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dc.contributor.author심재현-
dc.date.accessioned2019-10-28T05:42:02Z-
dc.date.available2019-10-28T05:42:02Z-
dc.date.issued2019-05-
dc.identifier.citationJOURNAL OF RAMAN SPECTROSCOPY, v. 50, issue. 10, Page. 1485-1491en_US
dc.identifier.issn0377-0486-
dc.identifier.issn1097-4555-
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/full/10.1002/jrs.5654-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/111604-
dc.description.abstractSurface-enhanced Raman spectroscopy (SERS) signals in liquid state are significantly enhanced by utilizing cooperative interaction between metal surface plasmon and dielectric resonance. Raman signals from the diluted solutions are very weak even if they are amplified by SERS using Au nanorods. When SiO2 nanoparticles are added together with Au nanorods, however, Raman intensity increased by three order comparing with that of system containing only Au nanorods. Finite-difference time-domain simulations show that SiO2 nanoparticles exhibit dipolar electric resonance, which is strongly enhanced by interacting with the surface plasmon of Au nanorods. The size and concentration of SiO2 nanoparticles are optimized to 354 nm in diameter and 4.5 vol%. Under the optimized condition, SERS intensity decrease with concentration of analyte (rhodamine 6G or crystal violet) is much slower for the system containing both Au nanorods and SiO2 nanoparticles than that of the system containing only Au nanorods. The detection limit is 10−10 M for both aqueous rhodamine 6G and crystal violet solutions. © 2019 John Wiley & Sons, Ltd.en_US
dc.description.sponsorshipThis work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2017R1A2B2007618, 2018K1A3A1A32053991 and 2012R1A6A1029029) and Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry and Fisheries (IPET) through Animal Disease Management Technology Development Program funded by Ministry of Agriculture, Food and Rural Affairs (MAFRA; 317028‐02 and 318044‐02).en_US
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.subjectdielectric nanoparticlesen_US
dc.subjectliquid-state SERSen_US
dc.subjectmetal-dielectric couplingen_US
dc.subjectSERS enhancementen_US
dc.subjectvolume exclusionen_US
dc.titleCooperative surface‐enhanced Raman spectroscopy enhancement in Au nanorod/SiO2 nanoparticle solutionsen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/jrs.5654-
dc.relation.page1-7-
dc.relation.journalJOURNAL OF RAMAN SPECTROSCOPY-
dc.contributor.googleauthorNam, Jihye-
dc.contributor.googleauthorDuy, Pham Khac-
dc.contributor.googleauthorSeo, Chunhee-
dc.contributor.googleauthorEom, Sangwon-
dc.contributor.googleauthorMinh, Duong Nguyen-
dc.contributor.googleauthorLee, Jisun-
dc.contributor.googleauthorSim, Jae Hyun-
dc.contributor.googleauthorChung, Hoeil-
dc.contributor.googleauthorKang, Youngjong-
dc.relation.code2019001313-
dc.sector.campusS-
dc.sector.daehakRESEARCH INSTITUTE[S]-
dc.sector.departmentINSTITUTE OF NANO SCIENCE AND TECHNOLOGY-
dc.identifier.pidjhsim-
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RESEARCH INSTITUTE[S](부설연구소) > ETC
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