Pub Date : 2026-02-06DOI: 10.1016/j.matt.2025.102581
Jing Chen, Jia-Wei Yao, Kai-Li Wang, Ze-Kai Bian, Meng-Zhen Qiao, Chun-Hao Chen, Lei Huang, Yu Xia, Jian Fan, Zhao-Kui Wang
The commercialization of perovskite solar cells (PSCs) is critically impeded by the inherent instability of the hole-transport layer (HTL), particularly the ion migration and interfacial degradation. These issues create a fundamental trade-off between achieving high efficiency and long-term operational stability. Here, we break this paradox through a “synergistic covalent-lock interfacial molecular functionalization” strategy. We molecularly engineer Spiro-AC, a novel crown-ether-functionalized derivative, which enables in situ multifunctional healing of the perovskite/HTL interface. The crown-ether units sequester migratory Li+ and passivate Pb2+ defects, effectively suppressing ion diffusion and non-radiative recombination. Spontaneous interfacial dipole formation and enhanced π-π stacking create cascading energy alignment, eliminating hole extraction barriers. Consequently, Spiro-AC-based PSCs achieve a champion power conversion efficiency of 26.06% and exceptional operational stability. This work establishes a transformative “closed-loop function-structure-stability” paradigm, providing a universal molecular design blueprint for stable and high-performance optoelectronic devices.
{"title":"Homogeneous interfacial ion-chelation for stable perovskite photovoltaics","authors":"Jing Chen, Jia-Wei Yao, Kai-Li Wang, Ze-Kai Bian, Meng-Zhen Qiao, Chun-Hao Chen, Lei Huang, Yu Xia, Jian Fan, Zhao-Kui Wang","doi":"10.1016/j.matt.2025.102581","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102581","url":null,"abstract":"The commercialization of perovskite solar cells (PSCs) is critically impeded by the inherent instability of the hole-transport layer (HTL), particularly the ion migration and interfacial degradation. These issues create a fundamental trade-off between achieving high efficiency and long-term operational stability. Here, we break this paradox through a “synergistic covalent-lock interfacial molecular functionalization” strategy. We molecularly engineer Spiro-AC, a novel crown-ether-functionalized derivative, which enables <em>in situ</em> multifunctional healing of the perovskite/HTL interface. The crown-ether units sequester migratory Li<sup>+</sup> and passivate Pb<sup>2+</sup> defects, effectively suppressing ion diffusion and non-radiative recombination. Spontaneous interfacial dipole formation and enhanced π-π stacking create cascading energy alignment, eliminating hole extraction barriers. Consequently, Spiro-AC-based PSCs achieve a champion power conversion efficiency of 26.06% and exceptional operational stability. This work establishes a transformative “closed-loop function-structure-stability” paradigm, providing a universal molecular design blueprint for stable and high-performance optoelectronic devices.","PeriodicalId":388,"journal":{"name":"Matter","volume":"177 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146122409","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102613
Jifang Liu , Chenyu Qiao , Hongbo Zeng
Strong, reversible, and adaptive adhesives can be designed by tailoring non-covalent interactions. This preview demonstrates a supramolecular strategy for programming adhesion, which integrates various non-covalent interactions and dynamic covalent bonds to achieve robust adhesion performance across diverse surfaces. This work demonstrates how molecular-level designs enable sustainable, reconfigurable adhesives and highlights data-driven methods for bridging molecular interactions with macroscopic adhesive properties.
