@inproceedings{e35aadc1ca7b4f0d9c2fe4cf734fff84,
title = "Photomelting and photofragmentation of silver nanoparticles suspended in ethanol",
abstract = "An optical method to obtain a colloidal solution starting from a mixture of silver nanopowder and ethanol is presented. The particles of the silver nanopowder do not exhibit a specific shape, however in the colloidal solution are spherical. This method is carry out when the mixture is irradiated with a pulsed laser at 532 nm via optical fiber. Due to a stronger absorption of the laser light by silver nanoparticles arise both photofragmentation and photomelting processes. The photomelting process starts when the laser energy is 5 mJ/cm2, inducing an enlargement of nanoparticles whereas the photofragmentation occurs when the laser energy is 25 mJ/cm2 causing a reduction on their sizes (the higher energy is, the smaller nanoparticles are). Results show that it is possible to obtain a colloidal silver solution and to control the particle size by adjusting the laser energy. Experiments were performed at 5 and 25 mJ/cm2, and the results are presented.",
keywords = "Silver nanoparticles, colloidal solution, photofragmentation, photomelting, pulsed laser",
author = "Ortega-Mendoza, {J. G.} and C. Hern{\'a}ndez-{\'A}lvarez and A. Padilla-Vivanco and C. Toxqui-Quitl and P. Zaca-Moran and F. Ch{\'a}vez and O. Goiz",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Nanophotonic Materials XII ; Conference date: 12-08-2015 Through 13-08-2015",
year = "2015",
doi = "10.1117/12.2188730",
language = "Ingl{\'e}s",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Gilles Lerondel and Taleb Mokari and Schwartzberg, {Adam M.} and Stefano Cabrini",
booktitle = "Nanophotonic Materials XII",
address = "Estados Unidos",
}