In this work preparation and characterization of a zinc metal target in isopropanol
liquid at room temperature is carried out by PLAL technique at different laser fluency.
The effect of laser fluencies during laser ablation process on the structure properties of
the NPs is investigated.
We have use UV-visible spectroscopy, Atomic force microscopy and Energy dispersive
X-ray (EDX) was used to evaluate the bulk atomic composition of NPs. The absorption
peak of samples prepared in isopropanol solution is seen to be substantially blue shifted
relative to that of the bulk zinc oxide due to the strong confinement effect. The technique
offers an alternative for preparing the nanoparticles of active metal. The morphological
investigation, carried out using (AFM), showed that the root mean square roughness is
increased and the grain size of the obtained NPs are found to increase with the laser
fluency. The use of isopropanol as solvent yielded spherical nanoparticles of 30–60 nm.
Key word: Ablation in liquid, Nanoparticles, PLAL, Optical and structure properties.
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