Nano Letters最新文献_第6页

Low Power FA2PbI4/SiO2 Bilayer Memristors with Pt Nanoparticles Exhibiting Reconfigurable Synaptic and Neuron Properties for Compact Optoelectronic Neuromorphic Systems. 具有Pt纳米粒子的低功耗FA2PbI4/SiO2双层记忆电阻器具有可重构的突触和神经元特性，用于紧凑型光电神经形态系统。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-05 DOI: 10.1021/acs.nanolett.5c03475

Panagiotis Bousoulas,Spyros Orfanoudakis,Danai Spathi,Victoras Pagonis,Leonidas Tsetseris,Charalampos Tsioustas,Polychronis Tsipas,Athanassios G Kontos,Thomas Stergiopoulos,Dimitris Tsoukalas

{"title":"Low Power FA2PbI4/SiO2 Bilayer Memristors with Pt Nanoparticles Exhibiting Reconfigurable Synaptic and Neuron Properties for Compact Optoelectronic Neuromorphic Systems.","authors":"Panagiotis Bousoulas,Spyros Orfanoudakis,Danai Spathi,Victoras Pagonis,Leonidas Tsetseris,Charalampos Tsioustas,Polychronis Tsipas,Athanassios G Kontos,Thomas Stergiopoulos,Dimitris Tsoukalas","doi":"10.1021/acs.nanolett.5c03475","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03475","url":null,"abstract":"The development of artificial neural networks with biorealistic computing properties represents a frontier in the neuromorphic computing era. However, achieving compact and energy-efficient integration of silicon-based synapses and neurons remains challenging due to complexities in their electrical circuits. Herein, we fabricated a low power Ag/SiO2/FA2PbI4/Pt nanoparticles/ITO bilayer memristor with reconfigurable properties, exhibiting dual switching modes and neuromorphic functionalities. These effects were experimentally investigated through transient response and endurance measurements, while valuable insights were provided using a comprehensive numerical model. The SiO2/FA2PbI4 and FA2PbI4/Pt nanoparticle interfaces played a critical role in regulating ion migration, stabilizing filament dynamics and enhancing device reliability. A compact optoelectronic neuromorphic system was demonstrated by integrating synaptic and neuronal elements, enabling precise control of the firing activity. An ultralow power consumption (∼10 fJ/spike) was achieved, comparable to that of the human brain and state-of-the-art memristive technologies, thereby paving the way for energy-efficient optoelectronic computing platforms.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"37 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229155","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

Direct Writing of Nanostructured Metasurfaces by Hot-Electron-Driven Laser Sintering. 热电子驱动激光烧结直接写入纳米结构超表面。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-05 DOI: 10.1021/acs.nanolett.5c04174

Kai Chang,Kai Wei,Kaushik Kudtarkar,Cagatay Yelkarasi,Ali Erdemir,Shoufeng Lan,M Cynthia Hipwell,Heng Pan

{"title":"Direct Writing of Nanostructured Metasurfaces by Hot-Electron-Driven Laser Sintering.","authors":"Kai Chang,Kai Wei,Kaushik Kudtarkar,Cagatay Yelkarasi,Ali Erdemir,Shoufeng Lan,M Cynthia Hipwell,Heng Pan","doi":"10.1021/acs.nanolett.5c04174","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c04174","url":null,"abstract":"The precise fabrication of nanoscale metallic structures is pivotal to enabling progress in plasmonics, nanophotonics, and nanoelectronics. In this work, we introduce a high-resolution laser-sintering strategy for facile direct writing of plasmonic metasurfaces, avoiding the need for photolithography or ultrafast laser processing. This method exploits thermally assisted hot-electron-driven desorption and diffusion of aliphatic ligands to facilitate highly localized laser sintering of metal nanocrystals with subdiffraction-limited resolution down to ∼λ/5. A range of functional metasurface nanostructures are demonstrated. A finite-temperature quantum-mechanical model is proposed to predict the superlinear dependence of the ligand desorption rate on laser fluence. This hot-electron-driven sintering method proceeds without inducing the undesired degradation of the ligands, enabling sintering with properties comparable to those of bulk metals. The technique offers promise for the fabrication of polarization-sensitive, wavelength-tunable optical metasurfaces and presents a solution for rapid prototyping of nanodevices.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"115 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229154","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

