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A capillary force-induced Au nanoparticle-Ag nanowire single hot spot platform for SERS analysis

文献类型：期刊论文

作者Li, Pan1,2; Yan, Xiunan1,2; Zhou, Fei3; Tang, Xianghu1; Yang, Liangbao1,2; Liu, Jinhuai1,2
刊名JOURNAL OF MATERIALS CHEMISTRY C
出版日期2017-04-07
卷号5期号:13页码:3229-3237
DOI10.1039/c7tc00150a
文献子类Article
英文摘要Designing plasmonic hot spots within an active platform that has well-defined and highly reproducible features is one of the most critical issues in obtaining ultrasensitive detection and credible signals for surface-enhanced Raman spectroscopy (SERS). Hot spots between two or more nanostructures can amplify Raman signals for single-molecule-level detection. Here, we report a SERS-active platform by using spontaneous capillary imbibition to assemble a single Au nanoparticle (NP) onto the surface of a single Ag nanowire (NW). Optical excitation of this coupled nanostructure provides a SERS hot spot at the gap between the single NP and NW. This platform can be easily fabricated, and the position of the single hot spot can be conveniently located during SERS measurements. Moreover, the single Au NP coupled to the Ag NW acts as an optical antenna for localizing and enhancing the electromagnetic field (E-field). Most importantly, the single hot spot platform can provide a "nano-channel'' for trapping molecules because of the presence of capillary imbibition. We show that high quality SERS spectra of various molecules with different natures can be generated on a single hot spot structure with reliable reproducibility and excellent sensitivity. Our approach not only overcomes the difficulty of bringing two nanostructures together to form an efficient junction with simple fabrication and maximum uniformity, but also provides a SERS-active platform with a narrow enhancement factor (EF) distribution.
WOS关键词SURFACE-ENHANCED RAMAN ; SPECTROSCOPY ; SCATTERING ; MOLECULE ; NANOCHANNELS ; LIGHT ; DNA ; NANOSTRUCTURES ; SENSITIVITY ; SUBSTRATE
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000397964700004
资助机构National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; National Science Foundation of China(21571180 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; China Postdoctoral Science Foundation(2016T90590 ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Anhui Natural Science Foundation(1508085MB26) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; Open Project of State Key Laboratory of Physical Chemistry(201405) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 21505138) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950) ; 2015M571950)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31811]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Li, Pan,Yan, Xiunan,Zhou, Fei,et al. A capillary force-induced Au nanoparticle-Ag nanowire single hot spot platform for SERS analysis[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(13):3229-3237.
APA Li, Pan,Yan, Xiunan,Zhou, Fei,Tang, Xianghu,Yang, Liangbao,&Liu, Jinhuai.(2017).A capillary force-induced Au nanoparticle-Ag nanowire single hot spot platform for SERS analysis.JOURNAL OF MATERIALS CHEMISTRY C,5(13),3229-3237.
MLA Li, Pan,et al."A capillary force-induced Au nanoparticle-Ag nanowire single hot spot platform for SERS analysis".JOURNAL OF MATERIALS CHEMISTRY C 5.13(2017):3229-3237.

入库方式： OAI收割

来源：合肥物质科学研究院

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