High sensitivity and homogeneity of surface enhanced Raman scattering on three-dimensional array–film hybrid platform

We design and fabricate a substrate based on a three-dimensional array–film hybrid structure used for surface enhanced Raman scattering (SERS). This substrate exhibits improvements both in sensitivity and homogeneity for the Raman signals. As a result, the substrate increases the Raman signal of Rho...

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Veröffentlicht in:Applied physics letters 2017-02, Vol.110 (8)
Hauptverfasser: Liu, Xing, Yu, Liju, Yang, Shumin, Yu, Huaina, Zhao, Jun, Wang, Liansheng, Wu, Yanqing, Tai, Renzhong
Format: Artikel
Sprache:eng
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Zusammenfassung:We design and fabricate a substrate based on a three-dimensional array–film hybrid structure used for surface enhanced Raman scattering (SERS). This substrate exhibits improvements both in sensitivity and homogeneity for the Raman signals. As a result, the substrate increases the Raman signal of Rhodamine 6G by 12.3 times under the same measurement conditions, compared with conventional gold array sitting directly on a silica wafer. The sensitivity of SERS can be easily tuned by changing the thickness of SiO2 separation. Meanwhile, the relative standard deviations are achieved to be less than 10%. This array–film hybrid structure provides a promising approach for future SERS applications.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4977424