Nano Letters最新文献_第2页

Exploiting Intersubband Plasmons in Vertically Aligned Carbon Nanotubes for Near-Infrared Electrochromic Windows. 利用垂直排列碳纳米管的子带间等离子体在近红外电致变色窗口中的应用。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-07-24 DOI: 10.1021/acs.nanolett.5c00059

Alex Abelson,Philip M Jean-Remy,Tom Nakotte,Paul E Munger,Steven F Buchsbaum,Sei Jin Park,Anna M Hiszpanski

引用次数: 0

Ferroelectric Charged Domain-Wall Synapse for Neuromorphic Computing. 用于神经形态计算的铁电畴壁突触。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-07-24 DOI: 10.1021/acs.nanolett.5c02081

Chen Liang,Ye Wang,Yiming Liu,Xiaoming Shi,Ji Ma,Wael Ben Taazayet,Qinghua Liang,Huayu Yang,Yuanyuan Fan,Jiafang Li,Congli He,Ying Fu,Houbing Huang,Jing Wang,Ce-Wen Nan

{"title":"Ferroelectric Charged Domain-Wall Synapse for Neuromorphic Computing.","authors":"Chen Liang,Ye Wang,Yiming Liu,Xiaoming Shi,Ji Ma,Wael Ben Taazayet,Qinghua Liang,Huayu Yang,Yuanyuan Fan,Jiafang Li,Congli He,Ying Fu,Houbing Huang,Jing Wang,Ce-Wen Nan","doi":"10.1021/acs.nanolett.5c02081","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c02081","url":null,"abstract":"Inspired by brain neural networks, integrated memory-computing devices are critical to meet the demands of big data and artificial intelligence. This work explores the quasi-continuous modulation of ferroelectric charged domain walls' conductance, which is confined in a topological quad-domain, allowing the charged domain walls to serve as neural synapses. The device mimics synaptic plasticity (long-term potentiation and depression) and shows paired impulse facilitation. In a designed ferroelectric domain-wall neural network, we demonstrate multiplicative, accumulation-additive operations between the input image and the stored response matrix, capable of image processing functions, including triclassification with 100% accuracy. In the neural network simulation, the MINST database and the Cifar-10 database achieve 98.7% and 95.1% recognition rates. The sub-nanosecond polarization switching and the ultrathin (3-5 nm) charged domain walls position them as a promising platform for advancing ultrafast and scalable synaptic devices for low-power (potentially reduced to 0.2 aJ with sub-nanosecond pulse durations) neuromorphic computing systems.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"115 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144701271","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

3D Multiphoton Nanolithography with Bioresorbable Amino Acid-Based Resins. 生物可吸收氨基酸基树脂的三维多光子纳米光刻技术。

IF 9.6 1区材料科学

Nano Letters Pub Date : 2025-07-24 DOI: 10.1021/acs.nanolett.5c02804

Christoph Naderer, Dmitry Sivun, Stephan Haudum, Ian Teasdale, Jaroslaw Jacak

引用次数: 0

Single-Molecule Conductance through Hybrid Radially and Linearly π-Conjugated Macromolecules Reveals an Unusual Intramolecular π-Interaction. 通过杂化径向和线性π共轭大分子的单分子电导揭示了一种不寻常的分子内π相互作用。

IF 10.8 1区材料科学

Nano Letters Pub Date : 2025-07-24 DOI: 10.1021/acs.nanolett.5c03693

Wanzhuo Shi,Mengjiao Wang,Latha Venkataraman,John D Tovar

{"title":"Single-Molecule Conductance through Hybrid Radially and Linearly π-Conjugated Macromolecules Reveals an Unusual Intramolecular π-Interaction.","authors":"Wanzhuo Shi,Mengjiao Wang,Latha Venkataraman,John D Tovar","doi":"10.1021/acs.nanolett.5c03693","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03693","url":null,"abstract":"We describe the design, synthesis, and single-molecule junction conductance of π-electron molecules bearing both radial and linear π-conjugation pathways, whereby cycloparaphenylene (CPP) radial cores are π-extended linearly with aryl alkyne substituents as models for previously reported CPP-arylene ethynylene conjugated polymers. Although radially and linearly conjugated molecules have been studied previously in isolation as junction-bridging molecular electronic units, this is the first study to examine molecules where both topologies are operative. Our results reveal that the presence of radial CPP components within the junction-spanning pathway leads to a reduction in the conductance of the backbone compared to model linear phenyl substituents. Through tight-binding and DFT-based calculations, we attribute this conductance change to intramolecular van der Waals (vdW) interactions between the CPP ring and the junction-spanning arylene-ethynylene molecular backbone. These interactions induce changes in the dihedral angles of the backbone, leading to a reduced overlap of π orbitals within the molecular junction.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"54 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144701177","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

IF 9.6 1区材料科学

Nano Letters Pub Date : 2025-07-23

Yinglin Wang, Runlong Rao, Zejing Wang, Chao Xu, Yangyang Shi, Shuai Wan* and Zhongyang Li*,