Laser Processing of Functional Nanoparticles

Dear Colleagues,

Nanoparticles (NPs), particles with dimensions in the nanometer range, are essential in a number of scientific and industrial applications, such as in optics, optoelectronics, electronics, biomedicine, pharma, health, food, catalysis, energy conversion and storage, or car manufacturing. The present Special Issue is concerned with the synthesis of NPs using laser ablation of solid targets in a gaseous or a liquid environment, and the collection of the NPs in the form of nanopowder or a colloidal solution. This fast and straightforward method does not require toxic, hazardous, or pyrophoric chemical precursors, and thus is an environmentally friendly (“green”) method. In water, the resulting NPs in colloidal solutions are ultrapure, (not containing stabilizing counterions or reaction by-products), thus facilitating use in medical in vivo applications.

The properties of the produced NPs—shape, size, size distribution, composition, and structure—depend on the laser parameters such as wavelength, pulse repetition rate, pulse width, pulse energy, and fluence, as well as on the environment (vacuum, gas or liquid).

Laser ablation in liquid of a solid target, also called laser ablation synthesis in solution (LASiS), e.g., consists of a number of interplaying processes beyond the knowledge of basic laser ablation. The present issue is tackling the optical, thermal and mechanical mechanisms taking place in the solid, at the interface, and is concerned with post irradiation processes of already produced NPs.

Prof. Dr. Wolfgang Kautek
Guest Editor

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