Self Assembly of Patchy Anisotropic Particle Forming Free Standing Monolayer Film

Abstract

Synthesizing thin films using self assembly is one of the important challenges which needs to be addressed for making engineered material using colloidal particle, necessary for creating novel material for photonic, filtration application, etc. Here, a simple model of prolate ellipsoidal particle with two directional bonds is presented and the phase behavior is studied using NVT and NpT Monte Carlo simulation. It is observed that for anisotropic particles with patches two different type of 3D ordered structures are formed along with thermodynamically stable monolayer which is confirmed using thermodynamic integration. The phase diagram shows that the desired 2D super structure can be created using simple self assembly route.

Breaking the size constraint for nano cages using annular patchy particles

“…In Fig. 6(b), we have plotted the orientational correlation function g(y), 37,44 where y is the angle between the unit vector associated with the patch of only the bonded neighbors. We observe that as the number of subunits increases, y -0 thus forming nearly parallel arrangement of the patch vectors.…”

“…To study the kinetics and structure of the system we have used the Brownian cluster dynamics (BCD) 33 method, which is a well-known kinetic Monte-Carlo method. Using Brownian cluster dynamics, a variety of colloidal systems have been modeled with discontinuous potential [33][34][35] for studying both irreversible [36][37][38][39][40] and reversible [41][42][43][44] systems. It was shown that the structure, kinetics and dynamics of BCD and event driven molecular dynamics simulation are the same.…”