Spray-produced coral-shaped assemblies of MnS nanocrystal clusters.
A novel spray-based technique enables the production of high-quality, free, uncoated semiconductor nanocrystals. Their collection, following spray droplet desolvation during flight, could result in unusual structures. We report on spray-produced ordered clusters (approximately 50 nm diameter) of MnS nanocrystals with grain size range of 1-2 nm and their assembly into micron-sized coral-shaped fractal aggregates. Ballistic cluster-particle aggregation, with the introduction of physical interaction between particles, is suggested as a model for the assemblies' growth.
Amirav
Lilac
L
Department of Chemistry, Solid State Institute, Haifa 32000, Israel.
Lifshitz
Efrat
E