When giving an overview for the crystal growth kinetics, we can't overlook the influence and power of the classical kinetic model—Ostwald ripening (OR) mechanism.31–33 Early studies on the kinetic model for coarsening of crystals were almost based on the OR mechanism, which involves the growth of larger particles at the expense of smaller ones. The driving force for this process is the decrease in total surface free energy. According to the Gibbs–Thomson equation,34 the equilibrium solute concentration at the surface of larger particles is lower than that of smaller ones and the resulting concentration gradients lead to solute ions flowing from small particles to larger ones. The coarsening mechanism is often controlled by the diffusion, particle growth via addition of ions to the particle surface from solution. Fig. 1a illustrates the crystal growth via the OR mechanism. The classical kinetic model for the OR mechanism is known as the LSW model which is based on the Gibbs–Thomson equation.33,35 The general kinetic equation for these cases can be written as