Phonon sideband analysis, structural and spectroscopic properties of Eu3+ ions embedded SiO2–B2O3– CaF2– NaF– Na2O glasses

Rajesh, M.; Sushma, N. John; Devarajulu, G.; Raju, B. Deva Prasad

doi:10.1016/j.optmat.2020.110038

Cited by 26 publications

(10 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our studies indicate that the phonon energy of the glass host is reduced from 790 cm −1 (Ge-Eu) to 765 cm −1 with the presence of TiO 2 (TiGe-Eu). From phonon sideband measurements [40][41][42], the electron-phonon coupling strength g can be also estimated, which is due to the intensity ratio of the PSB ( I PSB dν) to the PET ( I PET dν), respectively. The results are given in Table 2.…”

Section: Titanate-germanate Glasses Doped With Europium Ionsmentioning

confidence: 99%

Novel Multicomponent Titanate-Germanate Glasses: Synthesis, Structure, Properties, Transition Metal, and Rare Earth Doping

et al. 2020

View full text Add to dashboard Cite

Novel multicomponent titanate-germanate glasses singly doped with transition metal (Cr3+) and rare earth ions (Eu3+) were synthesized and the glass transition temperatures and thermal stability parameters were determined using DSC measurements. X-ray diffraction analysis confirmed fully amorphous nature of the received samples. Their structural and optical properties were compared with germanate glasses without TiO2. Correlation between local structure and optical properties in titanate-germanate glasses is well evidenced by FT-IR, Raman, EPR, and luminescence spectroscopy. In particular, luminescence spectra and their decays are examined for glass samples, where GeO2 was partially substituted by TiO2.

show abstract

Section: Titanate-germanate Glasses Doped With Europium Ionsmentioning

confidence: 99%

Novel Multicomponent Titanate-Germanate Glasses: Synthesis, Structure, Properties, Transition Metal, and Rare Earth Doping

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In 430-470 nm spectral range, two important bands of europium ions are located. They are assigned to pure electronic transition (PET) near 464 nm ( 7 F0 → 5 D2 transition) and well-known in the literature transition dependent on the host (observed usually in the ranges 440-460 nm), referred as phonon sideband PSB [43][44][45]. The phonon energy is difference between the positions of these bands (PSB-PET).…”

Section: Phonon Sideband Analysismentioning

confidence: 96%

Phonon Sideband Analysis and Near-Infrared Emission in Heavy Metal Oxide Glasses

et al. 2020

View full text Add to dashboard Cite

In this work, spectroscopic properties of europium and erbium ions in heavy metal oxide glasses have been studied. The phonon energy of the glass host was determined based on Eu3+ excitation spectra measurements. Near-IR emission spectra at 1550 nm related to 4I13/2 → 4I15/2 transition of erbium in heavy metal glasses were examined with special regards to luminescence bandwidth and measured lifetime. In particular, correlation between phonon energy and the measured lifetime 4I13/2 (Er3+) was proposed. The luminescence lifetime for the 4I13/2 upper laser state of erbium decreases with increasing phonon energy in glass matrices. Completely different results were obtained glass samples with europium ions, where the 5D0 lifetime increases with increasing phonon energy. Our investigations suggest that the values of measured 5D0 lifetime equal to radiative lifetimes for all heavy metal oxide glasses.

show abstract

“…7 F 2 , 7 F 4 and 7 F 0 of Eu 3+ ion-doped PBNS glass and related equations [28,29] were used to evaluate the JO intensity parameters. The parameters Ω 2 and Ω 4 were calculated in the current work and the values are presented in Table 3 [13,[30][31][32][33][34][35][36] ; these values were compared with other reported glass. As the transition 5 D 0 !…”

