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Spatially controlled dissolution of Ag nanoparticles in irradiated SiO2 sol-gel film |
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| Authors: | J Massera J Choi L Petit M Richardson K Richardson |
| Institution: | a School of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA b Institut de Chimie de la Matiere Condensee de Bordeaux (ICMCB), CNRS UPR 9048, Av. du Dr. A. Schweitzer, 33608 Pessac Cedex, France c College of Optics, Center for Research and Education in Optics and Lasers (CREOL), University of Central Florida, Orlando, 4000 Central Florida Boulevard, FL 32816, USA d Nkanea Technologies Inc., 6440 Aylworth Drive, Frisco, TX 75035, USA |
| Abstract: | In this paper, we report the spatially controlled dissolution of silver nanoparticles in irradiated SiO2 sol-gel films. The Ag nanoparticles have been formed in the sol-gel solution before the film deposition by adding Triton and ascorbic acid and also after the film deposition using a heat treatment at 700 °C for few minutes or at 550 °C for 6 h in reducing atmosphere. Using a spectrometer, a new view white light interferometer and a micro-thermal analyzer, we demonstrate that the silver nanoparticles can be dissolved using a continuous black ray UV lamp or with a near-infrared (NIR) femtosecond laser, due to a significantly increase in the local temperature. We confirm that the micro-thermal analyzer can be used as a new tool to study the dissolution of metallic nanoparticles in thin film if located at the surface of the films. |
| Keywords: | A Glasses A Optical materials A Thin films A Optical properties A Surface properties |
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