Molecular spectroscopies with semiconductor metasurfaces: towards dual optical/chemical SERS

Berestennikov, Alexander; Hu, Haiyang und Tittl, Andreas (2025): Molecular spectroscopies with semiconductor metasurfaces: towards dual optical/chemical SERS. In: Journal of Materials Chemistry C, No. 23: pp. 11499-11514

Abstract

Surface-enhanced Raman spectroscopy (SERS) has emerged as a powerful technique for the ultra-sensitive detection of molecules and has been widely applied in many fields, ranging from biomedical diagnostics and environmental monitoring to trace-level detection of chemical and biological analytes. While traditional metallic SERS substrates rely predominantly on electromagnetic field enhancement, emerging semiconductor SERS materials have attracted growing interest because they offer the additional advantage of simultaneous chemical and electromagnetic enhancements. Here, we review some of the recent advancements in the design and optimization of semiconductor SERS substrates, with a focus on their dual enhancement mechanisms. We also discuss the transition from nanoparticle-based platforms to more advanced nanoresonator-based SERS metasurfaces, highlighting their superior sensing performance.

• Item Type: Journal article
• EU Funded Grant Agreement Number: 101078018
• Faculties: Physics
• Subjects: 500 Science > 530 Physics
• ISSN: 2050-7526
• Language: English
• DFG: Gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - 390776260