Influenceof Sm2O3 and CaF2 Concentrationonthe Enhancement of Luminescence and Red Colour in Borosilicate Glass

Qiao, Yanjiang

doi:10.1080/0371750x.2021.1978866

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…Figure c is the PL spectra of Sm 2+ of 200 Gy X-irradiated CaF 2 :Sm 3+ nanocrystals as a function of the Sm 3+ concentration with a maximum at 0.1%. This indicates concentration quenching that led to a higher nonradiative deactivation rate instead of Sm 2+ luminescence …”

Section: Resultsmentioning

confidence: 98%

“…This indicates concentration quenching that led to a higher nonradiative deactivation rate instead of Sm 2+ luminescence. 52 The temperature dependence of the spectral hole in the Sm 2+ A 1g T 1u transition (a) was investigated by burning a hole with a fluence of 15.3 J cm −2 at 690.2 nm and 2 K and then the temperature (T) was raised to 25 K as shown in Figure 9a. The In eq 11, T DW is the Debye temperature and α ̅ is a coupling coefficient for the electron−phonon interaction.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm²⁺ in CaF₂:Sm³⁺ Nanocrystals

Rozaila,

Hutchison,

Riesen

2023

J. Phys. Chem. C

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We report photoluminescence properties as a function of temperature, Zeeman effects of 4f55d → 4f6 transitions, and persistent spectral hole-burning measurements in the 4f6 7F0 (A1g) → 4f55d (T1u) transition of Sm2+ generated by X-irradiation in CaF2:Sm3+ nanocrystals prepared via a coprecipitation method. In the absence of a magnetic field (2–293 K), the luminescence of the dominant electric dipole allowed 4f55d (A1u) → 4f6 7F1 (T1g) transition at 708.2 nm and the two weak transitions T1u → A1g and T1u → T1g at 690.2 and 703 nm, respectively, with some vibronic sidebands were observed. The Zeeman splitting of the Zeeman effect of the 7F1 level in a magnetic field of 9 T led to an observable, though nonresolved, splitting (5.68 ± 0.11 cm–1) into its M J = −1, 0, 1 components yielding a g-factor of 1.35 ± 0.02. The intensity of the symmetry-forbidden A1u → A1g -transition at 695.8 nm could be drastically increased by an external magnetic field above 3 T at 2 K, with a quadratic magnetic flux dependence. Spectral holes burned into the A1g → T1u transition displayed a Lorentzian line shape and first-order dispersive burning kinetics. The hole-burning rate decreased with an increase of the X-irradiation dose, while an increase was observed with an increase of the Sm concentration. The direct one-phonon relaxation between the T1u and A1u levels and the two-phonon Raman scattering process contributed to the hole width. Interestingly, a nonmonotonous temperature dependence was observed for the frequency shift. The hole was relatively stable with less than a 20% reduction in hole area after 1 h and thermal cycling to 25 K. The present results highlight the significance of the Sm3+ electron traps (type I) in spectral hole-burning of CaF2:Sm3+ nanocrystals.

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Section: Resultsmentioning

confidence: 98%

Section: ■ Results and Discussionmentioning

confidence: 99%

Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm²⁺ in CaF₂:Sm³⁺ Nanocrystals

Rozaila,

Hutchison,

Riesen

2023

J. Phys. Chem. C

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Strontium Oxide-Reinforced Borotellurite Glasses: Synthesis, Structure, and Optical Characteristics and γ-Ray and Neutron Attenuation Capability

Al-Ghamdi,

Alsaif,

Nabil

et al. 2024

J. Electron. Mater.

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Luminescence, energy transfer and tunable white emitting of borosilicate glass doubly doped with Tb/Sm or triply doped with Ce/Tb/Sm for white LEDs

Qiao

2022

Materials Science and Engineering: B

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Influenceof Sm₂O₃ and CaF₂ Concentrationonthe Enhancement of Luminescence and Red Colour in Borosilicate Glass

Cited by 5 publications

References 34 publications

Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm²⁺ in CaF₂:Sm³⁺ Nanocrystals

Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm²⁺ in CaF₂:Sm³⁺ Nanocrystals

Strontium Oxide-Reinforced Borotellurite Glasses: Synthesis, Structure, and Optical Characteristics and γ-Ray and Neutron Attenuation Capability

Luminescence, energy transfer and tunable white emitting of borosilicate glass doubly doped with Tb/Sm or triply doped with Ce/Tb/Sm for white LEDs

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Influenceof Sm2O3 and CaF2 Concentrationonthe Enhancement of Luminescence and Red Colour in Borosilicate Glass

Cited by 5 publications

References 34 publications

Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm2+ in CaF2:Sm3+ Nanocrystals

Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm2+ in CaF2:Sm3+ Nanocrystals

Strontium Oxide-Reinforced Borotellurite Glasses: Synthesis, Structure, and Optical Characteristics and γ-Ray and Neutron Attenuation Capability

Luminescence, energy transfer and tunable white emitting of borosilicate glass doubly doped with Tb/Sm or triply doped with Ce/Tb/Sm for white LEDs

Contact Info

Product

Resources

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Influenceof Sm₂O₃ and CaF₂ Concentrationonthe Enhancement of Luminescence and Red Colour in Borosilicate Glass

Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm²⁺ in CaF₂:Sm³⁺ Nanocrystals

Persistent Spectral Hole-Burning and Zeeman Effect of X-ray-Induced Sm²⁺ in CaF₂:Sm³⁺ Nanocrystals