Formation of nanoparticles and nano-composites by laser ablation in solution

摘要

Nanometer sized particles and composites can show size dependent physical and chemical properties. Hence, preparation of size-selected and controlled metal nanoparticles in a solution is one crucial subject in chemistry and the physics of nano-scale materials. Much research has been directed for developing methods for their preparation, such as the chemical reduction of metal salt in a micelle or a reversed micelle. On the analogy of the laser ablation for preparing gas-phase clusters, a laser ablation method for the preparation of metal nanoparticles in a liquid has also been developed by many researchers. The first international meeting on "laser ablation in liquid" (ANGEL 2010) was held in 2010 in Switzerland, and there are more numbers of researchers who are involved in this active filed. We overview the recent developments of laser ablation in a solution for nanoparticle production and describe the mechanism of nanoparticles formation, size-reduction, and the relevant physical processes.