Nano Letters最新文献_第9页

Atomic-ScaleMapping of an Emergent Interfacial Two-DimensionalElectron Gas at Anatase/LaAlO3 锐钛矿/LaAlO3界面二维电子气体的原子尺度映射

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-14 DOI: 10.1021/acs.nanolett.6c01308

Michael Oberaigner,Manuel Ederer,Sandeep K. Chaluvadi,Pasquale Orgiani,Regina Ciancio,Stefan Löffler,Gerald Kothleitner,Daniel Knez

{"title":"Atomic-Scale\u0000Mapping of an Emergent Interfacial Two-Dimensional\u0000Electron Gas at Anatase/LaAlO3","authors":"Michael Oberaigner,Manuel Ederer,Sandeep K. Chaluvadi,Pasquale Orgiani,Regina Ciancio,Stefan Löffler,Gerald Kothleitner,Daniel Knez","doi":"10.1021/acs.nanolett.6c01308","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c01308","url":null,"abstract":"Abstract Atomic-level insight into structure, charge distribution, chemistry, and electronic states is essential for understanding emergent properties at oxide interfaces. Here, we leverage the quasi-strain-free anatase TiO2/LaAlO3 interface as an ideal model system to decouple intrinsic polar discontinuities from complex strain artifacts. By combining atomic-resolution electron energy loss spectroscopy with integrated differential phase contrast, we spatially map the electronic states associated with the formation of a two-dimensional electron gas (2DEG). This correlative approach enables the direct real-space disentanglement of intrinsic 2DEG-related states from extrinsic Ti3+ defect states. Supported by density functional theory and inelastic scattering simulations, we reveal a physical superposition: the intrinsic polar electronic reconstruction anchors metallic states directly at the boundary, while oxygen vacancies accumulate further into the film, acting as a donor reservoir. This work not only resolves long-standing ambiguities regarding oxide interfacial conductivity but also provides a robust, transferable framework for related material systems.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"27 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149209322","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

Erbium Probes of Magnetic Order in a van der Waals Material 范德华材料中磁序铒探针

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-13 DOI: 10.1021/acs.nanolett.6c03698

Guadalupe García-Arellano,Gabriel I. López-Morales,Kang Xu,Samra Husremović,Jiayi Li,Arun Ramanathan,Xavier Roy,Cyrus E. Dreyer,Carlos A. Meriles

{"title":"Erbium Probes of Magnetic Order in a van der Waals Material","authors":"Guadalupe García-Arellano,Gabriel I. López-Morales,Kang Xu,Samra Husremović,Jiayi Li,Arun Ramanathan,Xavier Roy,Cyrus E. Dreyer,Carlos A. Meriles","doi":"10.1021/acs.nanolett.6c03698","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c03698","url":null,"abstract":"Embedded atomic emitters offer a complementary approach to characterizing magnetism in two-dimensional materials by accessing the magnetic environment from within. Here, we demonstrate that ion-implanted Er3+ centers act as internal optical probes in the van der Waals antiferromagnet CrSBr. Temperature-dependent telecom photoluminescence reveals signatures of the magnetic transition, persistent local magnetic behavior above the bulk Néel temperature, pronounced thermal hysteresis, and redistribution of optical spectral weight near the transition. Upon cooling, the Er resonances sharpen to the instrumental limit, pointing to remarkably homogeneous local environments despite implantation. Measurements spanning a 20-fold range of implantation fluence, structural characterization, and first-principles calculations suggest that the detected emission originates predominantly from an optically active subset of Er centers occupying well-defined environments and minimally perturbing the host magnetism. These results establish rare-earth defects as embedded probes of local magnetism and open opportunities for quantum-optical interrogation at individual lattice sites.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"43 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152132","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

Dielectric Interfaces Reshape Dynamic Single-Molecule Optical Fingerprints in Nanometer-Thick Polymer Films 介质界面重塑纳米厚聚合物薄膜中的动态单分子光学指纹

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-13 DOI: 10.1021/acs.nanolett.6c04137

Daniel Marx,David Malsbenden,Ivan Gligonov,Dominik Wöll,Jörg Enderlein,Oleksii Nevskyi

{"title":"Dielectric Interfaces Reshape Dynamic Single-Molecule Optical Fingerprints in Nanometer-Thick Polymer Films","authors":"Daniel Marx,David Malsbenden,Ivan Gligonov,Dominik Wöll,Jörg Enderlein,Oleksii Nevskyi","doi":"10.1021/acs.nanolett.6c04137","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c04137","url":null,"abstract":"Fluorescence lifetimes near dielectric interfaces depend on molecular dipole orientation, but this relationship becomes more complex when emitters are confined within finite nanometer-thick polymer films. Here, we combine radially polarized excitation imaging with time-correlated single-photon counting to follow the orientation and fluorescence lifetime of individual PDI molecules undergoing rotational motion in thin poly(n-butyl methacrylate) films. Orientation-sensitive fluorescence patterns were analyzed using vectorial wave-optical simulations, enabling dipole orientation and excited-state lifetime to be correlated over time for the same emitter. The lifetime–orientation relationships vary systematically with film thickness and between molecules within the same film. Electrodynamic calculations for the glass–polymer–air geometry reproduce the principal trends and show that the observed heterogeneity is consistent with different axial emitter positions. These results establish single molecular dipoles as probes of finite nanometer-thick dielectric environments.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"87 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152059","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