{"title":"Programming adhesion via intermolecular forces: Supramolecular design for strong, reversible, and adaptive bonding","authors":"Jifang Liu , Chenyu Qiao , Hongbo Zeng","doi":"10.1016/j.matt.2025.102613","DOIUrl":"10.1016/j.matt.2025.102613","url":null,"abstract":"<div><div>Strong, reversible, and adaptive adhesives can be designed by tailoring non-covalent interactions. This preview demonstrates a supramolecular strategy for programming adhesion, which integrates various non-covalent interactions and dynamic covalent bonds to achieve robust adhesion performance across diverse surfaces. This work demonstrates how molecular-level designs enable sustainable, reconfigurable adhesives and highlights data-driven methods for bridging molecular interactions with macroscopic adhesive properties.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102613"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116698","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102533
Wanjie Bai (白万杰) , Haotian Li (李昊天) , Huijie Liu (刘惠杰) , Xianheng Wang (王显恒) , Zhipeng Gu (顾志鹏) , Ye Yang (杨晔) , Yiwen Li (李乙文)
Black color is the most typical feature of natural and synthetic melanins, which results from the complex packing and chemical disorder of the molecular structure within melanins. From nature and beyond nature, breaking through the black color boundary, expanding the scope of inherent functions, and establishing clearer structure-function relationship of melanin is necessary but hard due to the inherent chaos structure caused by random covalent coupling and supramolecular assembly. Herein, starting from melanin-inspired monomers, we chose and assembled typical organic acceptor molecules (TCNB/TCNQ) with melanin-inspired donor molecules to prepare a series of colorful melanin-inspired pigments through the co-crystallization strategy. The resulting colorful melanin-inspired pigments exhibited multiple colors and different rod-like morphologies compared with many melanin-like polymers. Particularly, green DHI/TCNQ powder presented excellent photothermal efficiency (∼69.8%) for antibacterial application. This work would provide new structure-function tailoring strategy toward the design of melanin-like polymers with highly ordered structures and desirable properties.
{"title":"Colorful melanin-inspired pigments","authors":"Wanjie Bai (白万杰) , Haotian Li (李昊天) , Huijie Liu (刘惠杰) , Xianheng Wang (王显恒) , Zhipeng Gu (顾志鹏) , Ye Yang (杨晔) , Yiwen Li (李乙文)","doi":"10.1016/j.matt.2025.102533","DOIUrl":"10.1016/j.matt.2025.102533","url":null,"abstract":"<div><div>Black color is the most typical feature of natural and synthetic melanins, which results from the complex packing and chemical disorder of the molecular structure within melanins. From nature and beyond nature, breaking through the black color boundary, expanding the scope of inherent functions, and establishing clearer structure-function relationship of melanin is necessary but hard due to the inherent chaos structure caused by random covalent coupling and supramolecular assembly. Herein, starting from melanin-inspired monomers, we chose and assembled typical organic acceptor molecules (TCNB/TCNQ) with melanin-inspired donor molecules to prepare a series of colorful melanin-inspired pigments through the co-crystallization strategy. The resulting colorful melanin-inspired pigments exhibited multiple colors and different rod-like morphologies compared with many melanin-like polymers. Particularly, green DHI/TCNQ powder presented excellent photothermal efficiency (∼69.8%) for antibacterial application. This work would provide new structure-function tailoring strategy toward the design of melanin-like polymers with highly ordered structures and desirable properties.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102533"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145711300","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102580
Xin Guo, Shilong Wang, Di Wei, Chi Zhang, Shuge Dai, Liming Ding, Zhong Lin Wang, Jiajia Shao
This work provides a device figure-of-merit (FOMD) for tribovoltaic nanogenerators (TVNGs), anchored in the maximum achievable output energy as defined by a comprehensive mathematical model that rigorously characterizes mechano-induced electron-hole transport within the space charge region. The energy conversion mechanism in TVNGs encompasses two distinct stages: first, mechanical energy is converted into potential energy through electron-hole pair generation; subsequently, the intrinsic electric field of the dynamic p-n junction separates and transports these charges, resulting in electrical output. Dynamic capacitance, which arises from spatial charge separation within the space charge region, fundamentally governs rectification behavior, phase lag, and amplitude attenuation under high-frequency operation. These effects are effectively captured using a transient equivalent circuit model composed of a current source, diode, and voltage-dependent capacitor. The defined FOMD is explicitly formulated as a function of short-circuit charge (QSC), open-circuit voltage (VOC), and mechano-induced charge (Qm).
