Analysis of emission of Eu3+ and Dy3+doped Magnesium Boro-Tellurite (MBT) ceramics

• Autorzy: Bohari N. Z. I. , Hussin R. , Ibrahim Z. , Lintang H. O.

Identyfikatory

DOI

10.1515/msp-2015-0018

• Języki publikacji: EN

Abstrakty

EN

Rare earth (RE) ions play an important role in the improvement of the optical properties of ceramics. Rare-earth ceramics are commonly used in display panels, fluorescent lamps and lasers. The luminescence properties of Magnesium Boro-Tellurite(MBT) Eu³⁺ and Dy³⁺ doped ceramics have not been reported before. Therefore, the aim of this paper is to determine the effect of different compositions on the luminescence properties of the MBT material. A series of xTeO₂-(70-x)B₂O₃-30MgOceramics with 10 ≤ x ≤ 40 mol % doped with 1 mol % of Eu³⁺ and Dy³⁺ ions was prepared via the solid-state reaction method. The influence of various compositions on the crystalline phase and photoluminescence properties of the samples were investigated by X-ray diffraction (XRD) and luminescence spectroscopy. The crystalline phases obtained in this study are M_g3(BO₃)₂, M_gB₄O₇, M_g2B₂O₅, M_g (Te₂O₅) and M_gTe₃O₆. It was stated that the crystalline phases have not changed as a result of doping with Eu³⁺ and Dy³⁺ ions. The emission spectra of Eu³⁺: MBT ceramics showed strong red emission at 612 nm due to the transition of ⁵ D₀ → ⁷ F₂ and meanwhile, the Dy³⁺: MBT ceramics showed a blue emission at 480 nm due to ⁴ F_9/2→⁶H_15/2 transition and yellow emission at 576 nm due to ⁴ F_9/2→⁶H_13/2 transition. Both the rare-earth doped phosphors showed bright emission.

Słowa kluczowe

EN

Magnesium Boro-Tellurite; MBT; luminescence; ceramics

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2015
• Tom: Vol. 33, No. 1
• Strony: 122--125
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Bohari N. Z. I.

• Phosphor Research Group, Department of Physics, Faculty of Science, Universiti Teknologi Malaysia,UTM Skudai, 81310, Johor Bahru, Malaysia

autor

Hussin R.

• Phosphor Research Group, Department of Physics, Faculty of Science, Universiti Teknologi Malaysia,UTM Skudai, 81310, Johor Bahru, Malaysia

autor

Ibrahim Z.

• Phosphor Research Group, Department of Physics, Faculty of Science, Universiti Teknologi Malaysia,UTM Skudai, 81310, Johor Bahru, Malaysia

autor

Lintang H. O.

• Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, UTM Skudai, 81310, Johor Bahru, Malaysia

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