Open AccessNovel silicon nanostructures based on graphene ribbons
Author(s) -
Aihua Li,
Kaiwang Zhang,
Lijun Meng,
Jun Li,
Wenliang Li,
Jianxin Zhong
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.4356
Subject(s) - graphene , materials science , zigzag , silicon , nanostructure , amorphous silicon , graphene nanoribbons , amorphous solid , nanotechnology , carbon fibers , molecular dynamics , chemical physics , crystalline silicon , optoelectronics , crystallography , computational chemistry , composite number , composite material , physics , chemistry , geometry , mathematics
In this paperwe have studied formation processes of silicon nanostructures on edges of graphene ribbons by molecular dynamics simulation.We found thatSi atoms in a gas state can be absorbed on the edges of zigzag graphene ribbonsforming different types of silicon nanostructures under different temperature Tnamelyamorphous clusterschain structures and defective chain structures in the intervals 300K≤TT≤2800K and 2800KTT≥3900Kcarbon atoms on the edges of graphene ribbons are gradually replaced by Si atoms.For the graphene ribbons with armchair edgesexistence of multiple adsorption sites does not allow growth of chain-like Si nanostructures.