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Further expanding versatility of surface-enhanced Raman spectroscopy: from non-traditional SERS-active to SERS-inactive substrates and single shell-isolated nanoparticle

Abstract

After surface-enhanced Raman spectroscopy (SERS) was initiated over four decades, its practical application seems to be far behind the fundamental research that has made the tremendous progress. SERS as a highly sensitive technique has not been widely adopted by material science and surface science communities as well as market of analytical instruments. In this Discussion we first classify the previous approaches along this direction over the past three decades and divide them into three strategies. Based on our recent theoretical and experimental approaches, we discuss with more details on the third strategy related to shell-isolated nanostructures. It can significantly expand the SERS study on nontraditional SERS-active (i.e., weakly SERS-active) materials (e.g., Pt, Ni, Fe, etc.) and even SERS-inactive materials (e.g., Si and Al2O3). We then focus on a single shell-isolated nanoparticle on how to controllably locate the strong electromagnetic field just at the probe surface of various materials. The use of side illumination at high incident angle or/and nanocube can further enhance the Raman signal by one to two orders in magnitude, which could be helpful for the quantitative study for surface science, heterogeneous catalysis and soft matter science.

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Publication details

The article was accepted on 04 May 2017 and first published on 09 May 2017


Article type: Paper
DOI: 10.1039/C7FD00144D
Citation: Faraday Discuss., 2017, Accepted Manuscript
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    Further expanding versatility of surface-enhanced Raman spectroscopy: from non-traditional SERS-active to SERS-inactive substrates and single shell-isolated nanoparticle

    S. Ding, E. You, J. Yi, J. Li and Z. Tian, Faraday Discuss., 2017, Accepted Manuscript , DOI: 10.1039/C7FD00144D

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