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A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range ... A scanning electron microscopy image of carbon nanotube bundles.
A single-walled carbon nanotubes (SWCNT) can be envisioned as strip of a graphene molecule (a single sheet of graphite) rolled and joined into a seamless cylinder.The structure of the nanotube can be characterized by the width of this hypothetical strip (that is, the circumference c or diameter d of the tube) and the angle α of the strip relative to the main symmetry axes of the hexagonal ...
STXM image of pod-like carbon nanotube decorated with Fe nanoparticles (red). [1]Scanning transmission X-ray microscopy (STXM) is a type of X-ray microscopy in which a zone plate focuses an X-ray beam onto a small spot, a sample is scanned in the focal plane of the zone plate and the transmitted X-ray intensity is recorded as a function of the sample position.
A scanning tunneling microscopy image of single-walled carbon nanotube. Carbon nanotubes (CNTs) are very prevalent in today's world of medical research and are being highly researched in the fields of efficient drug delivery and biosensing methods for disease treatment and health monitoring.
The nanofocusing technique can create a nanometer-scale "white" light source at the tip apex, which can be used to illuminate a sample at near-field for spectroscopic analysis. The interband optical transitions in individual single-walled carbon nanotubes are imaged and a spatial resolution around 6 nm has been reported. [28]
Scanning gate microscopy (SGM) is a scanning probe microscopy technique with an electrically conductive tip used as a ... Carbon nanotubes too have been ...
1981: Gerd Binnig and Heinrich Rohrer invented the first atomic level microscope called a scanning tunneling microscope that allowed scientists to see individual atoms; 1991: The carbon nanotube was discovered by Sumio Iijima which became important due to their strength, and electrical and thermal conductivity
Carbon nanotube photoluminescence (fluorescence) can be used to observe semiconducting single-walled carbon nanotube species. Photoluminescence maps, made by acquiring the emission and scanning the excitation energy, can facilitate sample characterization.