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

• The kinetic Monte Carlo simulations were employed to study the hetero-patterning of deposited organic molecules on template-induced surface.
• A detailed and quantitative analysis was conducted to determine the dependence of anisotropic growth on the amount of particles and molecular interactions.
• The effects of prepatterns size and the amount of deposited particles on the organic hetero-structure growth process obtained in the simulations are well consistent with experimental outcome.

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.

Figure optionsDownload as PowerPoint slide