The Role of Porosity in SERS

Identifier:  imarina:9463944

Handle: https://hdl.handle.net/20.500.11797/imarina9463944

Authors:  Correa-Duarte, MA; Becerril-Castro, IB; Alvarez-Puebla, RA

Abstract:
Porosity serves as a critical design parameter in advancing surface-enhanced Raman scattering (SERS) spectroscopy by simultaneously addressing two fundamental challenges: analyte concentration and electromagnetic field enhancement. This review systematically examines how precisely engineered porous architectures including intrinsic nanoporous metals, functional polymer matrices, mesoporous silica hybrids, and crystalline metal-organic frameworks (MOFs), create synergistic platforms that significantly boost SERS performance. The unique pore structures of these materials provide three key advantages: 1) enhanced molecular enrichment near plasmonic surfaces through size-selective trapping, 2) increased density of electromagnetic hotspots via nanoscale cavity engineering, and 3) improved substrate stability and reusability.