Proof‐of‐Concept Studies Directed toward the Formation of Metallic Ag Nanostructures from Ag3PO4 Induced by Electron Beam and Femtosecond Laser. (7th April 2019)

• Record Type: Journal Article
• Authors: dos Santos, Clayane Carvalho; de Assis, Marcelo; Machado, Thales Rafael; dos Santos Pereira, Paula Fabiana; Minguez‐Vega, Gladys; Cordoncillo, Eloisa; Beltran‐Mir, Hector; Doñate‐Buendía, Carlos; Andrés, Juan; Longo, Elson
• Is Part Of: Particle and particle systems characterization. Volume 36:Number 6(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-04-07
• Subjects: Ag nanoparticles -- Ag3PO4 -- electron beam -- femtosecond laser; Particles -- Periodicals; 620.43
• DOI: 10.1002/ppsc.201800533
• Languages: English
• ISSNs: 0934-0866

Abstract

Abstract: In this work, for the first time, the instantaneous nucleation and growth processes of Ag nanoparticles on Ag3 PO4 mediated by femtosecond laser pulses are reported and analyzed. The investigated samples are pure Ag3 PO4 sample, electron‐irradiated Ag3 PO4 sample, and laser‐irradiated sample. Complete characterization of the samples is performed using X‐ray diffraction (XRD), Rietveld refinements, field emission scanning electron microscopy, and energy dispersive spectroscopy (EDS). XRD confirms that the irradiated surface layer remains crystalline, and according to EDS analysis, the surface particles are composed primarily of Ag nanoparticles. This method not only offers a one‐step route to synthesize Ag nanoparticles using laser‐assisted irradiation with particle size control, but also reports a complex process involving the formation and subsequent growth of Ag nanoparticles through an unexpected additive‐free in situ fabrication process. Abstract : Pure Ag3 PO4 and Ag3 PO4 samples are irradiated by electrons and laser irradiated. The characterization of the samples is performed by X‐ray diffraction (XRD), Rietveld refinements, Scanning and Transmission Electron Microscopy (SEM/TEM), and Energy Dispersive Spectroscopy (EDS). The XRD confirmed that the irradiated surface layer remains crystalline and, according to EDS analysis, the surface particles are composed mainly of Ag nanoparticles.