Dy3+ ions doped single and mixed alkali fluoro tungsten tellurite glasses for LASER and white LED applications

Devi, Ch. B. Annapurna; Mahamuda, Sk.; Swapna, K.; Rao, A.S.; Prakash, G. Vijaya

doi:10.1016/j.optmat.2016.11.016

Cited by 68 publications

(2 citation statements)

References 49 publications

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“…The bonding type can be ionic or covalent in nature depending on negative or positive magnitude of δ, respectively. The overwhelming majority of previous studies reported that δ values have negative sign revealing the ionic bonding between Dy 3+ and surrounding ligands in the glass matrix [15,48,69,73,74,[78][79][80].…”

Section: Dy 3+ Singly-doped Glassesmentioning

confidence: 99%

Recent progress in lanthanide-doped luminescent glasses for solid-state lighting applications—a review

Erol

Vahedigharehchopogh

Kıbrıslı

et al. 2021

J. Phys.: Condens. Matter

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Nowadays, solid-state white light-emitting diodes (wLEDs) have attracted remarkable attention for applications in general lighting, displays and numerous electronical devices due to their eminent efficiency, longer lifetime and higher mechanical durability compared to traditional incandescent and fluorescent lights. In current commercial wLEDs, a combination of Y 3 Al 5 O 12 :Ce 3+ yellow phosphor with blue LED chip and epoxy resin is generally used to generate white light. However, there are some considerable frailties mostly originated from phosphor and resin such as, degradation upon heat, and moisture, inhomogeneous spectral distribution, and poor color rendering capability. Therefore, phosphor embedded glass-ceramics have been developed as a promising way to obtain durable solid-state lighting devices. However, in these methods, there is a greater risk of reactions between the phosphor material and the glass host. At this point, lanthanide-doped luminescent glasses have drawn great attention as a new generation phosphor and/or epoxy free white-light-emitting source owing to their favorable properties including high thermal and chemical stability, high transparency, and easy manufacturing process. This review article aims to comprehensively summarize the recent progress in singly (i.e., Dy 3+ , Eu 2+ ), doubly (i.e.

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Section: Dy 3+ Singly-doped Glassesmentioning

confidence: 99%

Recent progress in lanthanide-doped luminescent glasses for solid-state lighting applications—a review

Erol

Vahedigharehchopogh

Kıbrıslı

et al. 2021

J. Phys.: Condens. Matter

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“…SSL devices find many uses in varying areas of liquid crystal displays, cellular phone screen illumination, traffic signals, w‐LEDs, magneto‐optical devices, etc. [ 8,12–14 ] Furthermore, w‐LEDs are one of the researched areas in the field of SSL technology and the right step in the direction of a cleaner and greener environment. These w‐LEDs are more advantageous than the usual sources of light like the incandescent bulbs, tube lights, etc.…”

Section: Introductionmentioning

confidence: 99%

Thermally stable Sm³⁺‐doped alkali zinc alumino borosilicate (AZABS) glass for warm white light generation and w‐LED applications

et al. 2023

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Samarium ion (Sm3+)‐doped alkali zinc alumino borosilicate (AZABS) glass was synthesized via quick melt quench technique. Various spectroscopic studies like optical absorption, photoluminescence (PL) emission, PL excitation, temperature‐dependent PL and PL decay kinetics were performed on the as prepared glass system. Under 402 nm excitation, three sharp bands at wavelengths 563, 599 and 645 nm corresponding to transitions 4G5/2 → 6H5/2, 6H7/2 and 6H9/2, respectively, can be seen in the PL emission spectra. The 0.25 mol% Sm3+ glass has the highest intensity for these emissions. The lanthanide interaction in the glass matrix is dipole–dipole in nature as was proven from Dexter's analysis. The direct bandgap of 0.25 mol% Sm3+‐doped AZABS glass was calculated to be 2.88 eV. The lifetimes of the as prepared glass range from 1.93 ms for the lowest concentration of Sm3+ to 0.75 ms for the highest. From temperature dependent PL studies, the activation energy for 0.25 mol% Sm3+‐doped AZABS glass was found to be 0.19 eV which shows high thermal stability of this glass. We propose to utilize these Sm3+‐doped AZABS glasses for white‐light emitting diodes (w‐LEDs) and solid‐state lighting (SSL) applications.

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Structural and Luminescence Properties of Tellurite Glasses for Laser Applications

Prasad

Rao

2018

Tellurite Glass Smart Materials

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Dy3+ ions doped single and mixed alkali fluoro tungsten tellurite glasses for LASER and white LED applications

Cited by 68 publications

References 49 publications

Recent progress in lanthanide-doped luminescent glasses for solid-state lighting applications—a review

Recent progress in lanthanide-doped luminescent glasses for solid-state lighting applications—a review

Thermally stable Sm³⁺‐doped alkali zinc alumino borosilicate (AZABS) glass for warm white light generation and w‐LED applications

Structural and Luminescence Properties of Tellurite Glasses for Laser Applications

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Dy3+ ions doped single and mixed alkali fluoro tungsten tellurite glasses for LASER and white LED applications

Cited by 68 publications

References 49 publications

Recent progress in lanthanide-doped luminescent glasses for solid-state lighting applications—a review

Recent progress in lanthanide-doped luminescent glasses for solid-state lighting applications—a review

Thermally stable Sm3+‐doped alkali zinc alumino borosilicate (AZABS) glass for warm white light generation and w‐LED applications

Structural and Luminescence Properties of Tellurite Glasses for Laser Applications

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Product

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About

Thermally stable Sm³⁺‐doped alkali zinc alumino borosilicate (AZABS) glass for warm white light generation and w‐LED applications