2008/01/16 by Fangping OuYang, Fangping Ouyang, OuYang, Fangping +9
Engineering · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #FOS: Physical sciences #Graphene research and applications #Materials Science (cond-mat.mtrl-sci) #Molecular Junctions and Nanostructures #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.0801.2425
13 pages, 3 figures
arxiv created 2008/01/16 · openalex publication_date 2008/01/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Graphene nanoribbons (GNRs) based T junctions were designed and studied in this paper. These junctions were made up of shoulders (zigzag GNRs) joined with stems (armchair GNRs). We demonstrated the intrinsic transport properties and effective boron (or nitrogen) doping of the junctions by using first principles quantum transport simulation. Several interesting results were found: i) The I-V characteristics of the pure-carbon T junctions were shown to obey Ohm law and the electrical conductivity of the junction depends on the height of the stem sensitively. ii) boron (or nitrogen) doping on the stems doesnt change the Ohm law of the T junctions, but the result is opposite when doping process occurs at the shoulders. This feature could make such quasi-2D T junction a possible candidate for nanoscale junction devices in a 2D network of nanoelectronic devices in which conducting pathways can be controlled.