Ab initio study of charge doping effect on 1D polymerization of C60

Details Ab initio study of charge doping effect on 1D polymerization of C60 Ab initio study of charge doping effect on 1D polymerization of C60

2011-05-16

arxiv.org/abs/1105.3000v1

J. Phys.: Cond. Matter 24 (2012) 095501

Physics

Chemical Physics

Scientific paper

10.1088/0953-8984/24/9/095501

We study the interplay between charge doping and intermolecular distance in the polymerization of C60 fullerene chains by means of density functional theory (DFT)-based first principle calculations. The potential energy surface analysis shows that both the equilibrium intermolecular distance of the unpolymerized system and the polymerization energy barrier are inversely proportional to the electron doping of the system. We analyze the origin of this charge-induced polymerization effect by studying the behavior of the system's wavefunctions around the Fermi level and the structural modifications of the molecules as a function of two variables: the distance between the centers of the molecules and the number of electrons added to the system.

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