Institutional Repository of Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Anhui, Peoples R China
| An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles | |
He, Lifang1; Ai, Chengying1; Wang, Wenbao1; Gao, Ning1; Yao, Xiaolin1; Tian, Chao1; Zhang, Kui2
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| 2016-04-01 | |
| 发表期刊 | JOURNAL OF MATERIALS SCIENCE
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| 摘要 | Silicon nanowire arrays (SiNWAs) decorated with metallic nanoparticle heterostructures feature promising applications in surface-enhanced Raman scattering (SERS). However, the densely arranged SiNWAs are usually inconvenient for the following decoration of metallic nanoparticles, and only the top area of silicon nanowires (SiNWs) contributes to the SERS detection. To improve the utilization of the heterostructure, herein, oblique SiNWAs were grown separately, and Ag nanoparticles (AgNPs) were uniformly deposited by magnetron sputtering to get the three-dimensional (3D) SiNWAs decorated with AgNPs (AgNPs-SiNWAs) SERS substrate. The large open surfaces of oblique SiNWs would create more surface area available for the formation of hotspots and improve the adsorption and excitation of analyte molecules on the wire. The optimized AgNPs-SiNWAs substrate exhibits high sensitivity in detecting chemical molecule Rhodamine 6G, and the detection limit can reach 1 x 10(-10) M. More importantly, the substrate also can be used as an effective DNA sensor for label-free DNA detection. |
| 文章类型 | Article |
| WOS标题词 | Science & Technology ; Technology |
| DOI | 10.1007/s10853-015-9704-7 |
| 关键词[WOS] | SERS SUBSTRATE ; HOT-SPOTS ; NANOROD ARRAYS ; LARGE-AREA ; SILVER ; SPECTROSCOPY ; COMPOSITE ; MOLECULES ; GOLD |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) |
| WOS研究方向 | Materials Science |
| WOS类目 | Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000369000700019 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/31589 |
| 专题 | 中科院合肥智能机械研究所 |
| 作者单位 | 1.Anhui Agr Univ, Dept Appl Chem, Hefei 230036, Peoples R China 2.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Lifang,Ai, Chengying,Wang, Wenbao,et al. An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles[J]. JOURNAL OF MATERIALS SCIENCE,2016,51(8):3854-3860. |
| APA | He, Lifang.,Ai, Chengying.,Wang, Wenbao.,Gao, Ning.,Yao, Xiaolin.,...&Zhang, Kui.(2016).An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles.JOURNAL OF MATERIALS SCIENCE,51(8),3854-3860. |
| MLA | He, Lifang,et al."An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles".JOURNAL OF MATERIALS SCIENCE 51.8(2016):3854-3860. |
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| An effective three-d（1279KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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