Scalable synthesis of cubic Cu1.4S nanoparticles with long-term stability by laser ablation of salt powder†
Abstract
Cubic Cu1.4S nanoparticles were synthesized on a large scale by laser ablation of salt powder dispersed in an organic solvent. A metastable Cu1.4S phase was formed at high temperature in a reductive solvent and was maintained at room temperature due to the quenching effect of the pulsed laser. The cubic Cu1.4S nanoparticles show good stability after being exposed to ambient atmosphere for as long as 1 month.