Fabrication of a nanowire array surrounded by hexagonally ordered cylindrical walls and structure-enhanced SERS performance #MMPMID41347347
Liu S; Song J; Feng S; Li J; Wang X; Wang X; Jiang D; Liu G
Chem Commun (Camb) 2025[Dec]; ? (?): ? PMID41347347show ga
Conventional reactive ion etching (RIE) treats byproducts as waste contaminants. This study proposes a novel approach to actively utilize zinc-introduced byproducts (ZnF(2)) for fabricating a nanowire array surrounded by hexagonally ordered cylindrical walls (HOCW-NWA). By harnessing synergistic Au/ZnF(2) interactions, this method enables precise nanoarchitecture control. Surface-enhanced Raman spectroscopy (SERS) tests show that the structure achieves a remarkable structural enhancement in the detection performance. This work not only provides a high-performance SERS substrate but also opens a new avenue for turning etching byproducts into functional micro/nanostructures.