Nature nanotechnology最新文献_第10页

Momentum tunnelling between nanoscale liquid flows 纳米级液体流动之间的动量隧穿

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2025-01-02 DOI: 10.1038/s41565-024-01842-8

Baptiste Coquinot, Anna T. Bui, Damien Toquer, Angelos Michaelides, Nikita Kavokine, Stephen J. Cox, Lydéric Bocquet

{"title":"Momentum tunnelling between nanoscale liquid flows","authors":"Baptiste Coquinot, Anna T. Bui, Damien Toquer, Angelos Michaelides, Nikita Kavokine, Stephen J. Cox, Lydéric Bocquet","doi":"10.1038/s41565-024-01842-8","DOIUrl":"10.1038/s41565-024-01842-8","url":null,"abstract":"The world of nanoscales in fluidics is the frontier where the continuum of fluid mechanics meets the atomic, and even quantum, nature of matter. While water dynamics remains largely classical under extreme confinement, several experiments have recently reported coupling between water transport and the electronic degrees of freedom of the confining materials. This avenue prompts us to reconsider nanoscale hydrodynamic flows under the perspective of interacting excitations, akin to condensed matter frameworks. Here we show, using a combination of many-body theory and molecular simulations, that the flow of a liquid can induce the flow of another liquid behind a separating wall, at odds with the prediction of continuum hydrodynamics. We further show that the range of this ‘flow tunnelling’ can be tuned through the solid’s electronic excitations, with a maximum occurring when these are at resonance with the liquid’s charge density fluctuations. Flow tunnelling is expected to play a role in global transport across nanoscale fluidic networks, such as lamellar graphene oxide or MXene membranes. It further suggests exploiting the electronic properties of the confining walls for manipulating liquids via their dielectric spectra, beyond the nature and characteristics of individual molecules. A liquid flow can cross a solid wall, at odds with classical hydrodynamics, thanks to couplings between the liquid’s fluctuations and the electronic excitations of the solid inducing a momentum tunnelling.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 3","pages":"397-403"},"PeriodicalIF":38.1,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911606","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

Renewable hydrogen is having a moment 可再生氢正大行其道

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-23 DOI: 10.1038/s41565-024-01838-4

Katherine Bourzac

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Solar cells for stored energy 储存能量的太阳能电池

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-23 DOI: 10.1038/s41565-024-01837-5

Dirk Eidemüller

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The challenge of studying interfaces in battery materials 研究电池材料界面的挑战

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-20 DOI: 10.1038/s41565-024-01836-6

Claire Villevieille

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Avalanche multiplication for quantum dot photodetectors with ultrahigh detectivity 用于具有超高探测率的量子点光电探测器的雪崩倍增技术

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-19 DOI: 10.1038/s41565-024-01832-w

引用次数: 0

Vacancy-rich β-Li3N solid-state electrolyte 富空位β-Li3N固态电解质

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-18 DOI: 10.1038/s41565-024-01835-7

Wei Luo, Yunhui Huang

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Empowering spintronics with antiferromagnetic diodes 用反铁磁二极管增强自旋电子学

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-18 DOI: 10.1038/s41565-024-01840-w

Giovanni Finocchio, Riccardo Tomasello, Mario Carpentieri

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Ultrahigh-gain colloidal quantum dot infrared avalanche photodetectors 超高增益胶体量子点红外雪崩光电探测器

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-18 DOI: 10.1038/s41565-024-01831-x

Byeongsu Kim, Sang Yeon Lee, Hyunseok Ko, Jihyung Lee, Hyejeong Song, Sungjun Cho, Yun Hoo Kim, Min-Ho Lee, Jung-Yong Lee

{"title":"Ultrahigh-gain colloidal quantum dot infrared avalanche photodetectors","authors":"Byeongsu Kim, Sang Yeon Lee, Hyunseok Ko, Jihyung Lee, Hyejeong Song, Sungjun Cho, Yun Hoo Kim, Min-Ho Lee, Jung-Yong Lee","doi":"10.1038/s41565-024-01831-x","DOIUrl":"10.1038/s41565-024-01831-x","url":null,"abstract":"Colloidal quantum dots (CQDs) are promising for infrared photodetectors with high detectivity and low-cost production. Although CQDs enable photoinduced charge multiplication, thermal noise in low-bandgap materials limits their performance in IR detectors. Here we present a pioneering architecture of a CQD-based infrared photodetector that uses kinetically pumped avalanche multiplication. By applying a strong electric field to a thick CQD layer (>540 nm), electrons acquire kinetic energy beyond the bandgap of the CQD material, initiating kinetically pumped charge multiplication. Optimizing the dot-to-dot distance to approximately 4.1 nm improves performance by balancing impact ionization and electron hopping. Our optimized CQD-based infrared photodetector achieved a maximum multiplication gain of 85 and a peak detectivity of 1.4 × 1014 Jones at 940 nm. This architecture offers potential for single-photon detection and ultrahigh detectivity applications. Kinetically pumped avalanche multiplication has been demonstrated in a colloidal quantum dot photodetector, achieving an 85-fold multiplication gain. This proposes new opportunities for developing colloidal quantum dot single-photon detectors.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 2","pages":"237-245"},"PeriodicalIF":38.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841160","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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The importance of basic electrochemistry terminology in the era of interdisciplinary battery research 基础电化学术语在跨学科电池研究时代的重要性

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-12 DOI: 10.1038/s41565-024-01844-6

引用次数: 0

Advanced characterization of confined electrochemical interfaces in electrochemical capacitors 电化学电容器中受限电化学界面的高级表征

IF 38.1 1区材料科学

Nature nanotechnology Pub Date : 2024-12-05 DOI: 10.1038/s41565-024-01821-z

Kangkang Ge, Hui Shao, Zifeng Lin, Pierre-Louis Taberna, Patrice Simon

{"title":"Advanced characterization of confined electrochemical interfaces in electrochemical capacitors","authors":"Kangkang Ge, Hui Shao, Zifeng Lin, Pierre-Louis Taberna, Patrice Simon","doi":"10.1038/s41565-024-01821-z","DOIUrl":"10.1038/s41565-024-01821-z","url":null,"abstract":"The advancement of high-performance fast-charging materials has significantly propelled progress in electrochemical capacitors (ECs). Electrochemical capacitors store charges at the nanoscale electrode material–electrolyte interface, where the charge storage and transport mechanisms are mediated by factors such as nanoconfinement, local electrode structure, surface properties and non-electrostatic ion–electrode interactions. This Review offers a comprehensive exploration of probing the confined electrochemical interface using advanced characterization techniques. Unlike classical two-dimensional (2D) planar interfaces, partial desolvation and image charges play crucial roles in effective charge storage under nanoconfinement in porous materials. This Review also highlights the potential of zero charge as a key design principle driving nanoscale ion fluxes and carbon–electrolyte interactions in materials such as 2D and three-dimensional (3D) porous carbons. These considerations are crucial for developing efficient and rapid energy storage solutions for a wide range of applications. This Review clarifies the charge storage and transport mechanisms at confined electrochemical interfaces in electrochemical capacitors, emphasizing their importance in fast-charging energy storage applications.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"20 2","pages":"196-208"},"PeriodicalIF":38.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777096","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