Synthesis of near-infrared fluorescent, elongated ring-like Ag2Se colloidal nanoassemblies

Abstract

A low-temperature, air-exposed, hot-injection process has been developed for the synthesis of water-dispersible Ag₂Se quantum dots. The 3-mercaptopropionic acid capped quantum dots were shown to be elongated ring-like self-assembled nanostructures with prominent near-infrared fluorescent absorptions and emissions.