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Effect of nanostructured silicon on surface enhanced Raman scattering
Gang Lu1, Guilin Wang1, Hai Li1
1Key Laboratory of Flexible Electronics (KLOFE), & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211816 China iamhli@njteh.edu.cn.
RSC Advances
|May 11, 2022
Summary
Silicon morphology significantly impacts Surface-Enhanced Raman Spectroscopy (SERS) enhancement. Understanding this relationship in metal-nonmetal composites is key to developing more efficient SERS systems.
Area of Science:
- Materials Science
- Spectroscopy
- Nanotechnology
Background:
- Non-metallic materials are integral to Surface-Enhanced Raman Spectroscopy (SERS) systems, often forming composites with SERS-active metals.
- The precise role of non-metallic structures and their influence on SERS signal enhancement remain incompletely understood.
Purpose of the Study:
- To investigate the effect of silicon morphology on SERS enhancement.
- To elucidate the contribution of non-metallic components in metal-nonmetal SERS composite systems.
Main Methods:
- Fabrication of silver nanoparticles-coated silicon surfaces with varying morphologies.
- Characterization of the morphological features of the silicon substrates.
- Evaluation of SERS enhancement performance using these composite structures.
Main Results:
- Demonstrated a clear correlation between silicon surface morphology and SERS signal intensity.
- Observed distinct differences in SERS enhancement based on the structured silicon substrates used.
Conclusions:
- Silicon morphology plays a crucial role in modulating SERS enhancement in composite systems.
- Findings contribute to a deeper understanding of SERS mechanisms.
- Provides a foundation for designing optimized SERS substrates for enhanced performance.
