An effective one-step aqueous-phase synthesis of finely controllable Ag nanorods with tunable short aspect ratios and electronic dynamics properties

Abstract

Ag nanorods with finely controllable aspect ratios (especially 1–5) were synthesized in high yield via an effective one-step aqueous-phase method, in which the longitudinal plasmon modes in visible and infrared regions of short Ag nanorods were well adjustable. Meanwhile, excitation wavelength- and excitation fluence-dependent electronic dynamics of short Ag nanorods were acquired and were found to be regular. This suggested that short Ag nanorods would have great potential in plasmonic and photoelectronic fields.