhong, Nam Thanh Trung Vu, Wenhao Zhai, Jian Rui Soh, Yuanda Liu, Jing Wu, Ady Suwardi, Huajun Liu, Guoqing Chang, Kian Ping Loh, Weibo Gao, Cheng‐Wei Qiu, Joel K. W. Yang, Zhaogang Dong

{"title":"Weyl Semimetals: From Principles, Materials to Applications","authors":"Mengyuan Zhong, Nam Thanh Trung Vu, Wenhao Zhai, Jian Rui Soh, Yuanda Liu, Jing Wu, Ady Suwardi, Huajun Liu, Guoqing Chang, Kian Ping Loh, Weibo Gao, Cheng‐Wei Qiu, Joel K. W. Yang, Zhaogang Dong","doi":"10.1002/adma.202506236","DOIUrl":"https://doi.org/10.1002/adma.202506236","url":null,"abstract":"Weyl semimetals have attracted significant interest in condensed matter physics and materials science, due to their unique electronic and topological properties. These characteristics not only deepen the understanding of fundamental quantum phenomena, but also make Weyl semimetals promising candidates for advanced applications in electronics, photonics, and spintronics. This review provides a systematic overview of the field, covering theoretical foundations, material synthesis, engineering strategies, and emerging device applications. This study first outlines the key theoretical principles and distinctive properties of Weyl semimetals, followed by an examination of recent advancements that enhance their functional versatility. Finally, this study discusses the critical challenges hindering their practical implementation and explore future development directions, along with the potential for expanding and enhancing their existing range of applications. By integrating discussions of both opportunities and obstacles, this review offers a balanced perspective on current progress and future directions in Weyl semimetal research.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"7 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479125","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

Nucleation Modification in Two-Step Slot-Die Coating Toward Efficient Large Scale Perovskite/Silicon Tandems Based on Commercial Silicon Cells. 基于商用硅电池的高效大规模钙钛矿/硅串联的两步槽模涂层成核改性。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202501961

Haohui Li,Zheng Zhang,Yuhao Wei,Bo An,Jia Liao,Xiangxue Lv,Weifeng Lv,Juncai Yang,Haimin Li,Chengsong Zeng,Wu Long,Yuchao Hu,Yifeng Zhang,Wei Long,Guoqiang Xing,Xingchong Liu,Hanyu Wang

{"title":"Nucleation Modification in Two-Step Slot-Die Coating Toward Efficient Large Scale Perovskite/Silicon Tandems Based on Commercial Silicon Cells.","authors":"Haohui Li,Zheng Zhang,Yuhao Wei,Bo An,Jia Liao,Xiangxue Lv,Weifeng Lv,Juncai Yang,Haimin Li,Chengsong Zeng,Wu Long,Yuchao Hu,Yifeng Zhang,Wei Long,Guoqiang Xing,Xingchong Liu,Hanyu Wang","doi":"10.1002/adma.202501961","DOIUrl":"https://doi.org/10.1002/adma.202501961","url":null,"abstract":"Vapor-solution two-step deposition is recognized as a promising method to fabricate monolithic perovskite/silicon tandem solar cells (TSCs) on commercial silicon cell substrates with fully textured surfaces. Although a certified power conversion efficiency (PCE) of 31.3% is recorded for small size perovskite/silicon TSCs, scaling up from spin-coating used for small sizes to the slot-die for large areas has become the main challenge for its further mass production due to the residual PbI2 and increased internal voids in perovskite (PVK) films. In this study, sodium 2,5-difluorobenzoate (2,5-NaDPA) is utilized to reduce nucleation energy barrier difference at various convex angles on PbI2 layer, delaying the growth of perovskite crystals, and effectively promoting the grain size of perovskites, which is particularly favorable for perovskites deposited on commercial textured Si substrates. Eventually, the voids of large area PVK films are greatly restrained. A high efficiency of 28.28% is obtained from a fully textured perovskite/silicon tandem device prepared in ambient condition with an effective area of 19.9 cm2. This work paves a new method for commercial production of large area perovskite/silicon TSCs.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"66 1","pages":"e2501961"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478688","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

Polymers Microspheres as Colorful Ultralong Organic Phosphorescence Delivery for Printable Optical Multiplexing. 聚合物微球作为彩色超长有机磷光传输的可打印光复用。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202502169

Wei Yao,Chenglin Mei,Huimin Xing,Xiaokang Yao,Chenxiao Li,Yiyan Guan,Kun Liu,Huili Ma,Huifang Shi,Zhongfu An,Wei Huang

{"title":"Polymers Microspheres as Colorful Ultralong Organic Phosphorescence Delivery for Printable Optical Multiplexing.","authors":"Wei Yao,Chenglin Mei,Huimin Xing,Xiaokang Yao,Chenxiao Li,Yiyan Guan,Kun Liu,Huili Ma,Huifang Shi,Zhongfu An,Wei Huang","doi":"10.1002/adma.202502169","DOIUrl":"https://doi.org/10.1002/adma.202502169","url":null,"abstract":"The development of ultralong organic phosphorescence (UOP) materials with programmable color is of great significance yet remains challenging for various optoelectronic applications. In this work, a novel type of polymer microspheres is presented as versatile carriers capable of regulating UOP colors through the reversible absorption and release of different phosphors. The rigid environment, facilitated by intermolecular hydrogen bonds between the aryl carboxylic acid groups of the phosphors and the crosslinked polyacrylamide (PAM) microspheres, effectively suppresses non-radiative transitions, enabling UOP with an impressive emission lifetime of 3.68 s. Specifically, these polymer microspheres serve as dynamic carriers that can reload and release uniformly dispersed phosphors in aqueous solution, thereby rearranging intermolecular hydrogen bonds and tuning the UOP emission color across a spectrum from blue to green and red. Furthermore, by incorporating fluorescent dyes into the polymer microspheres, the UOP color range can be extended to cover the entire visible spectrum through energy transfer mechanisms. Finally, the successful application of these UOP polymer microspheres is demonstrated in optical multiplexing. This study not only proposes a novel strategy for achieving color-tunable UOP in polymer microspheres but also broadens their potential applications in advanced optoelectronic technologies.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"17 1","pages":"e2502169"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478932","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

