Effect of silver nanoparticles on spectroscopic properties of Er3+ doped phosphate glass

Soltani, Iman; Hraiech, S.; Horchani−Naifer, Karima; Elhouichet, Habib; Férid, Mokhtar

doi:10.1016/j.optmat.2015.05.003

Cited by 52 publications

(15 citation statements)

References 41 publications

(42 reference statements)

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“…The larger the product, the wider gain bandwidth and higher pumping efficiency. The bandwidth quality factors are similar to those reported for phosphate glass (179.73 10 −21 cm 2 ·nm) [46] and bismuth glass (280.60 10 −21 cm 2 ·nm) [47]. It is worth pointing out that the sample doped with 2 mol% Ag 2 O (Ag2) has a large bandwidth quality factor (205.82 10 −21 cm 2 ·nm) indicating that this glass may be a good candidate for an Erbium doped fiber amplifier (EDFA) host.…”

Section: Resultssupporting

confidence: 84%

Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

et al. 2019

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Glasses with the system (84.60-x) NaPO3-5 ZnO-(9.40-x) NaF-x Ag2O-1 Er2O3, (x = 0, 2, 4, and 6) (mol%) were synthesized by the conventional melt-quenching method. The impact of the addition of Ag2O on the physical, thermal, structural, and optical properties of the glasses is discussed. The Judd-Oflet analysis was used to evaluate the radiative properties of the emission transitions of the glasses. The enhancement of luminescence properties due to Ag2O is discussed in terms of consequent changes in the local electromagnetic field, symmetry, and the ligand field around the Er3+ ion. The heat treatment of the glass was performed in order to precipitate Ag nanoparticles (NPs), which form as a layer at the surface of the heat-treated glasses as confirmed using scanning electron microscopy (SEM). The Ag NPs were found to increase the intensity of the emission at 1.5 µm.

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Section: Resultssupporting

confidence: 84%

Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

et al. 2019

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“…This broad luminescence band may be used to enhance the luminescence of rare earth ions [36]. The energy of emission of all of the silver nanoparticles when plasmon excited oscillate together and may transfer the energy directly to the nearby emission centers like rare earth ions or this collective oscillation may produce the high electric field which may also excite the rare earth ions and help in improving the emission of rare earth ions [34][35][36][37]. This plasmonic phenomenon can be used in enhancing the luminescence of the rare earth ions which used in the LED applications.…”

Section: Photoluminescence Studymentioning

confidence: 99%

Enhanced Luminescence of Silver Nano-particles Doped Na2O-BaO-Borate Glasses

D¹,

Eraiah²

2020

J. Mater. Appl.

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Na2O-BaO-Borate glasses were synthesized with silver nano-particles of varying silver concentrations by the method of melt-quenching. Their densities of the glasses and hence molar volumes were computed. The existence of the silver nano-particles was depicted by characteristic band in the absorption spectra of UV- Visible studies known as plasmon band. Further the matrix also showed a small amount of nanostructures of the host which imparts the nonlinear behaviour. They were further visualized by the Scanning and Transmission electron microscopy. Optical band gap and Urbach energies were found. The band gap values change exactly in the opposite manner of density with silver doping. The wide luminescence band in the visible region formed for the excitation of plasmon band may be utilized for the luminescence enhancement of luminescent material like rare earth ions. The very significant result perceived from this is that the glass as such with silver nano-particles showed broad emission in the, green & blue portions of electromagnetic spectrum in the close vicinity of white light with the variation of silver content which can be utilized for the enrichment of the emission of lanthanide ions in the visible section of electro-magnetic spectrum.

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“…With the calculated band gap energy, we determined the refractive index (n 0 ) by solving the 7 following expression [26] (3)…”

Section: Band Gap and Refractive Indexmentioning

confidence: 99%

Spectroscopic characterizations of Er doped LaPO4 submicron phosphors prepared by homogeneous precipitation method

et al. 2016

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Hexagonal shaped LaPO 4 submicron particles doped with various concentrations of Er were successfully prepared by homogenous precipitation method using metal nitrates and ammonium phosphate. Particles of approximate particle size 125 nm and size distribution of 85 nm are obtained with good crystallinity. After heat treatment at 1200 0 C for 2 hrs, the particles are characterized for their various optical properties such as absorption, emission, fluorescence decay and optical band gap. Optical absorption and emission data are numerically analyzed with the help of Judd-Ofelt model to evaluate various radiative spectral properties such as radiative decay rates, radiative quantum yield, emission cross-section and fluorescence branching ratios of various emission transitions. Though the radiative quantum yield of 1554 nm emission approaches the theoretical limit of 100%, the experimentally measured quantum yield is only 11% at 12 W/cm 2 at 980 nm excitation power density in 2% Er doped LaPO 4 .

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Effect of silver nanoparticles on spectroscopic properties of Er3+ doped phosphate glass

Cited by 52 publications

References 41 publications

Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

Enhanced Luminescence of Silver Nano-particles Doped Na2O-BaO-Borate Glasses

Spectroscopic characterizations of Er doped LaPO4 submicron phosphors prepared by homogeneous precipitation method

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