Photobattery Architectures to Suppress Charge Recombination 抑制电荷复合的光电电池结构

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-13 DOI: 10.1021/acs.nanolett.6c02373

Kohei Shimokawa,Byung-Man Kim,Arvind Pujari,Hooman Abbasi,Tetsu Ichitsubo,Michael De Volder

引用次数: 0

A Skin-likeHydrogel with Multidimensional Fillersfor Stable Human–Machine Interaction 具有多维填料的类皮肤水凝胶用于稳定的人机交互

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-13 DOI: 10.1021/acs.nanolett.6c03665

Shengxin Xiang,Lei Liu,Xiao Wei,Feixiang Gao,Yu Lin,Zhiwei Zhao,Xinkai Xie,Jun Wu

{"title":"A Skin-like\u0000Hydrogel with Multidimensional Fillers\u0000for Stable Human–Machine Interaction","authors":"Shengxin Xiang,Lei Liu,Xiao Wei,Feixiang Gao,Yu Lin,Zhiwei Zhao,Xinkai Xie,Jun Wu","doi":"10.1021/acs.nanolett.6c03665","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c03665","url":null,"abstract":"Abstract The deep integration of human–machine interface (HMI) technology and the Internet of Things (IoT) has imposed stringent new requirements for electronic skin (e-skin) in terms of flexibility, comfort, and high sensitivity. Herein we present a multiconductive network hydrogel e-skin (MCNHE-skin) based on a poly(vinyl alcohol) (PVA)/polyvinylpyrrolidone (PVP) dual-network matrix with polydopamine (PDA), carbon nanotubes (CNTs), and MXene as conductive fillers. The MCNHE-skin exhibits electrical conductivity (&lt;5 kΩ), high stretchability (∼650%), strong self-adhesion (∼19 kPa), and low modulus (∼3.6 kPa). These characteristics enable its successful application in multimodal sensing systems such as strain sensors, pressure sensors, triboelectric nanogenerators (TENGs), and physiological signal monitors. Furthermore, by integration with flexible printed circuit boards (FPCBs), MCNHE-skin is developed into smart wearable systems for noncontact HMI. The 0D/1D/2D synergistic conductive network presented in this hydrogel e-skin yields high-fidelity sensing and noncontact control capabilities, marking a significant step forward in the development of multifunctional wearable electronics.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"11 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149209324","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

Directional Manufacturing of Defect Mitigation and Large-Scale Single-Crystalline Metal Foils via Gas Flow Optimization toward Commercialization 定向制造的缺陷缓解和大规模单晶金属箔的气体流动优化走向商业化

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-13 DOI: 10.1021/acs.nanolett.6c03824

The-Hung Mai,Thi H. Ho,Shi-Hui Liu,Santhoshkumar S,Muhammad Adnan,Arvind Chandrasekar,Tuan V. Vu,Chien-Cheng Kuo,Hung-Duen Yang,Liuwen Chang,Wei-Lung Tseng,Trung Nguyen-Thoi,Chung-Li Dong,Phuong V. Pham

{"title":"Directional Manufacturing of Defect Mitigation and Large-Scale Single-Crystalline Metal Foils via Gas Flow Optimization toward Commercialization","authors":"The-Hung Mai,Thi H. Ho,Shi-Hui Liu,Santhoshkumar S,Muhammad Adnan,Arvind Chandrasekar,Tuan V. Vu,Chien-Cheng Kuo,Hung-Duen Yang,Liuwen Chang,Wei-Lung Tseng,Trung Nguyen-Thoi,Chung-Li Dong,Phuong V. Pham","doi":"10.1021/acs.nanolett.6c03824","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c03824","url":null,"abstract":"Single-crystalline metals, with their distinctive symmetries, are the ideal medium for high-order molecular arrangement and the diminishing of grain boundaries and defect sites coupled with high anisotropy. However, conventional synthesis via bulk growth or epitaxial deposition remains complex, costly, and difficult to scale. Here, we report a simple and inexpensive strategy as an alternative to conventional strategies for manufacturing single-crystalline metal foils. Miraculously, by miniaturization of grain boundaries and promoting surface energy minimization during the rotation of the crystal lattice followed by the consumption of neighboring grains, high-quality and large-scale single-crystalline metal foils (Cu(111), Ni(111)) were obtained via vertically suspended chemical vapor deposition (CVD) annealing of polycrystalline metal foils. This discovery offers a potential strategy for manipulating and producing large-scale metal foils that may be used for industrial-scale applications.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"11 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152129","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

Excitation-Wavelength-Dependent Dual Emission in Au42 Quantum Rods Au42量子棒中激发-波长相关的双发射

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-12 DOI: 10.1021/acs.nanolett.6c04058

