(Invited) Synergy between Halides and Capping Molecules in the Shape-Selective, Solution-Phase Growth of Metal Nanocrystals: A Theoretical Perspective

摘要

Ag nanocrystals have promising applications in many cutting-edge technologies, which are highly dependent on their shapes. These nanomaterials are typically synthesized using the solution-phase polyol method, which involves AgNO_3 salt, capping agent polyvinylpyrrolidone (PVP), and ethylene glycol as the solvent and reducing agent. Chloride and bromide are often added to achieve robust shape control. In the interest of achieving shape-selective syntheses, understanding the mechanistic origins of shape selectivity is important.