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Updated: Oct 19, 2025
05:52
Observation and Analysis of Blinking Surface-enhanced Raman Scattering
Published on: January 11, 2018
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Surface Enhanced Raman Scattering Revealed by Interfacial Charge-Transfer Transitions.
Shan Cong1, Xiaohong Liu2, Yuxiao Jiang1
1Key Lab of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123, China.
Innovation (Cambridge (Mass.))
|September 24, 2021
Summary
Surface enhanced Raman scattering (SERS) performance relies on substrate materials. Non-metal substrates, like graphene and MXenes, show boosted SERS activity via charge transfer, distinct from plasmonic metals.
Area of Science:
- Materials Science
- Spectroscopy
- Nanotechnology
Background:
- Surface-enhanced Raman scattering (SERS) is a powerful analytical technique.
- Traditional SERS relies on plasmonic metal substrates for electromagnetic enhancement.
- Emerging non-metal substrates offer alternative SERS enhancement mechanisms.
Purpose of the Study:
- To review basic concepts of SERS enhancement.
- To highlight recent advances in non-metal semiconducting SERS substrates.
- To discuss novel manipulation strategies and applications of these substrates.
Main Methods:
- Review of existing literature on SERS substrates.
- Analysis of charge-transfer mechanisms in non-metal SERS.
- Categorization of recent semiconducting materials for SERS.
Main Results:
- Non-metal substrates like graphene, MXenes, and organic molecules exhibit significant SERS activity.
- Chemical enhancement via interfacial charge transfer is a key mechanism in these non-metal systems.
- Novel manipulation strategies are enabling advanced applications.
Conclusions:
- Non-metal semiconducting substrates provide a promising alternative to traditional plasmonic SERS materials.
- Understanding charge-transfer mechanisms is crucial for optimizing SERS performance.
- These versatile substrates open new avenues for SERS applications.
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