Abstract
Silver nanoparticles were synthesized using pulsed laser ablation of Ag metal plate in acetone. The pulsed of a Q-switched Nd:YAG laser of 1064 and 532 nm wavelengths at 7 ns pulse width and different fluences is employed to irradiate the solid target in acetone. The UV–Visible absorption spectra of the Ag nanoparticles exhibit absorptions in the ultraviolet and in visible regions because of interband transition and surface plasmon resonance oscillations in Ag nanoparticles, respectively. In the case of nanoparticles produced with laser pulse of 1064 nm, TEM images indicate that with increasing the laser fluence, the average size of the spherical nanoparticles increases. It is found that Ag nanoparticles exhibit photoluminescence emission, at room temperature, in the UV–Visible region due to electron–hole recombination.
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Solati, E., Mashayekh, M. & Dorranian, D. Effects of laser pulse wavelength and laser fluence on the characteristics of silver nanoparticle generated by laser ablation. Appl. Phys. A 112, 689–694 (2013). https://doi.org/10.1007/s00339-013-7812-2
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DOI: https://doi.org/10.1007/s00339-013-7812-2