Nature Materials最新文献_第10页

Perovskite waveguides with predefined shapes for nonlinear photonics 用于非线性光子学的具有预定形状的 Perovskite 波导。

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-27 DOI: 10.1038/s41563-024-01994-x

引用次数: 0

Twist-angle-tunable spin texture in WSe2/graphene van der Waals heterostructures WSe2/ 石墨烯范德华异质结构中的扭角可调自旋纹理。

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-27 DOI: 10.1038/s41563-024-01985-y

Haozhe Yang, Beatriz Martín-García, Jozef Kimák, Eva Schmoranzerová, Eoin Dolan, Zhendong Chi, Marco Gobbi, Petr Němec, Luis E. Hueso, Fèlix Casanova

引用次数: 0

Free-space direct nanoscale 3D printing of metals and alloys enabled by two-photon decomposition and ultrafast optical trapping 利用双光子分解和超快光学捕获技术实现金属和合金的自由空间直接纳米级三维打印

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-21 DOI: 10.1038/s41563-024-01984-z

Yaoyu Wang, Chenqi Yi, Wenxiang Tian, Feng Liu, Gary J. Cheng

{"title":"Free-space direct nanoscale 3D printing of metals and alloys enabled by two-photon decomposition and ultrafast optical trapping","authors":"Yaoyu Wang, Chenqi Yi, Wenxiang Tian, Feng Liu, Gary J. Cheng","doi":"10.1038/s41563-024-01984-z","DOIUrl":"10.1038/s41563-024-01984-z","url":null,"abstract":"Nanoscale three-dimensional (3D) printing of metals and alloys has faced challenges in speed, miniaturization and deficiency in material properties. Traditional nanomanufacturing relies on lithographic methods with material constraints, limited resolution and slow layer-by-layer processing. This work introduces polymer-free techniques using two-photon decomposition and optical force trapping for free-space direct 3D printing of metals, metal oxides and multimetallic alloys with resolutions beyond optical limits. This method involves the two-photon decomposition of metal atoms from precursors, rapid assembly into nanoclusters via optical forces and ultrafast laser sintering, yielding dense, smooth nanostructures. Enhanced near-field optical forces from laser-induced localized surface plasmon resonance facilitate nanocluster aggregation. Our approach eliminates the need for organic materials, layer-by-layer printing and complex post-processing. Printed Mo nanowires show an excellent mechanical performance, closely resembling the behaviour of single crystals, while Mo–Co–W alloy nanowires outperform Mo nanowires. This innovation promises the customizable 3D nanoprinting of high-quality metals and metal oxides, impacting nanoelectronics, nanorobotics and advanced chip manufacturing. A polymer-free 3D printing technique of metals and alloys, using two-photon decomposition and optical force trapping, is presented. It achieves dense and smooth nanostructures with a resolution beyond optical limits.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 12","pages":"1645-1653"},"PeriodicalIF":37.2,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142013825","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

Predesigned perovskite crystal waveguides for room-temperature exciton–polariton condensation and edge lasing 用于室温激子-极化子凝聚和边缘激光的预设计过氧化物晶体波导

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-19 DOI: 10.1038/s41563-024-01980-3

Mateusz Kędziora, Andrzej Opala, Rosanna Mastria, Luisa De Marco, Mateusz Król, Karolina Łempicka-Mirek, Krzysztof Tyszka, Marek Ekielski, Marek Guziewicz, Karolina Bogdanowicz, Anna Szerling, Helgi Sigurðsson, Tomasz Czyszanowski, Jacek Szczytko, Michał Matuszewski, Daniele Sanvitto, Barbara Piętka

