Abstract
In this paper, the laser wavelength effects on the physical properties of the gold nanoparticle (Au NPs) ablated using laser ablation in the ethanol in the ethanol. In this technique we used a high purity gold target for ablated the NPs and using a tattoo removal Q switching Nd:YAG laser, with a 6 nanosecond pulse duration, 2000 mj energy, 500 laser pulses for ablation and 6 Hz of the frequency, then we investigated of the gold NPs by the structural results as the X-ray diffraction analysis, and the optical analysis. The presented results gives the ablated nanoparticles characteristics, as presented of the results of the XRD, and the UV-vis ablated by laser at different wavelength preparation conditions, where the best preparation condition are at 532 nm better than tha ablated by laser wavelength of 1064 nm.
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