Figure 3

Snapshot of the molecular dynamics (MD) system that is fully/partially filled with coarse-grained polymers (decane). The substrate is modeled by carbon atoms with a distance of 0.3 nm between each of the two neighbors, and the growing point (capture probe) on the inner layer is modeled by a silica atom, which has a stronger interaction with polymer than carbon substrate. This MD simulation solidly supports the mechanism of the ‘onion-like’ intermediate state of oligomer formation process. f indicates the filling fraction of polymers.