Jeongwon Kim, Qiang Zhao, Inyoung Choi, Myeong Jin Oh, Sunwoo Kwon, Sungho Park
{"title":"尖端对尖端配置超晶格中等离子体八面体纳米颗粒三维超晶体中的系综热点","authors":"Jeongwon Kim, Qiang Zhao, Inyoung Choi, Myeong Jin Oh, Sunwoo Kwon, Sungho Park","doi":"10.1038/s41467-025-58029-5","DOIUrl":null,"url":null,"abstract":"<p>Nanoparticle assembly offers promising strategy for harnessing the physicochemical interparticle interactions. Despite its potential for boosting light-matter interaction, achieving nanoparticle assembly with tip-to-tip manner remains a significant challenge. Here we show a synthetic procedure for organizing gold octahedral nanoparticles into a distinct three-dimensional upright superstructure, where the pointed tips are oriented toward neighboring nanoparticles to promote enhanced near-field focusing at these apexes. This arrangement, referred to as the “coupling of the lightning rod effect”, facilitates production in the form of “superpowder”, which exhibits an extensive assembly order like a powder. Deviating from natural packing principles, this tip-to-tip alignment—the upright octahedral superlattice—optimizes near-field focusing on its vertices while maintaining consistently high porosity, allowing for deep penetration of adsorbates. This configuration is advantageous for enabling surface-enhanced Raman scattering of gaseous molecules with reduced background fluorescence signals, particularly under high-intensity laser excitation, a challenging feat with conventional surface-enhanced Raman scattering techniques.</p>","PeriodicalId":19066,"journal":{"name":"Nature Communications","volume":"27 1","pages":""},"PeriodicalIF":15.7000,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ensemble hot-spots in 3D supercrystals of plasmonic octahedral nanoparticles in tip-to-tip configured superlattices\",\"authors\":\"Jeongwon Kim, Qiang Zhao, Inyoung Choi, Myeong Jin Oh, Sunwoo Kwon, Sungho Park\",\"doi\":\"10.1038/s41467-025-58029-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Nanoparticle assembly offers promising strategy for harnessing the physicochemical interparticle interactions. Despite its potential for boosting light-matter interaction, achieving nanoparticle assembly with tip-to-tip manner remains a significant challenge. Here we show a synthetic procedure for organizing gold octahedral nanoparticles into a distinct three-dimensional upright superstructure, where the pointed tips are oriented toward neighboring nanoparticles to promote enhanced near-field focusing at these apexes. This arrangement, referred to as the “coupling of the lightning rod effect”, facilitates production in the form of “superpowder”, which exhibits an extensive assembly order like a powder. Deviating from natural packing principles, this tip-to-tip alignment—the upright octahedral superlattice—optimizes near-field focusing on its vertices while maintaining consistently high porosity, allowing for deep penetration of adsorbates. This configuration is advantageous for enabling surface-enhanced Raman scattering of gaseous molecules with reduced background fluorescence signals, particularly under high-intensity laser excitation, a challenging feat with conventional surface-enhanced Raman scattering techniques.</p>\",\"PeriodicalId\":19066,\"journal\":{\"name\":\"Nature Communications\",\"volume\":\"27 1\",\"pages\":\"\"},\"PeriodicalIF\":15.7000,\"publicationDate\":\"2025-03-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Communications\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1038/s41467-025-58029-5\",\"RegionNum\":1,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Communications","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1038/s41467-025-58029-5","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Ensemble hot-spots in 3D supercrystals of plasmonic octahedral nanoparticles in tip-to-tip configured superlattices
Nanoparticle assembly offers promising strategy for harnessing the physicochemical interparticle interactions. Despite its potential for boosting light-matter interaction, achieving nanoparticle assembly with tip-to-tip manner remains a significant challenge. Here we show a synthetic procedure for organizing gold octahedral nanoparticles into a distinct three-dimensional upright superstructure, where the pointed tips are oriented toward neighboring nanoparticles to promote enhanced near-field focusing at these apexes. This arrangement, referred to as the “coupling of the lightning rod effect”, facilitates production in the form of “superpowder”, which exhibits an extensive assembly order like a powder. Deviating from natural packing principles, this tip-to-tip alignment—the upright octahedral superlattice—optimizes near-field focusing on its vertices while maintaining consistently high porosity, allowing for deep penetration of adsorbates. This configuration is advantageous for enabling surface-enhanced Raman scattering of gaseous molecules with reduced background fluorescence signals, particularly under high-intensity laser excitation, a challenging feat with conventional surface-enhanced Raman scattering techniques.
期刊介绍:
Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.