Thickness-dependent SERS activities of gold nanosheets controllably synthesized via photochemical reduction in lamellar liquid crystals†
Abstract
Gold nanosheets (AuNSs) with well-tuned thicknesses were synthesized by a facile photochemical reduction method in lamellar liquid crystals. It is found that ∼50 nm thick AuNSs present much stronger surface-enhanced Raman scattering (SERS) effect than that of AuNSs with thicknesses of ∼8 nm and 100 nm.