{"title":"Predesigned perovskite crystal waveguides for room-temperature exciton–polariton condensation and edge lasing","authors":"Mateusz Kędziora, Andrzej Opala, Rosanna Mastria, Luisa De Marco, Mateusz Król, Karolina Łempicka-Mirek, Krzysztof Tyszka, Marek Ekielski, Marek Guziewicz, Karolina Bogdanowicz, Anna Szerling, Helgi Sigurðsson, Tomasz Czyszanowski, Jacek Szczytko, Michał Matuszewski, Daniele Sanvitto, Barbara Piętka","doi":"10.1038/s41563-024-01980-3","DOIUrl":"10.1038/s41563-024-01980-3","url":null,"abstract":"Perovskite crystals—with their exceptional nonlinear optical properties, lasing and waveguiding capabilities—offer a promising platform for integrated photonic circuitry within the strong-coupling regime at room temperature. Here we demonstrate a versatile template-assisted method to efficiently fabricate large-scale waveguiding perovskite crystals of arbitrarily predefined geometry such as microwires, couplers and splitters. We non-resonantly stimulate a condensate of waveguided exciton–polaritons resulting in bright polariton lasing from the transverse interfaces and corners of our perovskite microstructures. Large blueshifts with excitation power and high mutual coherence between the different edge and corner lasing signals are detected in the far-field photoluminescence, implying that a spatially extended condensates of coherent polaritons has formed. The condensate polaritons are found to propagate over long distances in the wires from the excitation spot and can couple to neighbouring wires through large air gaps, making our platform promising for integrated polaritonic circuitry and on-chip optical devices with strong nonlinearities. A method to fabricate arbitrarily shaped perovskite crystals is measured, apt for the realization of integrated photonic circuitry, demonstrating room-temperature waveguided exciton–polariton condensation and bright polariton edge lasing.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 11","pages":"1515-1522"},"PeriodicalIF":37.2,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142002708","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 nuclear jamming transition in vertebrate organogenesis 脊椎动物器官形成过程中的核干扰转变

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-12 DOI: 10.1038/s41563-024-01972-3

Sangwoo Kim, Rana Amini, Shuo-Ting Yen, Petr Pospíšil, Arthur Boutillon, Ilker Ali Deniz, Otger Campàs

{"title":"A nuclear jamming transition in vertebrate organogenesis","authors":"Sangwoo Kim, Rana Amini, Shuo-Ting Yen, Petr Pospíšil, Arthur Boutillon, Ilker Ali Deniz, Otger Campàs","doi":"10.1038/s41563-024-01972-3","DOIUrl":"10.1038/s41563-024-01972-3","url":null,"abstract":"Jamming of cell collectives and associated rigidity transitions have been shown to play a key role in tissue dynamics, structure and morphogenesis. Cellular jamming is controlled by cellular density and the mechanics of cell–cell contacts. However, the contribution of subcellular organelles to the physical state of the emergent tissue is unclear. Here we report a nuclear jamming transition in zebrafish retina and brain tissues, where physical interactions between highly packed nuclei restrict cellular movements and control tissue mechanics and architecture. Computational modelling suggests that the nuclear volume fraction and anisotropy of cells control the emerging tissue physical state. Analysis of tissue architecture, mechanics and nuclear movements during eye development show that retina tissues undergo a nuclear jamming transition as they form, with increasing nuclear packing leading to more ordered cellular arrangements, reminiscent of the crystalline cellular packings in the functional adult eye. Our results reveal an important role of the cell nucleus in tissue mechanics and architecture. Developing zebrafish retina and brain tissues undergo a nuclear jamming transition that induces crystalline-like cellular ordering, with the emergent tissue stiffness controlled by nuclear mechanics.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 11","pages":"1592-1599"},"PeriodicalIF":37.2,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141918867","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

Ultraflat single-crystal hexagonal boron nitride for wafer-scale integration of a 2D-compatible high-κ metal gate 用于晶圆级集成二维兼容高κ金属栅极的超扁平单晶六方氮化硼

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-12 DOI: 10.1038/s41563-024-01968-z

Yani Wang, Chao Zhao, Xin Gao, Liming Zheng, Jun Qian, Xiaoyin Gao, Jiade Li, Junchuan Tang, Congwei Tan, Jiahao Wang, Xuetao Zhu, Jiandong Guo, Zhongfan Liu, Feng Ding, Hailin Peng

