Charge gradient-induced on-surface growth of ultralarge single-crystalline Ag nanomembranes for long surface plasmon propagation†
Abstract
A facile strategy for the fabrication of ultralarge (edge length >50 μm), single-crystalline Ag nanomembranes is reported in this work. The Ag nanomembrane with an atomically smooth surface demonstrates a much longer surface plasmonic propagation length as compared to vacuum-deposited polycrystalline Ag film, representing superior plasmonic properties.