Spectral characterisation of Sm3+ ions doped Oxy-fluoroborate glasses for visible orange luminescent applications

Mahamuda, Sk.; Swapna, K.; Venkateswarlu, M.; Rao, A.S.; Shakya, Suman; Prakash, G. Vijaya

doi:10.1016/j.jlumin.2014.05.017

Cited by 130 publications

(22 citation statements)

References 80 publications

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“…[2]. The radiative lifetimes go down from 2465.54 to 1309.07 μs with the increasing of Sm 3+ ion concentration from 0.2 to 1.0 mol.%, and then go up to 4480.89 μs when the concentration of Sm 3+ ions reach 2.0 mol.%, which is similar to that of Sm 3+ -doped oxyfluoroborate glasses [32]. It is clear that the 4 G 5/2 → 6 H 7/2 transition, the orange-red radiative transition, was strengthened due to the increasing of doped Sm 3+ ion concentration in the crystal.…”

Section: Resultsmentioning

confidence: 73%

Temperature-Dependent and Threshold Behavior of Sm3+ Ions on Fluorescence Properties of Lithium Niobate Single Crystals

et al. 2018

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Temperature-dependent and threshold behavior of Sm3+ ions on fluorescence properties of lithium niobate (LiNbO3, LN) single crystals were systematically investigated. The test materials, congruent LiNbO3 single crystals (Sm:LN), with various concentrations of doped Sm3+ ions from 0.2 to 2.0 mol.%, were grown using the Czochralski technique. Absorption spectra were obtained at room temperature, and photoluminescence spectra were measured at various temperatures in the range from 73 K to 423 K. Judd–Ofelt theory was applied to calculate the intensity parameters Ωt (t = 2, 4, 6) for 1.0 mol.% Sm3+-doped LiNbO3, as well as the radiative transition rate, Ar, branching ratio, β, and radiative lifetime, τr, of the fluorescent 4G5/2 level. Under 409 nm laser excitation, the photoluminescence spectra of the visible fluorescence of Sm3+ mainly contains 568, 610, and 651 nm emission spectra, corresponding to the energy level transitions of 4G5/2→6H5/2, 4G5/2→6H7/2, and 4G5/2→6H9/2, respectively. The concentration of Sm3+ ions has great impact on the fluorescence intensity. The luminescence intensity of Sm (1.0 mol.%):LN is about ten times as against Sm (0.2 mol.%):LN at 610 nm. The intensity of the fluorescence spectra were found to be highly depend on temperature, as well as the concentration of Sm3+ ions in LiNbO3 single crystals, as predicted; however, the lifetime changed little with the temperature, indicating that the temperature has little effect on it, in Sm:LN single crystals. Sm:LN single crystals, with orange-red emission spectra, can be used as the active material in new light sources, fluorescent display devices, UV-sensors, and visible lasers.

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Section: Resultsmentioning

confidence: 73%

Temperature-Dependent and Threshold Behavior of Sm3+ Ions on Fluorescence Properties of Lithium Niobate Single Crystals

et al. 2018

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“…6 H 9/2 (647 nm) is purely electric dipole behavior with DJ = ±2 displaying moderate intensity and 4 G 5/2 ? 6 H 11/2 (711 nm) is forbidden transition with DJ = ±3 showing feeble intensity [12,13,19]. Fig.…”

Section: Optical Absorption and Photoluminescence Spectra Of Tb 3+ : mentioning

confidence: 92%

Energy transfer based emission analysis of (Tb3+, Sm3+): Lithium zinc phosphate glasses

Reddy

Naresh

Ramaraghavulu

et al. 2015

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…Such experimental oscillator strengths can be measured by taking the integrated areas under the absorption peaks of the absorption spectrum using the following expression [24][25][26]:…”

Section: Analysis Of Absorption Spectrum -Intensity Parametersmentioning

confidence: 99%

Spectroscopic properties of Sm3+-doped oxy-fluoride powders with various Sm3+ concentration and sintering temperature

et al. 2015

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Spectral characterisation of Sm3+ ions doped Oxy-fluoroborate glasses for visible orange luminescent applications

Cited by 130 publications

References 80 publications

Temperature-Dependent and Threshold Behavior of Sm3+ Ions on Fluorescence Properties of Lithium Niobate Single Crystals

Temperature-Dependent and Threshold Behavior of Sm3+ Ions on Fluorescence Properties of Lithium Niobate Single Crystals

Energy transfer based emission analysis of (Tb3+, Sm3+): Lithium zinc phosphate glasses

Spectroscopic properties of Sm3+-doped oxy-fluoride powders with various Sm3+ concentration and sintering temperature

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