Issue 7, 2022

Semiconductor-based surface enhanced Raman scattering (SERS): from active materials to performance improvement

Abstract

Surface enhanced Raman scattering (SERS) is a powerful spectral analysis technique and has exhibited remarkable application prospects in various fields. The design and fabrication of high-performance SERS substrates is key to promoting the development of SERS technology. Apart from noble metal substrates, non-metal substrates based on semiconductor materials have received increasing attention in recent years owing to their unique physical, chemical, and optical properties. However, compared with noble metal substrates, most semiconductor substrates show weak Raman enhancement ability. Therefore, exploring effective strategies to improve the SERS sensitivity is an urgent task. Numerous reviews have outlined the research progress of semiconductor SERS substrates, which mainly focused on summarizing the material category of semiconductor substrates. However, reviews that systematically summarize the strategies for improving the SERS performance of semiconductor substrates are lacking. In this review, we comprehensively discuss the research on semiconductor SERS from the aspects of mechanism, materials, and modification. Firstly, the Raman enhancement mechanism of semiconductor substrates and the SERS-active materials are discussed. Then, we summarize several effective approaches to boost the SERS performance of semiconductor substrates. In conclusion, we propose some prospects for this field.

Graphical abstract: Semiconductor-based surface enhanced Raman scattering (SERS): from active materials to performance improvement

Article information

Article type
Minireview
Submitted
30 noy 2021
Accepted
22 fev 2022
First published
24 fev 2022

Analyst, 2022,147, 1257-1272

Semiconductor-based surface enhanced Raman scattering (SERS): from active materials to performance improvement

X. Wang, E. Zhang, H. Shi, Y. Tao and X. Ren, Analyst, 2022, 147, 1257 DOI: 10.1039/D1AN02165F

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