Green Emission of Tellurite Based Glass Containing Erbium Oxide Nanoparticles

Noorazlan, Azlan Muhammad; Kamari, Halimah Mohamed; Baki, S.O.; Mohamad, Daud W.

doi:10.1155/2015/952308

Cited by 16 publications

(5 citation statements)

References 32 publications

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“…Many absorption bands were detected at 1333, 1132, 994, 944, 854, 826, 707 and 464cm -1 in this spectra. The trigonal BO3 unequal stretching vibrations were observed at 1333cm -1 [12] in the wavenumber range 1200-1600cm -1 , Stretching vibrations of B-O bond in tetrahedral BO4 group in the range 800-1200cm -, BOB bending vibrations and BOBa stretching vibrations were observed.…”

Section: Ftir Studies Of the Silver Doped Glassesmentioning

confidence: 92%

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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Section: Ftir Studies Of the Silver Doped Glassesmentioning

confidence: 92%

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

D¹,

Eraiah²

2020

J. Mater. Appl.

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“…It can be seen that two noticeable peaks centered at 524 nm and 549 nm where both are assigned to green transition ( 4 S3/2 -4 I15/2). The observed bands are due to the stark splitting effects which corresponds to the low symmetry of the local environment around Er 3+ sites [15]. TZEA2 emission bands are at the highest intensity under 532 nm excitation wavelength.…”

Section: High Resolution Transmission Electron Microscopy (Hrtem)mentioning

confidence: 95%

Optimum Lasing Cavity for Erbium Doped Zinc Tellurite Glass Rods Embedded with Ag Nanoparticles

Adnan

Sahar

Sazali

2021

SSP

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A laser cavity was constructed for excitation of erbium doped zinc tellurite glass rods embedded with various concentration of Ag nanoparticles. Central to the system is a Xenon flashlamp for optical pumping, and mirrors to amplify the light waves. The amorphousity of the glass rod was studied by X-ray diffraction and the existence of silver nanoparticles inside the glass was confirmed by high resolution transmission electron microscopy analysis. The photoluminescence properties and differential thermal analysis curve of the samples confirmed the compatibility of the rods as gain medium. The rods were successfully fabricated and incorporated inside the laser cavity. The output of the laser with erbium doped zinc tellurite glass rods embedded with Ag nanoparticles was characterized via spectrum analyser and was found that the spectrum dominated at line 473 nm and 506 nm. The beam profiler was utilized to detect and display the laser beam in 3D.

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“…The small values of Ω 2 and Ω 4 indicated the lower asymmetric nature of the local environment around the erbium ions in the glass system [21]. Ω 6 contradicted Ω 2 and Ω 4 , with Ω 6 not being dependent on the local structure [33]; generally, the rigidity of glass is correlated with these parameters [31]. The glass without vanadium concentration (x = 0) was more rigid than the other glass samples (x = 0.5 mol%-2.5 mol%).…”

Section: Judd-ofelt Analysismentioning

confidence: 97%

Effects of Vanadium on the Structural and Optical Properties of Borate Glasses Containing Er3+ and Silver Nanoparticles

Zaini

Mohamed

2021

Materials

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The erbium-vanadium co-doped borate glasses, embedded with silver nanoparticles (Ag NPs), were prepared to improve their optical properties for potential optical fiber and glass laser application. The borate glasses with composition (59.5–x) B2O3–20Na2O–20CaO–xV2O5–Er2O3–0.5AgCl (x = 0–2.5 mol%) were successfully prepared by conventional melt-quenching method. The structural properties of glass samples were investigated by XRD, TEM and by Fourier transform infrared (FTIR) spectroscopy while optical properties were carried out by UV–Vis spectroscopy by measuring optical absorption and the emission properties were investigated by photoluminescence spectroscopy. The XRD patterns confirmed the amorphous nature of the prepared glass samples whilst the FTIR confirmed the presence of VO4, VO5, BO3 and BO4 vibrations. UV–Vis–NIR absorption spectra reveal eight bands which were located at 450, 490, 519, 540, 660, 780, 980, and 1550 nm corresponding to transition of 4F5/2, 4F7/2, 2H11/2, 4S3/2, 4F9/2, 4I9/2, 4I11/2, and 4I13/2, respectively. The optical band gap (Eopt), Urbach energy and refractive index were observed to decrease, increase and increase, respectively, to the addition of vanadium. Under 800 nm excitation, three emission bands were observed at 516, 580 and 673 nm, which are represented by 2H11/2–4I15/2, 4S3/2–4I15/2 and 4F15/2–4I15/2, respectively. The excellent features of achieved results suggest that our findings may provide useful information toward the development of functional glasses.

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Green Emission of Tellurite Based Glass Containing Erbium Oxide Nanoparticles

Cited by 16 publications

References 32 publications

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

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

Optimum Lasing Cavity for Erbium Doped Zinc Tellurite Glass Rods Embedded with Ag Nanoparticles

Effects of Vanadium on the Structural and Optical Properties of Borate Glasses Containing Er3+ and Silver Nanoparticles

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