A High-Capacity Semiconductor Organic Polymer for Stable Aqueous Ammonium-Ion Storage. 一种用于稳定水铵离子储存的高容量半导体有机聚合物。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202508001

Zi-Hang Huang,Miao Liu,Yue Zhang,Hui Li,Jichi Liu,Zhijun Wu,Wubin Du,Hongge Pan,Tianyi Ma

{"title":"A High-Capacity Semiconductor Organic Polymer for Stable Aqueous Ammonium-Ion Storage.","authors":"Zi-Hang Huang,Miao Liu,Yue Zhang,Hui Li,Jichi Liu,Zhijun Wu,Wubin Du,Hongge Pan,Tianyi Ma","doi":"10.1002/adma.202508001","DOIUrl":"https://doi.org/10.1002/adma.202508001","url":null,"abstract":"In aqueous ammonium-ion storage (AAIS), effective hydrogen-binding sites are crucial for designing high-performance ammonium ions (NH4 +) host materials. The organic small molecule tetraamino-p-benzoquinone (TABQ) shows great potential in AAIS due to its unique hydrogen-bonding interactions with NH4 +. However, such small-molecule materials typically exhibit severe dissolution in aqueous electrolytes. Moreover, their low conductivity severely hampers their ability to store ammonium ions. To address these challenges concurrently, a chain amide polymer (PPAT) is designed by introducing a 3,4,9,10-perylenetetracarboxylic dianhydride to extend the skeleton of TABQ. This polymer exhibits an ultralow solubility of 0.00058 mg mL-1 and introduces substantial functional groups for hydrogen-bonding interactions. The conjugated effect is further extended by combining it with polyaniline (PANI). The spectral and computational results indicate that the designed material possesses an elevated HOMO energy level, a reduced LUMO energy level, and a smaller bandgap. The delocalization of electrons throughout the entire molecule leads to a semiconducting nature. The organic polymer electrode delivers a high capacity of 291.81 mAh g-1 at 1 A g-1, outperforming state-of-the-art NH4 + storage organic materials. The energy storage mechanism of the hydrogen-bonding interactions between the organic polymer and NH4 + is investigated, and the active sites that contribute to high capacity are identified.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"101 1","pages":"e2508001"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478665","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

Stimuli-Responsive Low-Frequency Terahertz Absorption ON-OFF Switchability in Spin-Crossover Material. 自旋交叉材料中刺激响应低频太赫兹吸收的开关性。

IF 29.4 1区材料科学

Advanced Materials Pub Date : 2025-06-25 DOI: 10.1002/adma.202507457

Guanping Li,Olaf Stefanczyk,Kunal Kumar,Laurent Guérin,Kazuki Nakamura,Maryam Alashoor,Lulu Xiong,Koji Nakabayashi,Kenta Imoto,Yuiga Nakamura,Sumit Ranjan Maity,Guillaume Chastanet,Nicholas F Chilton,Shin-Ichi Ohkoshi

{"title":"Stimuli-Responsive Low-Frequency Terahertz Absorption ON-OFF Switchability in Spin-Crossover Material.","authors":"Guanping Li,Olaf Stefanczyk,Kunal Kumar,Laurent Guérin,Kazuki Nakamura,Maryam Alashoor,Lulu Xiong,Koji Nakabayashi,Kenta Imoto,Yuiga Nakamura,Sumit Ranjan Maity,Guillaume Chastanet,Nicholas F Chilton,Shin-Ichi Ohkoshi","doi":"10.1002/adma.202507457","DOIUrl":"https://doi.org/10.1002/adma.202507457","url":null,"abstract":"Thermal and optical-induced ON-OFF switchable materials show vast potential in various fields like sensors, spintronics, and electronic devices, but remain underexplored in the essential terahertz (THz) region. In this context, a unique 1D spin-crossover (SCO) network, {[FeII(4-cyanopyridine)2][HgII(µ-SCN)2(SCN)(4-cyanopyridine)]2}n (1), has been designed. Temperature-dependent crystallographic, magnetic, and THz absorption spectroscopic studies indicate an abrupt SCO phenomenon from a high-spin (HS) state to a complete or partial low-spin (LS) state, depending on the cooling rate. At low temperatures, the LS state can be converted into the metastable HS state via the light-induced excited spin-state trapping (LIESST) effect using visible or near-infrared lights. Both temperature and light reversibly modulate the THz absorbance (e.g., 0.82 and 1.37 THz) associated with phonons around Fe(II) centers, confirmed by first-principles calculations and photocrystallographic analysis. This work advances comprehension of the intersection between structures, THz properties, and external-stimuli switching effects and is pivotal for future THz device applications.","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"45 1","pages":"e2507457"},"PeriodicalIF":29.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478927","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