{"title":"Figure-of-merit for tribovoltaic nanogenerators","authors":"Xin Guo, Shilong Wang, Di Wei, Chi Zhang, Shuge Dai, Liming Ding, Zhong Lin Wang, Jiajia Shao","doi":"10.1016/j.matt.2025.102580","DOIUrl":"https://doi.org/10.1016/j.matt.2025.102580","url":null,"abstract":"This work provides a device figure-of-merit (FOM<sub>D</sub>) for tribovoltaic nanogenerators (TVNGs), anchored in the maximum achievable output energy as defined by a comprehensive mathematical model that rigorously characterizes mechano-induced electron-hole transport within the space charge region. The energy conversion mechanism in TVNGs encompasses two distinct stages: first, mechanical energy is converted into potential energy through electron-hole pair generation; subsequently, the intrinsic electric field of the dynamic p-n junction separates and transports these charges, resulting in electrical output. Dynamic capacitance, which arises from spatial charge separation within the space charge region, fundamentally governs rectification behavior, phase lag, and amplitude attenuation under high-frequency operation. These effects are effectively captured using a transient equivalent circuit model composed of a current source, diode, and voltage-dependent capacitor. The defined FOM<sub>D</sub> is explicitly formulated as a function of short-circuit charge (<em>Q</em><sub>SC</sub>), open-circuit voltage (<em>V</em><sub>OC</sub>), and mechano-induced charge (<em>Q</em><sub>m</sub>).","PeriodicalId":388,"journal":{"name":"Matter","volume":"126 1","pages":""},"PeriodicalIF":18.9,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146122438","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102519
Abhishek Soni , Siwei Ma , Karry Ocean , Kevan Dettelbach , Daniel Lin , Connor C. Rupnow , Mehrdad Mokhtari , Christopher E.B. Waizenegger , Giuseppe V. Crescenzo , Curtis P. Berlinguette
We introduce AdaCarbon, a high-throughput automation system designed to accelerate the development of GDEs for CO2 electrolysis. AdaCarbon consists of seven collaborative robots that automate GDE fabrication, characterization, and zero-gap CO2 electrolysis testing. Using this platform, we fabricated and tested 90 GDEs with varying Cu–Ag metal compositions and Nafion-Sustainion ionomer bilayers to optimize ethylene production at 200 mA cm−2. Our results show that higher Cu and Nafion content increased ethylene selectivity by 5%–9%. Furthermore, AdaCarbon accelerates GDE development by a factor of three compared to manual workflows, demonstrating its potential to significantly enhance CO2 electrolysis research.
我们推出了adaccarbon，一个高通量自动化系统，旨在加速二氧化碳电解gde的发展。adaccarbon由七个协作机器人组成，这些机器人可以自动化GDE制造、表征和零间隙二氧化碳电解测试。利用该平台，我们制作并测试了90种具有不同Cu-Ag金属成分和钠离子维持离子双分子层的gde，以优化200 mA cm - 2下的乙烯产量。结果表明，Cu和Nafion含量的增加使乙烯选择性提高了5% ~ 9%。此外，与人工工作流程相比，adaccarbon将GDE的开发速度提高了三倍，这表明它有可能显著提高二氧化碳电解研究的水平。
{"title":"Accelerated optimization of gas diffusion electrodes for CO2 electrolyzers","authors":"Abhishek Soni , Siwei Ma , Karry Ocean , Kevan Dettelbach , Daniel Lin , Connor C. Rupnow , Mehrdad Mokhtari , Christopher E.B. Waizenegger , Giuseppe V. Crescenzo , Curtis P. Berlinguette","doi":"10.1016/j.matt.2025.102519","DOIUrl":"10.1016/j.matt.2025.102519","url":null,"abstract":"<div><div>We introduce AdaCarbon, a high-throughput automation system designed to accelerate the development of GDEs for CO<sub>2</sub> electrolysis. AdaCarbon consists of seven collaborative robots that automate GDE fabrication, characterization, and zero-gap CO<sub>2</sub> electrolysis testing. Using this platform, we fabricated and tested 90 GDEs with varying Cu–Ag metal compositions and Nafion-Sustainion ionomer bilayers to optimize ethylene production at 200 mA cm<sup>−2</sup>. Our results show that higher Cu and Nafion content increased ethylene selectivity by 5%–9%. Furthermore, AdaCarbon accelerates GDE development by a factor of three compared to manual workflows, demonstrating its potential to significantly enhance CO<sub>2</sub> electrolysis research.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102519"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145428207","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102522
Yierfan Maierdan , In Kuk Kang , Jae Hong Kim , Shiho Kawashima
Natural soils form hierarchical structures through physicochemical self-assembly—a principle that can be harnessed to design sustainable, high-performance building materials. We present a scalable approach that tunes kaolinite self-assembly via controlled chemical environment and guar gum (GG) addition, enhancing strength while retaining 3D printability. Physicochemical, rheological, and mechanical analyses show that pH regulates clay self-assembly by altering particle surface charge, whereas GG restructures networks through polymer bridging. Multiscale characterization reveals that although similar microstructures can develop across compositions when stabilized with sufficient biopolymer at different pH, the pathways leading to their formation differ. Networks are formed primarily through colloidal interactions (van der Waals and electrostatic forces) or induced by biopolymer bridging. Despite appearing structurally similar, biopolymer-assembled networks exhibit significantly greater strength—exceeding 110% improvement—compared to those formed through colloidal interactions. These results highlight that the origin of microstructure critically governs performance, introducing a new designing principle for sustainable, printable materials.
