Open access
Sep 2026
SERS substrate for detecting toxic malachite green molecules based on a multilayer Ag/Cu/Ag nanosphere shell array.
The design of surface-enhanced Raman spectroscopy (SERS) substrates critically requires large-area, spatially uniform distributions of electromagnetic hot spots to ensure high SERS enhancement and broad applicability across analytical, environmental, and biomedical domains. However, conventional fabrication approaches,...
Min Gao, Xiao Yang, Wei-Yan Jia et al.
· Optics Express · 0 citations