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Graphene/Ag nanoholes composites for quantitative surface-enhanced Raman scattering
Jie, Zhang1; Zenghe, Yin1; Tiancheng, Gong2; Yunfei, Luo2,3; Dapeng, Wei4; Yong, Zhu1
Source PublicationOPTICS EXPRESS
Indexed BySCI ; Ei
WOS IDWOS:000442136200091
EI Accession Number20183405731102
AbstractQuantitative analysis is of importance for surface-enhanced Raman scattering (SERS). However, due to fluctuations in the enhancing performance of the substrates, it is difficult to obtain reliable results. In this paper, a reliable quantitative method is introduced to overcome this problem with graphene on the top of Ag nanoholes structure as SERS substrates by an internal standard method. To achieve the internal standard method. Ag nanoholes are firstly prepared by surface plasmon (SP) lithography technology. Then a monolayer graphene is transferred onto the surface of the Ag nanoholes structure. 2D Raman peak of graphene is used as an internal standard to normalize the intensity of analyte molecules. The random representative and averaged Raman intensity of different concentration of rhodamine 6G (R6G) is collected with graphene/Ag nanoholes (GE/AgNHs) structures as SERS substrates, and the corresponding normalized intensity is also calculated and discussed in details. The relative standard deviation (RSD) is reduced from 25% (Raman intensity) to 12% (normalized intensity). The quantification of R6G is demonstrated down to the detection limit of 10(-15) M. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
KeywordGraphene Lithography Raman scattering Silver Substrates Surface plasmons
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Document Type期刊论文
Affiliation1.Key Laboratory of Optoelectronic Technology and System, Education Ministry of China, Chongqing University, 400044, China;
2.State Key Lab of Optical Technologies on Nano-fabrication and Micro-engineering, Institute of Optics and Electronics, Chinese Academy of Science, Chengdu; 610209, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China;
4.Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China
Recommended Citation
GB/T 7714
Jie, Zhang,Zenghe, Yin,Tiancheng, Gong,et al. Graphene/Ag nanoholes composites for quantitative surface-enhanced Raman scattering[J]. OPTICS EXPRESS,2018,26(17):22432-22439.
APA Jie, Zhang,Zenghe, Yin,Tiancheng, Gong,Yunfei, Luo,Dapeng, Wei,&Yong, Zhu.(2018).Graphene/Ag nanoholes composites for quantitative surface-enhanced Raman scattering.OPTICS EXPRESS,26(17),22432-22439.
MLA Jie, Zhang,et al."Graphene/Ag nanoholes composites for quantitative surface-enhanced Raman scattering".OPTICS EXPRESS 26.17(2018):22432-22439.
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