{"title":"Tuning clay self-assembly for 3D printing of bio-stabilized earthen materials","authors":"Yierfan Maierdan , In Kuk Kang , Jae Hong Kim , Shiho Kawashima","doi":"10.1016/j.matt.2025.102522","DOIUrl":"10.1016/j.matt.2025.102522","url":null,"abstract":"<div><div>Natural soils form hierarchical structures through physicochemical self-assembly—a principle that can be harnessed to design sustainable, high-performance building materials. We present a scalable approach that tunes kaolinite self-assembly via controlled chemical environment and guar gum (GG) addition, enhancing strength while retaining 3D printability. Physicochemical, rheological, and mechanical analyses show that pH regulates clay self-assembly by altering particle surface charge, whereas GG restructures networks through polymer bridging. Multiscale characterization reveals that although similar microstructures can develop across compositions when stabilized with sufficient biopolymer at different pH, the pathways leading to their formation differ. Networks are formed primarily through colloidal interactions (van der Waals and electrostatic forces) or induced by biopolymer bridging. Despite appearing structurally similar, biopolymer-assembled networks exhibit significantly greater strength—exceeding 110% improvement—compared to those formed through colloidal interactions. These results highlight that the origin of microstructure critically governs performance, introducing a new designing principle for sustainable, printable materials.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102522"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145508835","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102604
Sebastian Fernández , Claire E. Anderson , Austin Patel , Chloe Wick , Sarah A. Lowry , Elana M.G. Chan , Da Lin , Camila Van Oost , Gang Zheng
Applying to graduate school is challenging, as applicants need to garner enough research experience to submit compelling applications, understand unspoken expectations related to graduate education from trusted mentors, and craft the various components needed for an application. These difficulties are further amplified for underserved students who may lack support in navigating these obstacles, given a shortage of representation in engineering academia. In this Matter of Opinion, we showcase the efforts of the Stanford Engineering Research Introductions Organization (SERIO) to address challenges related to graduate school applications and analyze its impact on the affiliated undergraduate students, including those who have successfully applied to graduate school. Altogether, we emphasize the benefit of creating SERIO-like organizations across the US to support future generations of graduate students from all backgrounds.
{"title":"Early exposure to research and sustained guidance improves prospects for graduate school admissions","authors":"Sebastian Fernández , Claire E. Anderson , Austin Patel , Chloe Wick , Sarah A. Lowry , Elana M.G. Chan , Da Lin , Camila Van Oost , Gang Zheng","doi":"10.1016/j.matt.2025.102604","DOIUrl":"10.1016/j.matt.2025.102604","url":null,"abstract":"<div><div>Applying to graduate school is challenging, as applicants need to garner enough research experience to submit compelling applications, understand unspoken expectations related to graduate education from trusted mentors, and craft the various components needed for an application. These difficulties are further amplified for underserved students who may lack support in navigating these obstacles, given a shortage of representation in engineering academia. In this Matter of Opinion, we showcase the efforts of the Stanford Engineering Research Introductions Organization (SERIO) to address challenges related to graduate school applications and analyze its impact on the affiliated undergraduate students, including those who have successfully applied to graduate school. Altogether, we emphasize the benefit of creating SERIO-like organizations across the US to support future generations of graduate students from all backgrounds.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102604"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116695","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102578
Hai Lin , Dongsheng Wen , Katie Scott , Jorge Cardenas-Gamboa , Iñigo Robredo , Batoul Almoussawi , Craig M. Robertson , Marco Zanella , Elisabetta Mariani , Aimo Winkelmann , Thomas Beesley , Luke M. Daniels , Michael W. Gaultois , Matthew S. Dyer , John B. Claridge , Maia G. Vergniory , Quinn D. Gibson , Claudia Felser , Matthew J. Rosseinsky , Jonathan Alaria
Electronic dimensionality is ordinarily controlled by restricting orbital overlap through structure, exemplified by the weak interlayer bonding in van der Waals materials. HfSn2 has strongly three-dimensional orbital overlap expressed in its bonding but displays robust 2D transport from open orbits at the Fermi surface. These states originate in the honeycomb layers that are present in HfSn2 but hidden by the three-dimensional bonding. Chiral stacking of the honeycomb protects its electronic states in the presence of the strong interlayer orbital overlap. These states dominate macroscopic transport because the inversion symmetry breaking imposed by the stacking enhances mobility by locating Type II Weyl points on the 2D Fermi surface. Structural and electronic dimensionality can be decoupled by control of the arrangement of extended low-dimensional motifs to retain their electronic structures and augment functionality through the symmetry of the resulting scaffolds. This expands the design space for low-dimensional electronic materials beyond layered systems.
