Substrate temperature dependence of structure and optical properties of ZnTiO3:Er3+/Yb3+ thin films synthesized by pulsed laser deposition

Mofokeng, S.J.; Molefe, Fokotsa V.; Kroon, R.E.; Swart, H.C.; Mokoena, Teboho P.; Dhlamini, M.S.; Sithole, M.J.; Noto, L.L.

doi:10.1016/j.heliyon.2023.e16259

Cited by 4 publications

(1 citation statement)

References 55 publications

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“…The presence of Yb 3+ significantly enhances both the absorption and pumping efficiency, leading to an increase in luminescence intensity. This improvement can be attributed to the excitation of the energy level 4 I 11/12 of Er 3+ [6,23,24]. Yb 3+ only has two energy levels in which is advantageous to inhibit luminescence quenching from back energy transfer [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber

Razali,

Supardan,

Yunus

et al. 2024

J. Phys.: Conf. Ser.

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Er3+ has been gaining much interest due to the multiple emissions in both infrared and visible regions. Based on the previous study, SiO2-TiO2 have been proven to be an excellent host for Er3+. However, Er3+ exhibits a low absorption cross-section when doped into the silica-based host. Therefore, Yb3+ has been introduced into the matrix and acts as a sensitiser to increase the luminescence intensity. Er3+/Yb3+ co-doped 75SiO2-25TiO2 nanofiber with different Er3+/Yb3+ ratios were fabricated via the sol-gel electrospinning method. The FESEM result shows the diameter of the nanofibers in the range of 62 to 515 nm. The absence of any peak within the 3000-4000 cm-1 range in the FTIR spectra indicates the complete removal of the OH group. The XRD results imply that all samples were amorphous. The PL spectra showed strong green emission peaks, which were ascribed to 2H11/2 → 4I15/2 as well as red emission peaks attributed to 4F9/2 → 4I15/2 Er3+ transitions. The PL intensity was varied according to the Yb3+ concentration. The addition of Yb3+ was proven to aid the increment of PL intensity. Nevertheless, the PL intensity reduced when too high of Yb3+ concentration was used due to the concentration quenching effect.

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Section: Introductionmentioning

confidence: 99%

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber

Razali,

Supardan,

Yunus

et al. 2024

J. Phys.: Conf. Ser.

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ZnTiO3-nanoparticles effect on the structure, FTIR, and optical properties of SiO2 – B2O3 – Al2O3 glasses

Mohamed,

Saddeek,

Sedky

et al. 2024

Ceramics International

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Green upconversion luminescence of ZnO:Yb3+/Ho3+ nanophosphors prepared by various synthesis methods: Sol-gel and co-precipitation

Matakgane,

Mokoena,

Kroon

et al. 2024

Physica B: Condensed Matter

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Substrate temperature dependence of structure and optical properties of ZnTiO3:Er3+/Yb3+ thin films synthesized by pulsed laser deposition

Cited by 4 publications

References 55 publications

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber

ZnTiO3-nanoparticles effect on the structure, FTIR, and optical properties of SiO2 – B2O3 – Al2O3 glasses

Green upconversion luminescence of ZnO:Yb3+/Ho3+ nanophosphors prepared by various synthesis methods: Sol-gel and co-precipitation

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Substrate temperature dependence of structure and optical properties of ZnTiO3:Er3+/Yb3+ thin films synthesized by pulsed laser deposition

Cited by 4 publications

References 55 publications

Effect of Yb3+ concentration on the spectroscopic properties of Er3+/Yb3+ co-doped SiO2-TiO2 nanofiber

Effect of Yb3+ concentration on the spectroscopic properties of Er3+/Yb3+ co-doped SiO2-TiO2 nanofiber

ZnTiO3-nanoparticles effect on the structure, FTIR, and optical properties of SiO2 – B2O3 – Al2O3 glasses

Green upconversion luminescence of ZnO:Yb3+/Ho3+ nanophosphors prepared by various synthesis methods: Sol-gel and co-precipitation

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Product

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Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber