Precipitation of Silver Nanoparticles in Borate Glasses by 1064 nm Nd:YAG Nanosecond Laser Pulses: Characterization and Dielectric Studies
| Autor: | A.A. Menazea, N. A. Hakeem, A.M. Abdelghany, F. H. Abd El-Kader, W. H. Osman |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Analytical chemistry chemistry.chemical_element Nanoparticle Borate glass 02 engineering and technology Dielectric Yttrium 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Silver nanoparticle Electronic Optical and Magnetic Materials Silver nitrate chemistry.chemical_compound chemistry 0103 physical sciences Materials Chemistry Dielectric loss Electrical and Electronic Engineering 0210 nano-technology Boron |
| Zdroj: | Journal of Electronic Materials. 49:826-832 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-019-07736-z |
| Popis: | This work aims to present a modern process to synthesis nanoparticles in a glassy matrix. Borate glasses doped by silver nitrate (AgNO3) via the melt annealing technique were irradiated by a (1064 nm wavelength) Nd:YAG (Neodymium–doped Yttrium Aluminum Garnet) laser to yeild precipitation of silver nanoparticles (AgNPs) in borate glasses. The characterization of the irradiated glasses was investigated using ultraviolet/visible (UV/Vis.), x-ray diffraction (XRD), high resolution-transmission electron microscopy (HR-TEM), field emission-scanning electron microscopy (FE-SEM), and dielectric properties. XRD patterns depict the presence of sharp diffraction peaks at 111 and 200 planes that can be attributed to the precipitated AgNPs in the borate glass sample after laser irradiation. A significant change in color was observed within the borate glass after laser irradiation, which was attributed to the appearance of surface plasmon resonance and confirmed the presence of AgNPs in the borate glass. The morphological properties and the distribution of the observed AgNPs inside the sample were performed via HR-TEM and FE-SEM. The behavior of dielectric constant and dielectric loss progressively decreased as the frequency increased. The values of AC conductivity increased as the temperature of the borate glass matrix increased. |
| Databáze: | OpenAIRE |
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