Red ruby glass from gold nanoparticles obtained by LASiS - a new approach
authors Almeida, JC; Davim, EJC; Salvado, IMM; Fernandes, MHV; Costa, FM; Rey-Garcia, F; Francisco, LM; Lopes, AB
nationality International
journal JOURNAL OF NON-CRYSTALLINE SOLIDS
author keywords Laser; Ablation; LASiS; Sol-gel; Red glass
keywords PULSED-LASER ABLATION
abstract Currently, most of the red colored glasses are still produced using cadmium sulfoselenide, despite its high toxicity. Alternative solutions, more environmentally friendly, have been sought, most of them going through the use of gold or copper nanoparticle, the color being obtained by striking. This work presents a new methodology for production of a red colored glass by the incorporation of gold nanoparticles in the melt, trying to take advantage of an amorphous silica layer involving the nanoparticles. Gold nanoparticles (AuNP) were produced by laser ablation synthesis in solution (LASiS), using a solution of tetra-ethyl orthosilicate (TEOS) and isopropanol (IPA). A xerogel was prepared using the TEOS:IPA:AuNp suspension, mixed with a alkaline-earth aluminosilicate colorless glass and melted at 1350 degrees C producing a glass with an intense and homogeneous ruby red color without the need of a striking stage.
publisher ELSEVIER
issn 0022-3093
year published 2020
volume 537
digital object identifier (doi) 10.1016/j.jnoncrysol.2020.119987
web of science category Materials Science, Ceramics; Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000527029100001
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journal analysis (jcr 2019):
journal impact factor 2.929
5 year journal impact factor 2.653
category normalized journal impact factor percentile 71.855
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