Abstract

Pulsed laser ablation in liquids promotes the formation of tin/tin oxide core/shell nanoparticles which are collected in the ethylene glycol as colloids, that is how the solar nanofluid is created which is a new concept of solar receiver. This novel idea for efficiently harvesting solar energy is based on volumetric absorption of directly irradiated nanoparticles in a heat transfer fluid. Thanks to the reactive laser ablation, it shows a higher efficiency than the one produced by commercial tin nanoparticles.