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Laser ablation or photoablation (also called laser blasting [1] [2] [3]) is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. At low laser flux, the material is heated by the absorbed laser energy and evaporates or sublimates .
Laser ablation synthesis in solution (LASiS) is a commonly used method for obtaining colloidal solution of nanoparticles in a variety of solvents. [ 1 ] [ 2 ] Nanoparticles (NPs,), are useful in chemistry, engineering and biochemistry due to their large surface-to-volume ratio that causes them to have unique physical properties. [ 3 ]
The laser ablation method yields around 70% and produces primarily single-walled carbon nanotubes with a controllable diameter determined by the reaction temperature. However, it is more expensive than either arc discharge or chemical vapor deposition. [4]
Laser absorption on the target surface and laser ablation of the target material and creation of a plasma; Dynamic of the plasma; Deposition of the ablation material on the substrate; Nucleation and growth of the film on the substrate surface; Each of these steps is crucial for the crystallinity, uniformity and stoichiometry of the resulting film.
In contrast, another "priority area," nanofabrication, is defined as "the ability to fabricate, by directed or self-assembly methods, functional structures or devices at the atomic or molecular level" (p. 67). Nanomanufacturing appears to be the near-term, industrial-scale manufacture of nanotechnology-based objects, with emphasis on low cost ...
In medicine, ablation is the removal of a part of biological tissue, usually by surgery. Surface ablation of the skin (dermabrasion, also called resurfacing because it induces regeneration) can be carried out by chemicals (chemoablation), by lasers (laser ablation), by freezing (cryoablation), or by electricity (fulguration).
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All well-established techniques of carbon nanotube growth, such as arc-discharge, [3] [14] laser ablation [15] [16] and chemical vapor deposition, [17] are used for mass-production of BN nanotubes at a tens of grams scale. [13] BN nanotubes can also be produced by ball milling of amorphous boron, mixed with a catalyst (iron powder), under NH 3 ...