Lithium-aluminum-zinc phosphate glasses activated with Sm3+, Sm3+/Eu3+ and Sm3+/Tb3+ for reddish-orange and white light generation

Huerta, E.F.; Soriano-Romero, O.; Meza-Rocha, A.N.; Bordignon, S.; Speghini, Adolfo; Caldiño, U.

doi:10.1016/j.jallcom.2020.156332

Cited by 37 publications

(10 citation statements)

References 31 publications

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“…The Sm 3? excitation spectrum in the overlap region was taken from that previously reported [23] Fig. 8 Dy 3?…”

Section: Lazdysm Glassmentioning

confidence: 99%

“…excitation and Sm 3? emission spectra in the overlap region were taken from the ones previously reported [20,23] and q a ¼ 1.4 Â 10 20 ions/cm 3 (Eu 3? activator ion concentration), is smaller than the R Ave interaction distance among Sm 3?…”

Section: Lazdysmeu Glassmentioning

confidence: 99%

“…Recently, our group has reported that Li 2 O-Al 2 O 3 -ZnO-P 2 O 5 glasses activated with RE 3? ions can be interesting luminescent materials for application in W-LEDs, since the glasses are transparent in the NUV spectral region with the combination of lithium and aluminum, and melt at low temperature and exhibit long chemical durability with the incorporation of a high fraction of ZnO and a small fraction of Al 2 O 3 [20][21][22][23] could be a good candidate to emit laser yellow light under 348 nm excitation, and when it is co-activated with Sm 3? and Sm 3?…”

Section: Introductionmentioning

confidence: 99%

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Li2O–Al2O3–ZnO–P2O5:Dy3+/Sm3+/Eu3+ glasses for solid-state yellow laser and color tunable phosphor applications

Gálvez-Sandoval

González-Suárez

Meza-Rocha

et al. 2021

J Mater Sci: Mater Electron

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Laser and optical properties (absorbance, excitation/emission and decay time data) of Dy 3? , Dy 3? /Sm 3? , Dy 3? /Sm 3? /Eu 3? -doped Li 2 O-Al 2 O 3 -ZnO-P 2 O 5 glasses are investigated. Laser spectroscopic parameters of the dysprosium yellow emission show potentialities of the luminescent glass as yellow laser medium under excitation at 348 nm. The Dy 3? /Sm 3? -activated glass tonality can be shifted from neutral white of 4559 K under 350 nm excitation to yellowish-orange of 2033 K (85.3% color purity) upon 372 nm excitation. A shortening of the dysprosium 4 F 9/2 level lifetime revealed that Sm 3? can be sensitized by Dy 3? by means of a non-radiative energy transfer that could be occurring into Dy 3? -Sm 3? clusters with an efficiency of 0.13. The Dy 3? /Sm 3? /Eu 3? -activated glass tonality can be shifted from warm white of 3387 K under 350 nm excitation to reddish-orange of 1638 K (92.1% color purity) upon 372 nm excitation. From lifetime data of the Dy 3? ion 4 F 9/2 and Sm 3? ion 4 G 5/2 levels is inferred that non-radiative energy transfers from dysprosium to europium and/ or samarium and from samarium to europium could be occurring into Dy 3? -Sm 3? -Eu 3? clusters with energy transfer efficiencies of 0.22 and 0.41, respectively.

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“…The Sm 3? excitation spectrum in the overlap region was taken from that previously reported [23] Fig. 8 Dy 3?…”

Section: Lazdysm Glassmentioning

confidence: 99%

Section: Lazdysmeu Glassmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Li2O–Al2O3–ZnO–P2O5:Dy3+/Sm3+/Eu3+ glasses for solid-state yellow laser and color tunable phosphor applications

Gálvez-Sandoval

González-Suárez

Meza-Rocha

et al. 2021

J Mater Sci: Mater Electron

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“…16,17 High light transmittance and optical haze materials prepared from CNFs through nanosize adjustment or MOF modification can realize softened white light emission and improve luminous quality. 18,19 Thus, here, they are developing CNF-based phosphors, instead of inorganic phosphors, with color-tuning, photo-switching, and white light-emitting properties having potential application in anti-counterfeiting and white light-emitting diodes (WLEDs).…”

