A comparative enhancement of Au and Ag NPs role on radiative properties in Sm3+ doped zinc-sodium tellurite glass: Judd-Ofelt parameter

The optical properties of Eu[Formula: see text] ions in tellurite glass ceramics with the chemical composition 50TeO2–29B2O3–10ZnO–10Na2O–1Eu2O3-based precursor glasses were presented. These precursor glasses have been prepared by melt quenching method in air, followed by thermal annealing at 550[Formula: see text]C for 12 h, 24 h and 36 h. After thermal annealing process, the micro–crystals appeared in host tellurite glasses. Judd–Ofelt (JO) parameters were calculated from the photoluminescence (PL) spectral measurements. The [Formula: see text], [Formula: see text] and [Formula: see text] parameters have been used to estimate the radiative properties of Eu[Formula: see text] ions in tellurite glass ceramics such as transition probabilities, branching ratio, radiative lifetimes and stimulated emission cross-section. The results of tellurite glass ceramic have been discussed and compared with the similar studies.

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

Materials ◽

10.3390/ma12213516 ◽

2019 ◽

Vol 12 (21) ◽

pp. 3516 ◽

Cited By ~ 3

Author(s):

Marwa Ennouri ◽

Luukas Kuusela ◽

Ifa Jlassi ◽

Bernard Gelloz ◽

Laeticia Petit ◽

...

Keyword(s):

Spectroscopic Properties ◽

Phosphate Glasses ◽

Radiative Properties ◽

Ligand Field ◽

Structural And Optical Properties ◽

Ag Nps ◽

Heat Treated ◽

Field Symmetry ◽

Quenching Method ◽

The Impact

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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Spectroscopic Study of Neodymium(III) in Sodium Tellurite Glass

Journal of the American Ceramic Society ◽

10.1111/j.1151-2916.2002.tb00283.x ◽

2002 ◽

Vol 85 (6) ◽

pp. 1377-1382 ◽

Cited By ~ 16

Author(s):

Hong Li ◽

S. Kamakshi Sundaram ◽

P. A. Blanc-Pattison ◽

Liyu Li

Keyword(s):

Spectroscopic Study ◽

Tellurite Glass ◽

Sodium Tellurite

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Luminescence Features of Silver Nanoparticles Sensitized Samarium Doped Boro-Zinc Tellurite Glasses

Materials Science Forum ◽

10.4028/www.scientific.net/msf.846.96 ◽

2016 ◽

Vol 846 ◽

pp. 96-101

Author(s):

Sib Krishna Ghoshal ◽

Masni Shafie@Haron ◽

M.R. Sahar

Keyword(s):

Metallic Nanoparticles ◽

Tellurite Glass ◽

Emission Cross Section ◽

Localized Surface Plasmon ◽

Spectral Features ◽

Tellurite Glasses ◽

Ag Nps ◽

Co Doping ◽

Quenching Method ◽

Average Size

Spectral features modification of rare earth (RE) doped tellurite glasses via controlled manipulation of metallic nanoparticles (NPs) is the current challenge in achieving enhanced lasing action. Triggering the localized surface plasmon resonance (SPR) of NPs in the glass generates tremendous applied interests especially in solid state lasers and nanophotonics. Despite several promising features of RE doped zinc-boro-tellurite glass, the low absorption and emission cross-section of RE ions prohibit them from fabricating efficient lasers. This drawback needed to overcome and significant enhancement of spectral features is required. Co-doping by rare earths and/or embedding metallic NPs (acts as sensitizer) are demonstrated to be the alternative route to surmount such shortcomings. Series of glass samples with composition 74TeO2–15B2O3–10ZnO– 1Sm2O3 – (x)Ag, where 0 ≤ x ≤ 0.1 mol% (in excess) are prepared using melt quenching method and the impacts of silver (Ag) NPs concentrations in altering their photoluminescence properties are inspected. The XRD spectra confirmed the amorphous nature of prepared glasses and the presence of Ag NPs are evidenced in EDX spectra. TEM micrographs revealed the distribution of Ag NPs with average size 7.2 nm. Absorption spectra revealed eight bands which most intense between 6F11/2 and 6F1/2. Photoluminescence spectra exhibited three prominent peaks corresponding to the transition from the excited state 4G5/2 to 6H5/2, 6H7/2, and 6H9/2 states, respectively. Our observation may be useful for the development of tellurite glass based nanophotonic devices.

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