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题名:
Studying Properties of Composite Nano-PAA-Au Array for the Optimal SERS Sensitivity
作者: Sui, Chaofan1; Zhao, Wenxuan1; Wang, Kaige1; Ba, Hanqing1; Wang, Shuang1; Bai, Xiaohong2; Bai, Jintao1
作者部门: 精密物理量测量实验室
刊名: PLASMONICS
出版日期: 2018-04-01
卷号: 13, 期号:2, 页码:631-638
关键词: Surface-enhanced Raman scattering ; Localized surface plasmon resonance ; Nano-PAA-Au array ; Electromagnetic enhancement
学科分类: Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
DOI: 10.1007/s11468-017-0554-9
通讯作者: Wang, KG (reprint author), Northwest Univ, Inst Photon & Photon Technol, Natl Key Lab Base Photoelect Technol & Funct Mat, Xian 710069, Shaanxi, Peoples R China.
文章类型: Article
英文摘要: The composite structure of nano-porous anodic alumina (nano-PAA) coated with noble metal layer has been demonstrated to be one kind of high-sensitive surface-enhanced Raman scattering (SERS)-active substrate. However, the experimental investigations on influences of parameters were restricted by correlation between variables. And in relevant simulation studies, nano-tips at intersections of unit edges on the surface and the metal attaching to inside walls of nano-holes which are crucial for the enhancement of electric field were commonly idealized. To obtain the optimal structure of nano-PAA-Au array for SERS applications, numerical evaluations of the electric field distributions and intensities at hotspots were carried out on a proposed precise model. The influence of structure and excitation parameters which determined the electromagnetic enhancement have been systematically investigated. The numerical data shows that the intensity and distribution of surface electric field is evidently affected by both the characteristics of nano-tips and the metal attaching to the inside wall of holes. In addition, the designed substrate was synthesized accordingly and demonstrated to be higher sensitive with an achieved enhancement factor of 1.04 x 10(7). The study would be helpful in designing high-sensitive SERS-active substrates.
WOS标题词: Science & Technology ; Physical Sciences ; Technology
类目[WOS]: Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]: ENHANCED RAMAN-SCATTERING ; SUBSTRATE ; SILVER ; NANOSTRUCTURES ; SPECTROSCOPY ; FABRICATION ; MOLECULES ; RESONANCE ; TEMPLATE
收录类别: SCI
项目资助者: National Natural Science Foundation of China(61378083) ; International Cooperation Foundation of the National Science and Technology Major Project of the Ministry of Science and Technology of China(2011DFA12220) ; Major Research Plan of the National Natural Science Foundation of China(91123030) ; Key Laboratory Project of Shaanxi Education Department(14JS106 ; Natural Science Foundation of Shaanxi Province(2010JS113) ; Major Fundamental Research Project of Natural Science Fundamental Research Program of Shaanxi Province(2016ZDJC-15) ; 16JS102)
语种: 英语
WOS记录号: WOS:000428074500034
ISSN号: 1557-1955
产权排序: 2
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.opt.ac.cn/handle/181661/30022
Appears in Collections:精密物理量测量实验室_期刊论文

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作者单位: 1.Northwest Univ, Inst Photon & Photon Technol, Natl Key Lab Base Photoelect Technol & Funct Mat, Xian 710069, Shaanxi, Peoples R China
2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Ultrafast Photoelect Diagnost Technol, Xian 710119, Shaanxi, Peoples R China

Recommended Citation:
Sui, Chaofan,Zhao, Wenxuan,Wang, Kaige,et al. Studying Properties of Composite Nano-PAA-Au Array for the Optimal SERS Sensitivity[J]. PLASMONICS,2018-04-01,13(2):631-638.
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