{"title":"Decoupling structural and electronic dimensionality: 2D transport in a 3D honeycomb chiral stacking","authors":"Hai Lin , Dongsheng Wen , Katie Scott , Jorge Cardenas-Gamboa , Iñigo Robredo , Batoul Almoussawi , Craig M. Robertson , Marco Zanella , Elisabetta Mariani , Aimo Winkelmann , Thomas Beesley , Luke M. Daniels , Michael W. Gaultois , Matthew S. Dyer , John B. Claridge , Maia G. Vergniory , Quinn D. Gibson , Claudia Felser , Matthew J. Rosseinsky , Jonathan Alaria","doi":"10.1016/j.matt.2025.102578","DOIUrl":"10.1016/j.matt.2025.102578","url":null,"abstract":"<div><div>Electronic dimensionality is ordinarily controlled by restricting orbital overlap through structure, exemplified by the weak interlayer bonding in van der Waals materials. HfSn<sub>2</sub> has strongly three-dimensional orbital overlap expressed in its bonding but displays robust 2D transport from open orbits at the Fermi surface. These states originate in the honeycomb layers that are present in HfSn<sub>2</sub> but hidden by the three-dimensional bonding. Chiral stacking of the honeycomb protects its electronic states in the presence of the strong interlayer orbital overlap. These states dominate macroscopic transport because the inversion symmetry breaking imposed by the stacking enhances mobility by locating Type II Weyl points on the 2D Fermi surface. Structural and electronic dimensionality can be decoupled by control of the arrangement of extended low-dimensional motifs to retain their electronic structures and augment functionality through the symmetry of the resulting scaffolds. This expands the design space for low-dimensional electronic materials beyond layered systems.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102578"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116747","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}
Pub Date : 2026-02-04DOI: 10.1016/j.matt.2025.102520
Weiqi Yuan (原伟祺) , Jiaxiang Wang (王家祥) , Lingrui Wang (王玲瑞) , Xueqian Wu (吴学仟) , Yifang Yuan (袁亦方) , Dianxing Ju (居佃兴) , Kai Wang (王凯) , Haizhong Guo (郭海中) , Bo Zou (邹勃)
Bimetallic halides combine the merits of single-metal halides and multi-metallic systems, offering tunable emission, high efficiency, and stability for optoelectronics. We designed a new bimetallic halide, (C8H20N)4MnBiCl9, and investigated its optical and physical properties under extreme stimuli. With pressure up to 10.0 GPa, its emission color shifts from blue (ambient) to red, and intensity increases at lower temperature. A high photoluminescence quantum yield (PLQY) of ∼58% with green emission is achieved at 1.8 GPa, over 5-fold higher than ambient. Under ambient pressure, strong emission response is observed across 130–470 K, showing dual pressure- and temperature-dependent responsiveness. Pressure-induced distortions of [BiCl5]2− and [MnCl4]2− polyhedra, along with reduced interunit distance, enhance energy transfer, yielding stronger emission and color shifts. These properties highlight its potential for information encryption, optical sensing, and system calibration in extreme environments.
