Chemical Research in Chinese Universities ›› 2021, Vol. 37 ›› Issue (5): 989-1007.doi: 10.1007/s40242-021-1263-7

• Reviews • Previous Articles     Next Articles

Surface-enhanced Raman Scattering of Self-assembled Superstructures

FENG Enduo, TIAN Yang   

  1. School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
  • Received:2021-07-12 Revised:2021-08-05 Online:2021-10-01 Published:2021-09-30
  • Contact: TIAN Yang E-mail:ytian@chem.ecnu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China(Nos.21635003, 21827814, 21811540027), and the Innovation Program of Shanghai Municipal Education Commission, China(No.201701070005E00020).

Abstract: Surface-enhanced Raman scattering(SERS) is a molecular specific spectroscopic technique that amplifies the Raman signal of absorbed molecules for up to 1010times. Over the past decades, SERS substrates experienced rapid growth, resulting in excellent development for SERS analysis. Because the surface plasmonic resonance coupling between individual materials can form a "hotspot" region to maximize the Raman signal, among many substrate construction strategies, self-assembly attracts more attention in constructing superstructures with strong, uniform and stable SERS activity. In addition, a number of plasmon-free nanomaterials with appropriate superstructures samely show enhanced SERS activity, which is primarily attributed to the formation of the optical resonator. This review aims to provide a scientific synopsis on the progress of self-assembled superstructures for SERS and ignite new dis˗ coveries in the SERS platform, as well as SERS applications in various fields.

Key words: Surface-enhanced Raman scattering, Self-assembly, Superstructure, Optical analysis