Metallic and semiconductor nanomaterials for surface-enhanced Raman spectroscopy

Area of Science:

• Spectroscopy
• Materials Science
• Nanotechnology

Background:

• Surface-enhanced Raman spectroscopy (SERS) is a highly sensitive detection technique.
• SERS performance depends on substrate material's localized surface plasmon resonance (LSPR) and charge transfer.
• Optimizing SERS requires strategic design of substrate nanomaterials.

Purpose of the Study:

• To review recent advancements in SERS substrate nanomaterials.
• To highlight research on metallic, semiconductor, and plasmonic metal-semiconductor substrates.
• To provide theoretical guidance for SERS substrate design and explore future trends.

Main Methods:

• Review of current literature on SERS substrate nanomaterials.
• Analysis of research trends in metallic and semiconductor SERS substrates.
• Discussion of plasmonic metal-semiconductor nanomaterials for SERS.

Main Results:

• Metallic SERS substrates focus on nanoscale structural adjustments for enhanced signal and broader applications.
• Semiconductor SERS substrates emphasize morphology and defect tuning to increase application potential.
• Plasmonic metal-semiconductor nanomaterials represent an emerging area in SERS substrate design.

Conclusions:

• Designing advanced SERS substrates is critical for enhancing detection sensitivity.
• Continued research into SERS enhancement mechanisms and applications is encouraged.
• This review provides a foundation for future SERS substrate development.