Section: ■ Introductionmentioning

confidence: 99%

“…In fact, tCNF in cellulose nanopaper can absorb a certain amount of 254 nm light and might serve as an auxiliary ligand for controlling energy transfer processes, thus achieving color-tuning or photo-switching properties under 254 nm excitation. White light-emitting phosphors are rapidly becoming more popular in the lighting industry or flat panel displays. , High light transmittance and optical haze materials prepared from CNFs through nanosize adjustment or MOF modification can realize softened white light emission and improve luminous quality. , Thus, here, they are developing CNF-based phosphors, instead of inorganic phosphors, with color-tuning, photo-switching, and white light-emitting properties having potential application in anti-counterfeiting and white light-emitting diodes (WLEDs).…”

Section: Introductionmentioning

confidence: 99%

Transparent and Hazy Eu_xTb_1–x-Nanopaper with Color-Tuning, Photo-Switching, and White Light-Emitting Properties for Anti-counterfeiting and Light-Softened WLEDs

Zhang

Yao

et al. 2021

ACS Sustainable Chem. Eng.

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Lanthanide (Ln) metal–organic frameworks (Ln-MOFs) have attracted attention in anti-counterfeiting and white light-emitting diodes (WLEDs) due to their high quantum efficiency, long lifetimes, and characteristic linear spectrum. However, Ln-MOFs have some disadvantages, such as harsh luminescence modulation, low transparency, and poor film formation. In this study, Ln-MOF (Ln = Eu and/or Tb)-modified TEMPO-oxidized cellulose nanofibrils were employed for preparing transparent nanopapers and luminescence modulation. These luminescent nanopapers achieved an excellent light emission color tuning from green, yellow, and red under 365 nm excitation, while 254 nm radiation on these nanopapers only emitted characteristic pink light. Thus, the luminescent nanopapers combined color-tuning and photo-switching properties through the control of Eu3+/Tb3+ molar ratio and excitation wavelength (λEx at 365 and 254 nm), respectively, which greatly improved them for anti-counterfeiting applications. In addition, Ln-MOFs endowed these nanopapers with excellent optical haze (>90%), such that softening of white light from WLEDs was realized in 254 nm-driven UV-LED chips, corresponding white light with good color quality [Commission International de I’Eclairage coordinates, correlated color temperature, and color-rendering index of (0.34, 0.36), 5536 K and 86, respectively].

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Orange red Ca9Sc(PO4)7: Sm3+ phosphor with excellent thermal stability for solid state lighting

Wei,

Sun,

Ran

et al. 2024

Appl. Phys. A

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Lithium-aluminum-zinc phosphate glasses activated with Sm3+, Sm3+/Eu3+ and Sm3+/Tb3+ for reddish-orange and white light generation

Cited by 37 publications

References 31 publications

Li2O–Al2O3–ZnO–P2O5:Dy3+/Sm3+/Eu3+ glasses for solid-state yellow laser and color tunable phosphor applications

Li2O–Al2O3–ZnO–P2O5:Dy3+/Sm3+/Eu3+ glasses for solid-state yellow laser and color tunable phosphor applications

Transparent and Hazy Eu_xTb_1–x-Nanopaper with Color-Tuning, Photo-Switching, and White Light-Emitting Properties for Anti-counterfeiting and Light-Softened WLEDs

Orange red Ca9Sc(PO4)7: Sm3+ phosphor with excellent thermal stability for solid state lighting

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Lithium-aluminum-zinc phosphate glasses activated with Sm3+, Sm3+/Eu3+ and Sm3+/Tb3+ for reddish-orange and white light generation

Cited by 37 publications

References 31 publications

Li2O–Al2O3–ZnO–P2O5:Dy3+/Sm3+/Eu3+ glasses for solid-state yellow laser and color tunable phosphor applications

Li2O–Al2O3–ZnO–P2O5:Dy3+/Sm3+/Eu3+ glasses for solid-state yellow laser and color tunable phosphor applications

Transparent and Hazy EuxTb1–x-Nanopaper with Color-Tuning, Photo-Switching, and White Light-Emitting Properties for Anti-counterfeiting and Light-Softened WLEDs

Orange red Ca9Sc(PO4)7: Sm3+ phosphor with excellent thermal stability for solid state lighting

Contact Info

Product

Resources

About

Transparent and Hazy Eu_xTb_1–x-Nanopaper with Color-Tuning, Photo-Switching, and White Light-Emitting Properties for Anti-counterfeiting and Light-Softened WLEDs