Separation-dependence evolution of inter-particle interaction in the oriented-attachment growth of nanorods: a case of hexagonal nanocrystals

Abstract

Previous reports only evaluated the correlation between oriented-attachment growth and part of the interaction, i.e., either van der Waals interaction or Coulombic interaction. By focusing on hexagonal nanorods, a relatively complex form of 1D nanocrystals, this article takes into account both dominant interactions and systematically investigates their countering effects on the separation dependence of the inter-particle interaction in the oriented-attachment growth of 1D nanocrystals. As elucidated by the Arrhenius equation, the growth kinetics and thermodynamics of oriented-attachment nanocrystals can thus be evaluated with such quantitatively resolved inter-particle interactions between the attaching objects.