Section: Ft-tr Spectra Analysismentioning

confidence: 99%

“…Here we observed that, with increasing Eu 3+ ions concentration, the intensity of the emission peak (16.54 Å), and PBNSEu20 (14.23 Å). [30] 3 ), stimulated emission cross-section (σ emi Â 10 À22 cm 2 ), and experimental branching ratios (β R ) for 5 D 0 ! 7 F J (J = 0,1,2,3,4 ) PBNSEu20 glass electrons in the 7 F 0 ground state absorb sufficient energy to be excited to the 5 L 6 level, which drops to the 5 D 0 level using the nonradiative (NR) relaxation channel and then radiates to the lowest energy levels 7 F J (where J = 0, 1, 2, 3 and 4), causing the emissions in the visible region.…”

Section: Excitation and Emission Analysismentioning

confidence: 99%

Optical, emission, and excitation dynamics of Eu³⁺‐doped bismuth‐based phosphate glass for visible display laser applications

et al. 2022

Self Cite

View full text Add to dashboard Cite

Eu3+‐doped‐bismuth‐based phosphate glasses with chemical equation (60 − x)P2O5–20Bi2O3−10Na2CO3–10SrF2–xEu2O3 (PBNSEu), (where x = 0, 0.1, 0.5, 1.0, 1.5 and 2 mol%) were fabricated using the melt‐quenching method. Obtain X‐ray diffraction (XRD), energy‐dispersive X‐ray (EDAX), and Fourier transform infrared (FTIR) spectra were used to characterize the structure of the prepared PBNSEu glass. The J–O (Judd–Ofelt) intensity parameters (Ω2, Ω4) were estimated using photoluminescence emission spectra. When excited with a xenon lamp at λexc = 394 nm, the most intense red‐emission transition occurred at ~612 nm (5D0→7F2). J–O intensity parameters were used to calculate radiative properties, whereas the radiative branching ratio (βR), radiative transition probability (AR), radiative lifetime (τR), and total radiative transition rate (Aτ) were calculated for the transitions 5D0→7FJ (where J = 0–4) and were obtained in the emission spectra for europium ion‐doped in the current glass. Using the CIE1931 chromaticity coordinates axes, the colours of various concentrations of Eu3+ ion‐doped PBNS glass were evaluated using the emission spectra. Temperature‐dependent luminescence spectra were recorded for the optimized PBNSEu20 glass to calculate the activation energy. These results strongly suggested red components in w‐LEDs and visible display laser applications.

show abstract

Phonon sideband analysis, structural and spectroscopic properties of Eu3+ ions embedded SiO2–B2O3– CaF2– NaF– Na2O glasses

Cited by 26 publications

References 41 publications

Novel Multicomponent Titanate-Germanate Glasses: Synthesis, Structure, Properties, Transition Metal, and Rare Earth Doping

Novel Multicomponent Titanate-Germanate Glasses: Synthesis, Structure, Properties, Transition Metal, and Rare Earth Doping

Phonon Sideband Analysis and Near-Infrared Emission in Heavy Metal Oxide Glasses

Optical, emission, and excitation dynamics of Eu³⁺‐doped bismuth‐based phosphate glass for visible display laser applications

Contact Info

Product

Resources

About

Phonon sideband analysis, structural and spectroscopic properties of Eu3+ ions embedded SiO2–B2O3– CaF2– NaF– Na2O glasses

Cited by 26 publications

References 41 publications

Novel Multicomponent Titanate-Germanate Glasses: Synthesis, Structure, Properties, Transition Metal, and Rare Earth Doping

Novel Multicomponent Titanate-Germanate Glasses: Synthesis, Structure, Properties, Transition Metal, and Rare Earth Doping

Phonon Sideband Analysis and Near-Infrared Emission in Heavy Metal Oxide Glasses

Optical, emission, and excitation dynamics of Eu3+‐doped bismuth‐based phosphate glass for visible display laser applications

Contact Info

Product

Resources

About

Optical, emission, and excitation dynamics of Eu³⁺‐doped bismuth‐based phosphate glass for visible display laser applications