{"title":"Ultraflat single-crystal hexagonal boron nitride for wafer-scale integration of a 2D-compatible high-κ metal gate","authors":"Yani Wang, Chao Zhao, Xin Gao, Liming Zheng, Jun Qian, Xiaoyin Gao, Jiade Li, Junchuan Tang, Congwei Tan, Jiahao Wang, Xuetao Zhu, Jiandong Guo, Zhongfan Liu, Feng Ding, Hailin Peng","doi":"10.1038/s41563-024-01968-z","DOIUrl":"10.1038/s41563-024-01968-z","url":null,"abstract":"Hexagonal boron nitride (hBN) has emerged as a promising protection layer for dielectric integration in the next-generation large-scale integrated electronics. Although numerous efforts have been devoted to growing single-crystal hBN film, wafer-scale ultraflat hBN has still not been achieved. Here, we report the epitaxial growth of 4 in. ultraflat single-crystal hBN on Cu0.8Ni0.2(111)/sapphire wafers. The strong coupling between hBN and Cu0.8Ni0.2(111) suppresses the formation of wrinkles and ensures the seamless stitching of parallelly aligned hBN domains, resulting in an ultraflat single-crystal hBN film on a wafer scale. Using the ultraflat hBN as a protective layer, we integrate the wafer-scale ultrathin high-κ dielectrics onto two-dimensional (2D) materials with a damage-free interface. The obtained hBN/HfO2 composite dielectric exhibits an ultralow current leakage (2.36 × 10−6 A cm−2) and an ultrathin equivalent oxide thickness of 0.52 nm, which meets the targets of the International Roadmap for Devices and Systems. Our findings pave the way to the synthesis of ultraflat 2D materials and integration of future 2D electronics. The synthesis of wafer-scale ultraflat single-crystal hexagonal boron nitride film is realized by strong coupling to a Cu0.8Ni0.2(111)/sapphire wafer, providing a potential method for industry-compatible high-κ dielectric integration in two-dimensional electronics.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 11","pages":"1495-1501"},"PeriodicalIF":37.2,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141918865","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

Substrates mimicking the blastocyst geometry revert pluripotent stem cell to naivety 模拟胚泡几何形状的基质能使多能干细胞恢复天真状态

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-12 DOI: 10.1038/s41563-024-01971-4

Xun Xu, Weiwei Wang, Yue Liu, Johan Bäckemo, Matthias Heuchel, Wei Wang, Yan Nie, Imran Iqbal, Karl Kratz, Andreas Lendlein, Nan Ma

{"title":"Substrates mimicking the blastocyst geometry revert pluripotent stem cell to naivety","authors":"Xun Xu, Weiwei Wang, Yue Liu, Johan Bäckemo, Matthias Heuchel, Wei Wang, Yan Nie, Imran Iqbal, Karl Kratz, Andreas Lendlein, Nan Ma","doi":"10.1038/s41563-024-01971-4","DOIUrl":"10.1038/s41563-024-01971-4","url":null,"abstract":"Naive pluripotent stem cells have the highest developmental potential but their in vivo existence in the blastocyst is transient. Here we report a blastocyst motif substrate for the in vitro reversion of mouse and human pluripotent stem cells to a naive state. The substrate features randomly varied microstructures, which we call motifs, mimicking the geometry of the blastocyst. Motifs representing mouse-blastocyst-scaled curvature ranging between 15 and 62 mm−1 were the most efficient in promoting reversion to naivety, as determined by time-resolved correlative analysis. In these substrates, apical constriction enhances E-cadherin/RAC1 signalling and activates the mechanosensitive nuclear transducer YAP, promoting the histone modification of pluripotency genes. This results in enhanced levels of pluripotency transcription factor NANOG, which persist even after cells are removed from the substrate. Pluripotent stem cells cultured in blastocyst motif substrates display a higher development potential in generating embryoid bodies and teratomas. These findings shed light on naivety-promoting substrate design and their large-scale implementation. Substrates with blastocyst-like microstructures effectively revert primed pluripotent stem cells to naivety by promoting cell–cell apical constriction and mechanoinduced epigenetic activation of naive pluripotency genes.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"23 12","pages":"1748-1758"},"PeriodicalIF":37.2,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41563-024-01971-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141918789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crossing the Coulomb gap in semiconducting polymers 跨越半导体聚合物中的库仑间隙

IF 37.2 1区材料科学

Nature Materials Pub Date : 2024-08-09 DOI: 10.1038/s41563-024-01965-2

C. Daniel Frisbie

引用次数: 0

Cavity-enhanced energy transport in molecular systems 分子系统中的空穴强化能量传输

IF 41.2 1区材料科学

Nature Materials Pub Date : 2024-08-09 DOI: 10.1038/s41563-024-01962-5

Gal Sandik, Johannes Feist, Francisco J. García-Vidal, Tal Schwartz

引用次数: 0

Transitioning metal–organic frameworks from the laboratory to market through applied research 通过应用研究将金属有机框架从实验室推向市场