Beilstein J. Nanotechnol.2019,10, 2483–2496, doi:10.3762/bjnano.10.239
sensitive, hierarchical SERS substrate.
Keywords: Ag nanoparticles; hierarchicalsubstrates; malachite green molecules; nanoindentation; nanostructures; R6G; SERS; Introduction
Surface-enhanced Raman scattering (SERS) has triggered significant research interest due to its suitability as an analytical tool
], nanostars [17][18], nanoantennas [19], and nanospheres [20]; these have been successfully machined by existing lithography-based technologies. Furthermore, hierarchicalsubstrates have also been fabricated by a combination of lithography [21][22][23][24][25] and self-assembly. Matricardi et al. [21] used
R6G molecules are used as adsorption markers. Finally, the Raman intensities of malachite green molecules with low concentration are detected on the optimized hierarchical SERS substrates. This work combines force modulation indentation with chemical reaction methods. The hierarchicalsubstrates
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Figure 1:
SEM images of the arrayed triangular cavities with different feeds in AgNO3 solution before and aft...