Guiying He,Lianshun Luo,Mircea Cotlet,Guoxiang Hu,Gangli Wang,Rongchao Jin

引用次数: 0

From Micro to Nano: Boosting γ-MnO2 Cathode Performance through Particle Size Engineering 从微观到纳米：通过粒度工程提高γ-MnO2阴极性能

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-12 DOI: 10.1021/acs.nanolett.6c04092

Ella Davidi,Isaac Loke,Samuel Eisenberg,Xinzhe Xue,Megan C. Freyman,Asya Orhan,Erika P. Ramos,Jianchao Ye,Seongkoo Cho,Makena White,Christopher Nelson,Hanyu Wang,Christine A. Orme,Bruce Dunn,Marcus A. Worsley,Yat Li

{"title":"From Micro to Nano: Boosting γ-MnO2 Cathode Performance through Particle Size Engineering","authors":"Ella Davidi,Isaac Loke,Samuel Eisenberg,Xinzhe Xue,Megan C. Freyman,Asya Orhan,Erika P. Ramos,Jianchao Ye,Seongkoo Cho,Makena White,Christopher Nelson,Hanyu Wang,Christine A. Orme,Bruce Dunn,Marcus A. Worsley,Yat Li","doi":"10.1021/acs.nanolett.6c04092","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c04092","url":null,"abstract":"Fast-charging lithium-ion batteries require cathodes that sustain rapid Li+ transport while maintaining structural and interfacial stability. Here, we investigate particle-size effects in γ-MnO2 by comparing micron-sized (4.4 ± 0.8 μm) and nanosized (62 ± 21 nm) particles under identical conditions. Nanosized γ-MnO2 delivers 160.1 mAh g–1 at C/10 and retains ∼66% capacity at 5C while exhibiting lower charge-transfer and diffusion-related impedance. Cyclic voltammetry and Dunn’s analysis reveal a 68.9% capacitive contribution at 2 mV s–1, indicating a shift toward faster surface-controlled charge storage enabled by increased surface area and shorter Li+ diffusion pathways. GITT measurements show deeper lithiation (x ≈ 0.65 vs 0.48 in LixMnO2) and a more homogeneous solid-solution-like intercalation regime in nanosized particles, avoiding bulk phase-transition kinetic bottlenecks. The nanosized cathode retains 70% capacity with ∼99.5% Coulombic efficiency after 400 cycles at 3C, demonstrating particle-size engineering as an effective strategy for high-rate, long-life advanced battery energy storage.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"13 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152128","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

Polyaniline-Modified MXene/Carbon Nanotube Scaffold Enabling High-Rate and Long-Cycle Zinc–Iodine Batteries 聚苯胺修饰MXene/碳纳米管支架制备高倍率长循环锌碘电池

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-12 DOI: 10.1021/acs.nanolett.6c04159

Xiaoqian Gong,Yixing Wang,Mengya Ge,Qinghong Wang

引用次数: 0

Interface-Induced Crystallographic Orientation of Zinc Deposition Enabled by a Zwitterionic Dynamic Buffering Interface for Ultralong-Life Aqueous Zinc Batteries 超长寿命锌水电池中两性离子动态缓冲界面诱导锌沉积的晶体取向

IF 10.8 1区材料科学

Nano Letters Pub Date : 2026-10-12 DOI: 10.1021/acs.nanolett.6c03526

Xin Wei,Qing-Yuan Zhao,Ji-Zun Zhang,Hai Xu,Zi-Yan Liu,Naoyuki Shibayama,Yu-Ting Xu,Xiao-Feng Wang

{"title":"Interface-Induced Crystallographic Orientation of Zinc Deposition Enabled by a Zwitterionic Dynamic Buffering Interface for Ultralong-Life Aqueous Zinc Batteries","authors":"Xin Wei,Qing-Yuan Zhao,Ji-Zun Zhang,Hai Xu,Zi-Yan Liu,Naoyuki Shibayama,Yu-Ting Xu,Xiao-Feng Wang","doi":"10.1021/acs.nanolett.6c03526","DOIUrl":"https://doi.org/10.1021/acs.nanolett.6c03526","url":null,"abstract":"The development of aqueous zinc batteries is critically constrained by the electrode–electrolyte interfacial instability at the Zn anode. Herein, a zwitterionic dynamic buffering interface (ZDBI) is constructed by using trace glufosinate ammonium (GA). The dissociated GA– anchors onto the Zn(101) surface via its phosphinate and carboxylate groups with its protonated amino group (−NH3+) extending into the electrolyte to dynamically respond to interfacial electric fields. Meanwhile, free NH4+ cations can form an electrostatic shielding layer under an electric field. This synergistic chemisorbed-mobile-ion buffering network thickens the electric double layer, inhibits water-splitting parasitic reactions, and induces (101)-oriented deposition. Consequently, Zn||Zn symmetric cells sustain stable cycling for over 7800 h with a cumulative capacity of 3.9 Ah cm–2, while Zn||Cu half-cells achieve an average Coulombic efficiency of 99.3%, and Zn||V2O5 full cells retain 88% capacity after 1000 cycles at 5 A g–1. This work offers an efficient strategy for addressing electrode–electrolyte interfacial issues.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"12 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149152127","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