Spectroscopic and dielectric studies of Sm3+ ions in lithium zinc borate glasses

Thomas, Sunil; Rasool, Shaik Nayab; Rathaiah, M.; Venkatramu, V.; Joseph, Cyriac; Unnikrishnan, N.V.

doi:10.1016/j.jnoncrysol.2013.05.022

Cited by 70 publications

(22 citation statements)

References 30 publications

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“…Thomas et al [16] explored the spectroscopic properties of Sm 3+ ions in lithium zinc borate glasses and further investigated the dielectric properties. Ahamed et al [1] ions have been investigated and reported by Raghava rao et al [18].…”

Section: Mmentioning

confidence: 99%

“…where, ν is the wave number (cm -1 ) of the transition from the ground state (ΨJ) to the excited state (Ψ'J'), h is the Plank's constant, J and J' is the total angular momentum of the ground state and excited state of the RE ion respectively, n is the refractive index, (n 2 +2) 2 /9n is the [16]. All the spectra of the rare earth ions arise from the 4f−4f intraconfiguration transitions within the shell which are forbidden by the parity selection rule of the electric dipole transitions.…”

Section: Oscillator Strengths and Judd-ofelt Analysismentioning

confidence: 99%

“…The correlated color temperature (CCT) has been calculated using the color coordinates employing the McCamy's approximate formula [9] CCT = −449n 3 +3525n 2 −6823n+5520.33 (16) where n = (x − x e )/(y −y e ) is the inverse slope line and x e = 0.332, y e = 0.186 is the epicentre.…”

Section: Cie Chromaticity Coordinatesmentioning

confidence: 99%

“…The IH model is valid when the energy transfer process between the donor and acceptor ion is appreciably faster than the energy diffusion between the donors. According to IH model, the emission intensity is expressed as [16],…”

Section: Decay Analysismentioning

confidence: 99%

See 3 more Smart Citations

Concentration dependent spectroscopic behavior of Sm3+ doped leadfluoro-borophosphate glasses for laser and LED applications

Vijayakumar

Marimuthu

Sudarsan

2015

Journal of Alloys and Compounds

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Section: Mmentioning

confidence: 99%

Section: Oscillator Strengths and Judd-ofelt Analysismentioning

confidence: 99%

Section: Cie Chromaticity Coordinatesmentioning

confidence: 99%

Section: Decay Analysismentioning

confidence: 99%

See 2 more Smart Citations

Concentration dependent spectroscopic behavior of Sm3+ doped leadfluoro-borophosphate glasses for laser and LED applications

Vijayakumar

Marimuthu

Sudarsan

2015

Journal of Alloys and Compounds

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“…The ac conductivity was determined from the dielectric parameters by the relation (15) where is the angular frequency of the electrical signal [40]. Figure 11 depicts the ac conductivity as a function of frequency at room temperature.…”

Section: Ac Conductivitymentioning

confidence: 99%

NIR emission studies and dielectric properties of Er3+-doped multicomponent tellurite glasses

Sajna

Thomas

Jayakrishnan

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Multicomponent tellurite glasses containing altered concentrations of Er 2 O 3 (ranging from 0 to 1 mol%) were prepared by the standard melt quenching technique. Investigations through energy dispersive X-ray spectroscopy (EDS), Raman scattering spectroscopy, FTIR spectroscopy, NIR emission studies and dielectric measurement techniques were done to probe their compositional, structural, spectroscopic and dielectric behaviour. The influence of erbium ion concentration on the infrared emission (~1.53 m) of these glasses and their respective lifetimes were measured. From the measured capacitance and dissipation factor, the relative permittivity, dielectric loss and the conductivity were computed; which furnish the dielectric nature of the multicomponent tellurite glasses that depend on the frequency of the applied LCR meter. Assuming the ideal Debye behaviour as substantiated by Cole-Cole plot, an examination of the real and imaginary parts of impedance is performed. The power-law and Cole-Cole parameters were resolved for all the glass samples. From the assessment of the NIR emission analysis and dielectric properties of the glass samples, it is manifested that the Er 3+ ion concentration has played a vital role in tuning the optical and dielectric properties and the 0.5 mol% Er 3+-doped glass is confirmed as the finest composition.

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Optical, Photo, and X‐Ray Luminescence Properties of Samarium Ions Doped with Borophosphate Glasses

Kiwsakunkran

Chanthima

Kim

et al. 2022

Physica Status Solidi (a)

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The optical, photo, and X-ray luminescence properties of Sm 3þ ion-doped Li 2 O-Al 2 O 3 -Gd 2 O 3 -B 2 O 3 -P 2 O 5 glasses are evaluated. The glasses are fabricated by the melt quenching technique. The absorption spectra exhibit the hypersensitive transitions 6 H 5/2 ! 6 P 3/2 and 6 H 5/2 ! 6 F 7/2 at the visible and near-infrared range respectively. The glasses display four major transitions characteristic of Sm 3þ ion for photoluminescence and X-ray luminescence, with the most intense one corresponding to the 4 G 5/2 ! 6 H 7/2 transition. The best emitting samarium concentration obtained by X-ray excitation is compared to BGO crystals. The integral scintillation efficiency of glass is determined by total area under all of peak spectrum. The results indicate the promising application of these glasses in scintillators and for X-ray sensing devices.

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Spectroscopic and dielectric studies of Sm3+ ions in lithium zinc borate glasses

Cited by 70 publications

References 30 publications

Concentration dependent spectroscopic behavior of Sm3+ doped leadfluoro-borophosphate glasses for laser and LED applications

Concentration dependent spectroscopic behavior of Sm3+ doped leadfluoro-borophosphate glasses for laser and LED applications

NIR emission studies and dielectric properties of Er3+-doped multicomponent tellurite glasses

Optical, Photo, and X‐Ray Luminescence Properties of Samarium Ions Doped with Borophosphate Glasses

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