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Gas-phase synthesis of carbon nanotube-graphene heterostructures
Saeed Ahmad, Hua Jiang, Kimmo Mustonen +9
Graphene and carbon nanotubes (CNTs) share the same atomic structure of hexagonal carbon lattice. Yet, their synthesis differs in many aspects, including the shape and size of the…
Enhanced Tunnelling in a Hybrid of Single-Walled Carbon Nanotubes and Graphene
Yongping Liao, Kimmo Mustonen, Semir Tulic +9
Transparent and conductive films (TCFs) are of great technological importance. The high transmittance, electrical conductivity and mechanical strength make single-walled carbon nan…
Direct visualization of the 3D structure of silicon impurities in graphene
Christoph Hofer, Viera Skakalova, Mohammad Reza Ahmadpour Monazam +4
We directly visualize the three-dimensional (3D) geometry and dynamics of silicon impurities in graphene as well as their dynamics by aberration-corrected scanning transmission ele…
Revealing the 3D Structure of Graphene Defects
Christoph Hofer, Christian Kramberger, Mohammad Reza Ahmadpour Monazam +5
We demonstrate insights into the three-dimensional structure of defects in graphene, in particular grain boundaries, obtained via a new approach from two transmission electron micr…
Nanopore fabrication and characterization by helium ion microscopy
D. Emmrich, A. Beyer, A. Nadzeyka +4
The Helium Ion Microscope (HIM) has the capability to image small features with a resolution down to 0.35 nm due to its highly focused gas field ionization source and its small bea…