Solution-Processed Temperature-Adaptive Radiative Paint as a Thermal Imaging Sensitizer. 溶液处理温度自适应辐射涂料作为热成像增敏剂。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-04 DOI: 10.1021/acs.nanolett.5c03631

Kai Xu,Jiachen Li,Finnegan G Reichertz,Ruihan Guo,Nawel S Khelfallah,Rui Zhang,Ali Javey,Rayne Zheng,Junqiao Wu

{"title":"Solution-Processed Temperature-Adaptive Radiative Paint as a Thermal Imaging Sensitizer.","authors":"Kai Xu,Jiachen Li,Finnegan G Reichertz,Ruihan Guo,Nawel S Khelfallah,Rui Zhang,Ali Javey,Rayne Zheng,Junqiao Wu","doi":"10.1021/acs.nanolett.5c03631","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03631","url":null,"abstract":"Thermography detects mid-infrared radiation from surfaces based on the Stefan-Boltzmann law, mapping surface temperatures and potentially revealing subsurface thermal activity. Recent developments offer an alternative strategy to traditional camera-based improvements: a thermal imaging sensitizer (TIS) coating whose emissivity increases sharply with local temperature, amplifying small thermal variations into high-contrast signals. Existing TIS structures are nanofabricated solid membranes and face significant challenges in fabrication complexity. Here, we present a solution-processed, liquid form of TIS, termed temperature-adaptive radiative paint (TARP), to address these limitations. TARP offers drastically reduced fabrication costs, scalability to large areas, applicability to curved surfaces, and an extended operating temperature range, while maintaining the function of temperature amplification. Application of TARP enhances small temperature contrast by more than 3 times, substantially improving ambient thermography and enabling broader applications such as detection of structural defects and hot spots in electronic components.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"7 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145215962","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

Heterogenous Integration of Boron-Doped p-Diamond with Monolayer n-MoS2 for PN Junctions Operating at Room Temperature. 室温下掺杂硼的p-金刚石与单层n-MoS2在PN结中的异相集成。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-03 DOI: 10.1021/acs.nanolett.5c04059

Akshay Wali,Roshan Padhan,Ralu Divan,Liliana Stan,Nihar Pradhan,Anirudha V Sumant

引用次数: 0

Subnanometer Interfacial Hydrodynamics: Spatially Resolved Viscosity and Surface Friction. 亚纳米界面流体力学：空间分辨粘度和表面摩擦。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-03 DOI: 10.1021/acs.nanolett.5c03950

Shane R Carlson,Roland R Netz

引用次数: 0

Confinement-Stabilized High-Valent Indium for pH-Universal Electrocatalytic CO2 Reduction ph -通用电催化CO2还原用稳定高价铟

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-03 DOI: 10.1021/acs.nanolett.5c03850

Dongxing Tan, Jing Wang, Hengrui Kang, Bari Wulan, Qingkun Kong, Song Chen, Yuanyuan Feng

{"title":"Confinement-Stabilized High-Valent Indium for pH-Universal Electrocatalytic CO2 Reduction","authors":"Dongxing Tan, Jing Wang, Hengrui Kang, Bari Wulan, Qingkun Kong, Song Chen, Yuanyuan Feng","doi":"10.1021/acs.nanolett.5c03850","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03850","url":null,"abstract":"The integration of electrocatalytic carbon dioxide reduction (CO2) with biomass valorization for the production of high-value chemicals presents a promising strategy for achieving carbon neutrality. Herein, we synthesized a nitrogen–carbon layer (NC layer) confined indium oxide (In2O3) to enhance the electrochemical CO2 reduction activity, concurrently coupling with the anodic formaldehyde oxidation reaction to achieve simultaneous electrosynthesis of formate in both cathode and anode compartments. Confinement within the NC layer significantly improves the formate selectivity of In2O3 while maintaining a high catalytic stability across a wide pH range. Density functional theory (DFT) calculations reveal that the work function difference between the NC layer and the In2O3 induces strong electronic interactions and stabilizes the Inδ+ species under catalytic conditions. This work presents an approach for efficient formate electrosynthesis through the simultaneous modulation of catalyst interfacial structure and coupling reactions.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"8 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216089","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

