NDLI: Effects of Copper Metallic Nanoparticles on Structural and Optical Properties of Antimony Phosphate Glasses Co-Doped with Samarium Ions

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Effects of Copper Metallic Nanoparticles on Structural and Optical Properties of Antimony Phosphate Glasses Co-Doped with Samarium Ions

Content Provider	MDPI
Author	Pascuta, Petru Stefan, Razvan Olar, Loredana Elena Bolundut, Liviu Calin Culea, Eugen
Copyright Year	2020
Description	New antimony phosphate glasses doped with samarium (III) oxide and co-doped with copper metallic nanoparticles (CuNPs) were obtained by the melt quenching technique. The samples were analyzed by X-ray diffraction analysis (XRD), electron paramagnetic resonance (EPR), ultraviolet-visible (UV–Vis) and photoluminescence (PL) spectroscopies. XRD data suggested that all the obtained samples showed an amorphous nature. EPR data suggested the existence of Cu2+ ions octahedrally surrounded by six oxygen atoms. The dipole–dipole interactions between Cu2+ ions were predominant. UV–Vis spectra revealed the presence of Sm3+ and Cu2+ ions in the samples. The values for nephelauxetic and bonding parameters were also calculated. The negative values obtained for bonding parameter indicate an ionic character of the bonds from the glass network. Photoluminescence spectra exhibited emissions from samarium ions and revealed the influence of dopant nature on of rare-earth ions emissions. The obtained results indicate that the studied materials are suitable for solid state lasers.
Starting Page	5040
e-ISSN	19961944
DOI	10.3390/ma13215040
Journal	Materials
Issue Number	21
Volume Number	13
Language	English
Publisher	MDPI
Publisher Date	2020-11-09
Access Restriction	Open
Subject Keyword	Materials Spectroscopy Copper Metallic Nanoparticles Doped Samarium Antimony Phosphate Glasses Xrd Epr Photoluminescence Uv–vis
Content Type	Text
Resource Type	Article

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