Laser Ablation of Individual Gold Nanoparticles in Solution

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Published 2 March 2007 Copyright (c) 2007 The Japan Society of Applied Physics
, , Citation Syoji Ito et al 2007 Jpn. J. Appl. Phys. 46 L241 DOI 10.1143/JJAP.46.L241

1347-4065/46/3L/L241

Abstract

Gold nanoparticles with the diameter of 80 nm were individually set on a glass substrate and ablated in solution, resulting in fixation of their fragments onto the substrate. The experiment enabled us to observe morphological changes of the deposited particles with an atomic force microscope. A series of experiments made clear the followings: the ablation threshold ∼ 120 mJ/cm2, fragmentation initially took place at the surface, the fragments from single particles were deposited in the region of 200–300 nm, and the size of deposited fragments decreased with increasing the shot number.

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10.1143/JJAP.46.L241