{"title":"Dual-stimuli tunable multi-color emission and energy transfer in a manganese bismuth bimetallic halide","authors":"Weiqi Yuan (原伟祺) , Jiaxiang Wang (王家祥) , Lingrui Wang (王玲瑞) , Xueqian Wu (吴学仟) , Yifang Yuan (袁亦方) , Dianxing Ju (居佃兴) , Kai Wang (王凯) , Haizhong Guo (郭海中) , Bo Zou (邹勃)","doi":"10.1016/j.matt.2025.102520","DOIUrl":"10.1016/j.matt.2025.102520","url":null,"abstract":"<div><div>Bimetallic halides combine the merits of single-metal halides and multi-metallic systems, offering tunable emission, high efficiency, and stability for optoelectronics. We designed a new bimetallic halide, (C<sub>8</sub>H<sub>20</sub>N)<sub>4</sub>MnBiCl<sub>9</sub>, and investigated its optical and physical properties under extreme stimuli. With pressure up to 10.0 GPa, its emission color shifts from blue (ambient) to red, and intensity increases at lower temperature. A high photoluminescence quantum yield (PLQY) of ∼58% with green emission is achieved at 1.8 GPa, over 5-fold higher than ambient. Under ambient pressure, strong emission response is observed across 130–470 K, showing dual pressure- and temperature-dependent responsiveness. Pressure-induced distortions of [BiCl<sub>5</sub>]<sup>2−</sup> and [MnCl<sub>4</sub>]<sup>2−</sup> polyhedra, along with reduced interunit distance, enhance energy transfer, yielding stronger emission and color shifts. These properties highlight its potential for information encryption, optical sensing, and system calibration in extreme environments.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102520"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145428204","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}
Two-dimensional (2D) materials have emerged as promising electrocatalysts due to their precise surface structure, large specific surface areas, and highly tunable surface chemistry. Nevertheless, their performance is often constrained by limited active site density and suboptimal electron transfer dynamics. Compared to conventional crystalline materials, amorphization of 2D materials offers a compelling alternative for enhancing electrocatalytic efficiency, as it facilitates the creation of abundant active sites and confers a more adaptable electronic structure. With rapid progress being made in synthetic methodologies for 2D amorphous electrocatalysts and their growing applicability across diverse electrocatalytic reactions, this review aims to provide a timely and comprehensive overview of recent developments in this field. First, the fundamental merits of amorphization are discussed from the perspective of electrocatalytic mechanisms. Second, advanced synthesis and modification strategies for 2D amorphous electrocatalysts are systematically summarized. Subsequently, their applications in various electrocatalytic systems are outlined. Finally, future research directions and potential challenges for 2D amorphous electrocatalysts are proposed based on current technological and scientific developments. This review underscores the critical role of atomically precise engineering and mechanistic insights in guiding the rational design and application development of high-performance 2D amorphous electrocatalysts.
{"title":"Cutting-edge synthesis and electrocatalytic engineering of two-dimensional amorphous materials","authors":"Mingyuan Xu (许明渊) , Kexin Yin (尹可心) , Huiqing Wang (王慧青) , Jinlong Zheng (郑金龙) , XiongTao Lv (吕雄涛) , Kexin Wu (吴可欣) , Binbin Jia (贾彬彬) , Tianyi Ma (马天翼) , Liqun Ye (叶立群)","doi":"10.1016/j.matt.2025.102617","DOIUrl":"10.1016/j.matt.2025.102617","url":null,"abstract":"<div><div>Two-dimensional (2D) materials have emerged as promising electrocatalysts due to their precise surface structure, large specific surface areas, and highly tunable surface chemistry. Nevertheless, their performance is often constrained by limited active site density and suboptimal electron transfer dynamics. Compared to conventional crystalline materials, amorphization of 2D materials offers a compelling alternative for enhancing electrocatalytic efficiency, as it facilitates the creation of abundant active sites and confers a more adaptable electronic structure. With rapid progress being made in synthetic methodologies for 2D amorphous electrocatalysts and their growing applicability across diverse electrocatalytic reactions, this review aims to provide a timely and comprehensive overview of recent developments in this field. First, the fundamental merits of amorphization are discussed from the perspective of electrocatalytic mechanisms. Second, advanced synthesis and modification strategies for 2D amorphous electrocatalysts are systematically summarized. Subsequently, their applications in various electrocatalytic systems are outlined. Finally, future research directions and potential challenges for 2D amorphous electrocatalysts are proposed based on current technological and scientific developments. This review underscores the critical role of atomically precise engineering and mechanistic insights in guiding the rational design and application development of high-performance 2D amorphous electrocatalysts.</div></div>","PeriodicalId":388,"journal":{"name":"Matter","volume":"9 2","pages":"Article 102617"},"PeriodicalIF":17.5,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116704","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}
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