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Silver Nanoparticles by Laser Ablation Confined in Alcohol Using an Argon Gas Environment [DOI: 10.2961/jlmn.2016.02.0004]
Ist Teil von
Journal of laser micro nanoengineering, 2016-07, Vol.11 (2), p.158-163
Ort / Verlag
Ibaraki: Japan Laser Processing Society
Erscheinungsjahr
2016
Link zum Volltext
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
The fundamental emission of a Nd:YAG laser (1064 nm), with an energy 0.1 J/pulse and a repetition rate of 10 Hz was employed to synthesize silver nanoparticles by ablation method confined in methanol and ethanol. The experimental setup allows synthesizing materials immersed in flammable solvents using an Argon atmosphere to prevent combustion, making the process safer when high fluence and high repetition rates of laser pulses are used. Transmission electron micrographs were taken for methanol and ethanol samples. The analysis of the methanol sample the day of synthesis and one month later, show that nanoparticles obtained were more dispersed, corresponding to better suspension stability. On the contrary, the images of nanoparticles in ethanol show a strong agglomeration, resulting in a fast sedimentation and less stability.