Edge-Localized Plasmonic Resonances in WS2 Nanostructures from Electron Energy-Loss Spectroscopy.

IF 11.1 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Small Science Pub Date : 2025-02-13 eCollection Date: 2025-05-01 DOI:10.1002/smsc.202400558
Abel Brokkelkamp, Sabrya E van Heijst, Sonia Conesa-Boj
{"title":"Edge-Localized Plasmonic Resonances in WS<sub>2</sub> Nanostructures from Electron Energy-Loss Spectroscopy.","authors":"Abel Brokkelkamp, Sabrya E van Heijst, Sonia Conesa-Boj","doi":"10.1002/smsc.202400558","DOIUrl":null,"url":null,"abstract":"<p><p>Localized plasmon resonances in 2D transition metal dichalcogenides (TMDs) offer a powerful means to enhance light-matter interactions at the nanoscale, making them ideal candidates for advanced optoelectronic applications. However, disentangling the complex plasmonic interactions in these materials, especially in the low-energy regime, presents significant challenges. Herein, localized plasmon resonances in chemical vapor deposition-grown tungsten disulfide (WS<sub>2</sub>) nanotriangles, using a combination of advanced spectral analysis and simulation techniques, is investigated. By combining non-negative matrix factorization with electron energy loss spectroscopy, distinct plasmonic modes to provide a comprehensive analysis of the plasmonic landscape of individual and stacked WS<sub>2</sub> nanotriangles are identified and characterized. Furthermore, the dispersion relation of these localized plasmon resonances is quantified and their evolution across different WS<sub>2</sub> triangular geometries is evaluated. Experimental characterization of plasmonic resonances in WS<sub>2</sub> through dedicated numerical simulations based on the pygdm package is validated. The findings highlight the critical role of localized plasmon resonances in modulating the electronic and optical properties of WS<sub>2</sub>, offering new insights into the design and optimization of TMD-based devices for optoelectronic and nanophotonic applications.</p>","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 5","pages":"2400558"},"PeriodicalIF":11.1000,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12087782/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Small Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/smsc.202400558","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/5/1 0:00:00","PubModel":"eCollection","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Localized plasmon resonances in 2D transition metal dichalcogenides (TMDs) offer a powerful means to enhance light-matter interactions at the nanoscale, making them ideal candidates for advanced optoelectronic applications. However, disentangling the complex plasmonic interactions in these materials, especially in the low-energy regime, presents significant challenges. Herein, localized plasmon resonances in chemical vapor deposition-grown tungsten disulfide (WS2) nanotriangles, using a combination of advanced spectral analysis and simulation techniques, is investigated. By combining non-negative matrix factorization with electron energy loss spectroscopy, distinct plasmonic modes to provide a comprehensive analysis of the plasmonic landscape of individual and stacked WS2 nanotriangles are identified and characterized. Furthermore, the dispersion relation of these localized plasmon resonances is quantified and their evolution across different WS2 triangular geometries is evaluated. Experimental characterization of plasmonic resonances in WS2 through dedicated numerical simulations based on the pygdm package is validated. The findings highlight the critical role of localized plasmon resonances in modulating the electronic and optical properties of WS2, offering new insights into the design and optimization of TMD-based devices for optoelectronic and nanophotonic applications.

基于电子能量损失谱的WS2纳米结构边缘定域等离子体共振。
二维过渡金属二硫族化合物(TMDs)中的局部等离子体共振提供了一种在纳米尺度上增强光-物质相互作用的有力手段,使其成为先进光电应用的理想候选者。然而,解开这些材料中复杂的等离子体相互作用,特别是在低能状态下,提出了重大的挑战。本文采用先进的光谱分析和模拟技术,研究了化学气相沉积生长的二硫化钨(WS2)纳米三角形中的局部等离子体共振。通过将非负矩阵分解与电子能量损失光谱相结合,识别和表征了不同的等离子体模式,从而对单个和堆叠WS2纳米三角形的等离子体景观进行了全面的分析。此外,量化了这些局域等离子体共振的色散关系,并评估了它们在不同WS2三角形几何上的演变。通过基于pygdm包的专用数值模拟验证了WS2中等离子体共振的实验表征。这些发现强调了局部等离子体共振在调制WS2的电子和光学特性中的关键作用,为基于tmd的光电和纳米光子应用器件的设计和优化提供了新的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
14.00
自引率
2.40%
发文量
0
期刊介绍: Small Science is a premium multidisciplinary open access journal dedicated to publishing impactful research from all areas of nanoscience and nanotechnology. It features interdisciplinary original research and focused review articles on relevant topics. The journal covers design, characterization, mechanism, technology, and application of micro-/nanoscale structures and systems in various fields including physics, chemistry, materials science, engineering, environmental science, life science, biology, and medicine. It welcomes innovative interdisciplinary research and its readership includes professionals from academia and industry in fields such as chemistry, physics, materials science, biology, engineering, and environmental and analytical science. Small Science is indexed and abstracted in CAS, DOAJ, Clarivate Analytics, ProQuest Central, Publicly Available Content Database, Science Database, SCOPUS, and Web of Science.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信