Gold nanoparticle production by laser ablation in liquid nitrogen medium followed by cryogenic medium substitution with ethanol |
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| Authors: | P. V. Kazakevich P. S. Yares’ko V. S. Kazakevich D. A. Kamynina |
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| Affiliation: | 1. Lebedev Physical Institute, Branch in Samara, Russian Academy of Sciences, ul. Novo-Sadovaya 221, Samara, 443011, Russia
2. Samara State University, ul. Akad. Pavlova 1, Samara, 443011, Russia
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| Abstract: | The use of liquid nitrogen as a medium for laser ablation made it possible to obtain Au particles shaped as cores, cores/hollow shells, and hollow shells by radiation of a picosecond Nd:YAG laser. In this case, the substitution of the cryogenic liquid medium of the colloid by evaporating on the surface of a room-temperature liquid causes the shift and broadening of the plasmon resonance peak of Au nanoparticles, which results from the formation of fractal nanoparticle aggregates. |
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