Surface-enhanced Raman scattering by composite structure of gold nanocube-PMMA-gold film

doi:10.1364/OME.9.001872

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	Surface-enhanced Raman scattering by composite structure of gold nanocube-PMMA-gold film
	Wang, Xiangxian 1; Bai, Xuelin 1; Pang, Zhiyuan 1; Zhu, Jiankai 1; Wu, Yuan 1; Yang, Hua 1; Qi, Yunping 2; Wen, Xiaolei 3
刊名	OPTICAL MATERIALS EXPRESS
	2019-04
卷号	9 期号:4 页码:1872-1881
关键词	Esters Gold Laser excitation Metallic films Nanocomposite films Raman scattering Raman spectroscopy Shims Structure (composition) Substrates Surface plasmons Excitation sources Finite element method simulation Poly(methyl methacrylate) (PMMA) Raman enhancement Rhodamine 6G SERS spectrum Spacer layer thickness Surface enhanced Raman Scattering (SERS)
ISSN号	2159-3930
DOI	10.1364/OME.9.001872
英文摘要	In this study, we experimentally prepared composite structures of 170 nm gold nanocube, poly(methyl methacrylate) (PMMA) spacer layers with different thicknesses, and 50 nm gold film as substrates for surface plasmons excitation and surface-enhanced Raman scattering (SERS). The SERS spectra of gold nanocube and the composite structure were studied by using a 633 nm laser as an excitation source and rhodamine 6G (R6G) as the Raman probe molecule with 5.625 mu g/mL gold nanocube aqueous solution. It was found that the composite structures produced much stronger SERS signals than that with the single gold nanocube structure. The relationship between the intensities of SERS Raman peaks and the PMMA spacer layer thicknessess of the composite structures was found to have the same trend as that between the Raman enhancement factor and PMMA spacer layer thickness obtained by the finite element method simulation. Furthermore, a R6G concentration as low as 10(-12) M could be detected by the composite structure. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
资助项目	National Natural Science Foundation of China (NSFC)[61505074] ; National Natural Science Foundation of China (NSFC)[61865008]
WOS研究方向	Materials Science ; Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000462885100029
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32020]
专题	理学院
通讯作者	Wang, Xiangxian
作者单位	1.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China 2.Northwest Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Gansu, Peoples R China 3.Univ Sci & Technol China, Ctr Micro & Nanoscale Res & Fabricat, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiangxian,Bai, Xuelin,Pang, Zhiyuan,et al. Surface-enhanced Raman scattering by composite structure of gold nanocube-PMMA-gold film[J]. OPTICAL MATERIALS EXPRESS,2019,9(4):1872-1881.
APA	Wang, Xiangxian.,Bai, Xuelin.,Pang, Zhiyuan.,Zhu, Jiankai.,Wu, Yuan.,...&Wen, Xiaolei.(2019).Surface-enhanced Raman scattering by composite structure of gold nanocube-PMMA-gold film.OPTICAL MATERIALS EXPRESS,9(4),1872-1881.
MLA	Wang, Xiangxian,et al."Surface-enhanced Raman scattering by composite structure of gold nanocube-PMMA-gold film".OPTICAL MATERIALS EXPRESS 9.4(2019):1872-1881.