Materials synthesis in a bubble

Stephan Barcikowski

doi:10.1557/mrs.2019.107

Materials synthesis in a bubble

2019-05-09

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Stephan Barcikowski *

DOI：10.1557/mrs.2019.107

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Ultrasonic sonochemistry and pulsed laser ablation in liquids (LAL) are modern techniques for materials synthesis that are in different ways linked to the formation and collapse of cavitation bubbles. We provide an overview of the physics of laser-induced and acoustically driven bubble oscillations and then describe how the high pressures and temperatures associated with ablation and bubble collapse, as well as emitted shock waves, take part in material synthesis inside and around the bubble. Emphasis is placed on the mechanisms of sonochemical synthesis and modification, and on a step-by-step account of the events from laser ablation through interaction of ablation products with the surrounding liquid up to the modification or aggregation of particles within the bubble. Both sonochemistry and LALs yield nanostructured materials and colloidal nanoparticles with unique properties. The synthesis process has been demonstrated to be scalable.

Keyword:

PULSED-LASER ABLATION

INTERPARTICLE COLLISIONS DRIVEN

REDUCED GRAPHENE OXIDE

SHOCK-WAVE EMISSION

SONOCHEMICAL SYNTHESIS

CAVITATION BUBBLES

NANOPARTICLE PRODUCTIVITY

OPTICAL-BREAKDOWN

PLASMA FORMATION

LIGAND-FREE

Materials synthesis in a bubble

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