Preparation of triangular silver nanoplates by improved light-driven seed growth method

Abstract

Triangular silver nanoplates have been synthesized by the improved light-driven seed growth method with only trisodium citrate as both photoreducing reagent and capping reagent under the irradiation of sodium lamp. • Triangular silver nanoplates (TSNPs) can exhibit tunable plasmonic properties across the entire visible spectrum and in the near-infrared region. • TSNPs have been synthesized by the improved light-driven seed growth method with only trisodium citrate as both photoreducing reagent and capping reagent. • The simple rapid preparation process will make it apply in large scale. Triangular silver nanoplates (TSNPs) have attracted much attention for their tunable plasmonic properties. In this letter, TSNPs have been synthesized by the improved light-driven seed growth method with only trisodium citrate (TSC) as both photoreducing reagent and capping reagent. By means of this high efficient method, TSNPs could be produced in high yield. As a kind of promising material, TSNPs will be used for chemical and biological sensing, and they can also be applied in optical limiters against high intensity laser pulse.