Abstract
It is of great interest to understand the nanowelding of metallic nanoparticles induced by laser illumination due to its potential for offering convenient and controlled means for shape-conversion of nanoparticles and fabrication of nanodevices. However, the real-time kinetics of the nanowelding process were rarely investigated in the literature. In this work, we applied fluorescence microscopy to directly image the nanowelding process of silver nanoparticles (AgNPs) shined with continuous wave laser at 405 nm, and observed the formation of branched structures or assemblies due to nanowelding.
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