A kinetic Monte Carlo simulation of organic particles hetero-patterning on template-induced surface

In this paper, the hetero-patterning of organic particles on template-induced surface are systematically studied by a series of kinetic Monte Carlo simulations. The details of anisotropic growth process, the dependence of aggregation morphology on interactions and the effects of geometrical sizes are obtained. The simulated results showed that the size of prepattern plays a crucial role in the hetero-structure growth process. Especially for the deposited morphology, the thickness of organic film is relevant with the prepattern size. In the simulation, the dependence of deposition morphology on the amount of deposited particles is also obtained. The results also showed that the thickness ratio on two type squares even can be completely controlled by the amount of deposited particles. Besides the size of template and the amount of deposited particles, the interactions between different particles also exhibit strong influence on the deposited morphology. Both the weak and strong organic particle-organic particle interactions can reduce the anisotropic growth, while the moderate value can result in the maximum anisotropic growth. (C) 2016 Elsevier B.V. All rights reserved.