4.7 Article

Influence of Ag nano particles on spectroscopic and luminescence properties of Dy3+ doped borate glasses

Journal

JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 559, Issue -, Pages -

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ELSEVIER
DOI: 10.1016/j.jnoncrysol.2021.120702

Keywords

Silver nanoparticles; Absorption spectra; Raman spectra; LSPR; Photoluminescence

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Silver nanoparticles were synthesized in Dy3+ doped lithium zinc borate glasses by conventional melt quenching method. The impact of silver nanoparticles on the luminescence properties of the glasses was investigated, and the structural characteristics of the glasses were confirmed through XRD measurements as well as Raman and Fourier transform infrared spectra.
Dy3+ doped lithium zinc borate glasses with silver (Ag) nanoparticles (NPs) were synthesized by the conventional melt quenching method. Impact of silver NPs on the luminescence properties of 59B(2)O(3): 20ZnO: 10Na(2)O: 10Li(2)O: 0.5SnO: 0.5Dy(2)O(3) glasses doped with Dy(3+)ions were investigated. Ag+ ions have been reduced and nucleated to AgNPs by thermochemical redox method. Amorphous characteristics of the glasses were confirmed by XRD measurements. Raman and Fourier transform infrared spectra were used to estimate structural and vibrational bands of the glass samples. Localized surface plasmon resonance (LSPR) band is observed at 419 nm for 0.3 mol% of Ag along with three absorption bands of dysprosium were observed. Luminescence studies were performed on these glasses and found that three emission bands at 484, 575, and 665 nm when excited with wavelength of 349 nm, which corresponds to F-4(9/2) to H-6(15/2), F-4(9/2) to H-6(13/2), and E-4(9/2) to H-6(11/2) transitions of Dy3+ ions.

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