Abstract
As shown in Chap. 4, surface-enhanced Raman scattering (SERS) substrates with scale structure have unique advantages in terms of sensitivity, repeatability, and mass-producibility. However, the mechanism by which such performance is achieved should be clarified. This may help select appropriate biostructures from countless biological candidates for SERS application. In this chapter, we first discuss the SERS performance of differently textured metal scales, whose microstructures were regulated by changing the metal deposition time (DT). We then compare the contributions from different structural features and target the key contributor to SERS performance. Such a structure is then analyzed using a finite element method (FEM). The resulting mechanism will be checked by studying the SERS performance of Cu scales with different structures. All these results will illustrate a mechanism by which metal butterfly scale replicas can effectively enhance the Raman signals of analytes.
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© 2015 Jiajun Gu, Di Zhang, and Yongwen Tan
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Gu, J., Zhang, D., Tan, Y. (2015). Surface-Enhanced Raman Scattering (SERS) Mechanisms of Metal Scale Replicas. In: Metallic Butterfly Wing Scales. SpringerBriefs in Materials. Springer, Cham. https://doi.org/10.1007/978-3-319-12535-0_5
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DOI: https://doi.org/10.1007/978-3-319-12535-0_5
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