Abstract
Mass production at low cost is the biggest challenge that one faces in preparation of metallic
nanoparticles by the laser ablation method in liquid. The use of ketone-suspended thin metal fl akes or
fi ne metal oxide powders as the material allowed to interact with intense nanosecond laser pulses is one
promising solution for maximizing the productivity of metal nanoparticles. This paper introduces how
the system brings about the highest-ever productivity for laser synthesis of e.g., Cu nanoparticles at the
rates ranging from 1.5 to 10 mg W‒1min‒1. This is still far from what is needed for industrial applications
of metal nanoparticles such as conductive pattern making with a highly concentrated nanoparticle
solution, and this paper also addresses how one may possibly fi ll this technical gap.
