Effect of buffer gas pressure on the cooling rate and size of zinc sulfide nanoparticles ablated by ultrashort laser pulses
Kharkova A. V.1, Kochuev D. A.1, Galkin A. F.1, Khorkov K. S.1
1Stoletovs Vladimir state university, Vladimir, Russia
Email: alenaenergie@gmail.com
The influence of microphysical processes in the synthesis of nanoparticles has been studiying. The effect of buffer gas and pressure on the cooling rate of ZnS nanoparticles obtained by ablation with ultrashort laser pulses is estimating. Elastic collisions of nanoparticles with buffer gas atoms are considering as the dominant process. The results of estimating the cooling time of ZnS nanoparticles with sizes 10-9, 10-8, 5· 10-8, and 10-7 m, depending on the buffer gas pressure, are presenting. Keywords: Ablative synthesis of zinc sulfide nanoparticles, control of nanoparticle dispersion, femtosecond laser ablation.
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