Tunable Photodetection Range of GaSb Nanowires for Infrared Spectral Encryption. 用于红外光谱加密的可调GaSb纳米线光探测范围。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-03 DOI: 10.1021/acs.nanolett.5c03836

Xiaoyue Wang,Zixu Sa,Zhenkai Yang,Kaixing Zhu,Yanxue Yin,Sukjoon Hong,Feng Chen,Zai-Xing Yang

引用次数: 0

Integrated Thermal-Wet Comfort Textile of Bioinspired Sweat Transportation and Triboelectric Evaporation for Personal Perspiration Management. 集成热湿舒适纺织品的生物灵感汗运输和摩擦电蒸发个人排汗管理。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-03 DOI: 10.1021/acs.nanolett.5c04151

Maorong Zheng,Jiayin Yang,Bin Wang,Yalin Dong,Liming Wang,Hongnan Zhang,Xiaohong Qin

引用次数: 0

C60 Fullerene as an On-Demand Single Photon Source at Room Temperature C60富勒烯在室温下作为按需单光子源

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-03 DOI: 10.1021/acs.nanolett.5c04007

Raul Lahoz Sanz, Lidia Lozano Martín, Adrià Brú i Cortés, Sergi Hernández Márquez, Martí Duocastella, Jose M. Gómez Cama, Bruno Juliá-Díaz

引用次数: 0

Tuning Triplet Exciton Pathways via Molecular Aggregation in a Family of Coordination Polymers. 通过配位聚合物家族中的分子聚集调节三重态激子途径。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-10-03 DOI: 10.1021/acs.nanolett.5c03866

Rui Feng,Zi-Ying Li,Shi-Shuang Huang,Mei-Hui Yu,Fengxia Wei,Jingwei Hou,Wei Li,Xian-He Bu

{"title":"Tuning Triplet Exciton Pathways via Molecular Aggregation in a Family of Coordination Polymers.","authors":"Rui Feng,Zi-Ying Li,Shi-Shuang Huang,Mei-Hui Yu,Fengxia Wei,Jingwei Hou,Wei Li,Xian-He Bu","doi":"10.1021/acs.nanolett.5c03866","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03866","url":null,"abstract":"Molecular aggregation is the key factor in determining the triplet exciton pathways of room-temperature phosphorescence (RTP) materials; however, controlling different aggregation forms and understanding their synergistic effects remain challenging. In this work, we report three coordination polymers (CPs) with cofacial translational stacking (H-aggregation), cofacial-staggered translational stacking (H-J aggregation) and cofacial translational-crossing stacking (H-X aggregation): [Zn(3,4-PyDC)(TPT)]·TPT (1; 3,4-PyDC = 3,4-pyridinedicarboxylate; TPT = 2,4,6-tri(4-pyridyl)-1,3,5-triazine), [Zn(IPA)(TPT)2]·H2O (2; IPA = isophthalate) and [Zn3(3,5-PyC)2(TPT)3(H2O)2] (3; 3,5-PyC = 3,5-pyrazoledicarboxylate). By changing the aggregation modes, these CPs exhibit tunable triplet exciton pathways, enabling distinct fluorescent, phosphorescent, and photochromic properties. Single-crystal X-ray diffraction, time-resolved emission spectroscopy and theoretical analysis demonstrate that enhanced charge migration in 2 with H-J aggregation promotes charge-separated photochromism, while differentiated orbital energies in 3 with H-X aggregation enables wavelength-responsive room temperature phosphorescence. These findings provide a route to hybrid CPs with designated triplet-exciton pathways and associated optical properties by manipulating molecular aggregation.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"114 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209175","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