Structural and luminescence study of Dy3+ doped phosphate glasses for solid state lighting applications

Shoaib, Mohammed; Rajaramakrishna, R.; Rooh, Gul; Chanthima, N.; Kim, H.J.; Saiyasombat, Chatree; Botta, Raju; Kothan, S.; Kaewkhao, J.

doi:10.1016/j.optmat.2020.110322

Cited by 27 publications

(9 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All glasses show a strong emission at ≈571 nm which corresponds to the 4 F 9/2 ➔ 6 H 13/2 transition. Three weaker emissions are centered around ≈480, 662, and 753 nm and can be assigned to the 4 F 9/2 ➔ 6 H 15/2 , 4 F 9/2 ➔ 6 H 11/2 , and 4 F 9/2 ➔ 6 H 9/2 transitions 33,34 . The emission intensity of the most intense peak is highest for the Sr 2+ and Ca 2+ containing glass and smallest for the Ba 2+ glass.…”

Section: Resultsmentioning

confidence: 94%

Structure and fluorescence properties of Dy‐doped alkaline‐earth borophosphate glasses

Griebenow

Muñoz

Tagiara

et al. 2021

Int J of Appl Glass Sci

View full text Add to dashboard Cite

Dysprosium doped borophosphate glasses, containing the divalent cations Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ and Zn 2+ , are prepared by the melt-quenching technique. The structure of the glasses is investigated by Raman, infrared and Nuclear Magnetic Resonance spectroscopies and the fluorescence properties are determined. The Dy 3+ emission lifetime increases with an increasing ionic field strength and its maximum is observed in the Mg 2+ and Zn 2+ containing glasses. This result can be explained by the stronger M-O bonding which causes a rearrangement of the borophosphate network and creating a local Dy 3+ environment of comparably low symmetry. This is in agreement with the Raman spectra and the evolution of the molar volume. The effect of the B/P variation on the emission properties of Dy 3+ is investigated in a second series of glasses where the emission lifetime is found maximum at 10 mol% B 2 O 3 .

show abstract

Section: Resultsmentioning

confidence: 94%

Structure and fluorescence properties of Dy‐doped alkaline‐earth borophosphate glasses

Griebenow

Muñoz

Tagiara

et al. 2021

Int J of Appl Glass Sci

View full text Add to dashboard Cite

show abstract

“…Regardless, there is clear evidence presented herein and throughout the literature that the radioluminescence sensitivity to dopant concentration is activator-and host-specific. 13,15,44 As such, it is imperative to tailor individual compositions to their desired application.…”

Section: Sqmentioning

confidence: 99%

“…These activators, which are typically other trivalent lanthanide ions, occupy the RE 3+ site within the fluoride host’s lattice, minimizing potential defects and allowing for the radioluminescence phenomenon. Lanthanide ions reported to have relatively efficient radioluminescence capabilities include Pr 3+ , Sm 3+ , Eu 3+ , Tb 3+ , and Dy 3+ , which emit in the UV, visible, and NIR regions. − …”

Section: Introductionmentioning

confidence: 99%

Investigating the Fundamental Material Properties That Influence the Radioluminescence of Lanthanide-Doped Nanoparticles

et al. 2022

View full text Add to dashboard Cite

The rapid development of radioluminescent nanomaterials has left uncertainties in how their properties compare to bulk materials or other luminescent nanoparticles. The effects of material density and effective atomic number, activator concentration, co-doped sensitization, and core/ shell architectures were examined, with a focus on LiLuF 4 nanoparticles doped with Eu 3+ . Varying material density and effective atomic number were found to affect the exciton recombination efficiency and subsequent excitation of activator ions. Given the indirect excitation processes in radioluminescence, we observed that the dependence on dopant concentration is highly specific to the choice of the activator ion and host composition. Strategies to enhance the radioluminescence efficiency were explored through co-doping with a sensitizer ion or core/shell architectures. Demonstrated herein, co-doping is a viable strategy to improve radioluminescence; however, the effect is highly dependent on the sensitizer−activator ion combination, as well as the population efficiency of the sensitizer. Core/shell structures were effective in improving the efficiency of individual activator ions in the lattice; however, the enhancement may not compensate for the addition of nonluminescent shell material. The results provide insight on the development of radioluminescent nanoparticles and their relationship to the properties that govern other luminescence processes.

show abstract

“…Rare-earth ions-doped luminescent materials have wide range of applications in which white light emitting diodes, solar cells, lasers, infrared to visible up-converters and optical communications. Oxide glasses are the most stable host matrices for practical applications due to their high chemical durability and thermal stability [1][2][3][4][5][6][7][8].Among these hosts, the borophosphate system is attractive due to its superior physical, structural and optical properties compared to pure phosphate or borate system [9][10][11][12][13].The low nonlinear dispersion of the highly rare-earth doped phosphate glasses enables their use in high power applications. Modification of phosphate glass with ZnO had improved glass durability while maintaining low glass transition temperature.…”

Section: Introductionmentioning

confidence: 99%

Spectral and Transmittance Properties of Er3+ Doped Zinc Lithium Lead Calcium Borophosphate Glasses

Meena¹

2021

IJRASET

View full text Add to dashboard Cite

Zinc lithium lead calcium borophosphate glasses containing Er3+ in (40- x):P2O5:10ZnO:10Li2O:10PbO:10CaO:20B2O3:xEr2O3 (where x=1, 1.5,2 mol %) have been prepared by melt-quenching method. The amorphous nature of the glasses was confirmed by x-ray diffraction studies. Optical absorption, Excitation, fluorescence and Transmittance spectra were recorded at room temperature for all glass samples. Judd-Ofelt intensity parameters Ωλ (λ=2, 4, 6) are evaluated from the intensities of various absorption bands of optical absorption spectra. Using these intensity parameters various radiative properties like spontaneous emission probability, branching ratio, radiative life time and stimulated emission cross–section of various emission lines have been evaluated. Keywords: ZLLCBP Glasses, Optical Properties, Judd-OfeltTheory, Transmittance Properties.

show abstract

Structural and luminescence study of Dy3+ doped phosphate glasses for solid state lighting applications

Cited by 27 publications

References 50 publications

Structure and fluorescence properties of Dy‐doped alkaline‐earth borophosphate glasses

Structure and fluorescence properties of Dy‐doped alkaline‐earth borophosphate glasses

Investigating the Fundamental Material Properties That Influence the Radioluminescence of Lanthanide-Doped Nanoparticles

Spectral and Transmittance Properties of Er3+ Doped Zinc Lithium Lead Calcium Borophosphate Glasses

Contact Info

Product

Resources

About