Tunable color emitting of Ba1-x-ySiO3:xEu,yBi3+ phosphors with the self-reduction of Eu3+ ions calcined in air

The SrLa 1Àx AlO 4 :xEu 3+ phosphors were obtained using one calcination of a precursor synthesized using a sol-gel method. When excited at 396 nm, this phosphor emits a red light mixed with several strong peaks centred at 596 nm, 616 nm and 625 nm, attributed to 5 D 0 ! 7 F 1, 2 transitions of Eu 3+ ions, respectively. The concentration quenching occurs at x = 1.5 mol% mol of SrLa 1Àx Eu x AlO 4 and the critical energy transfer distance is calculated to be 13.13 Å, the dipole-dipole interaction was found to play a role. In addition, the colour purity could be up to 97.5%. Simultaneously, the thermal stability of SrLaAlO 4 :Eu 3+ was measured and the thermal quenching was found at c. 275 C (T 0.5 ), the excitation energy was 0.19 eV. Current results demonstrate that SrLaAlO 4 :Eu 3+ could be a red component candidate for white light LEDs pumped by near-UV chips.

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A novel high-brightness and thermally-stable red phosphor Ca2GaNbO6: Eu3+ for WLEDs and anti-counterfeiting inks

Li,

Cui,

Guo

et al. 2024

Ceramics International

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Tunable color emitting of Ba1-x-ySiO3:xEu,yBi3+ phosphors with the self-reduction of Eu3+ ions calcined in air

Cited by 15 publications

References 47 publications

Enhanced effect of co-doping of Ln3+ on the luminescent properties of BaSiO3:Eu3+ red phosphors

Enhanced effect of co-doping of Ln3+ on the luminescent properties of BaSiO3:Eu3+ red phosphors

Fluorescence and crystal structure of SrLa_1−xAlO₄:xEu³⁺ phosphor synthesized using a sol–gel method

A novel high-brightness and thermally-stable red phosphor Ca2GaNbO6: Eu3+ for WLEDs and anti-counterfeiting inks

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Tunable color emitting of Ba1-x-ySiO3:xEu,yBi3+ phosphors with the self-reduction of Eu3+ ions calcined in air

Cited by 15 publications

References 47 publications

Enhanced effect of co-doping of Ln3+ on the luminescent properties of BaSiO3:Eu3+ red phosphors

Enhanced effect of co-doping of Ln3+ on the luminescent properties of BaSiO3:Eu3+ red phosphors

Fluorescence and crystal structure of SrLa1−xAlO4:xEu3+ phosphor synthesized using a sol–gel method

A novel high-brightness and thermally-stable red phosphor Ca2GaNbO6: Eu3+ for WLEDs and anti-counterfeiting inks

Contact Info

Product

Resources

About

Fluorescence and crystal structure of SrLa_1−xAlO₄:xEu³⁺ phosphor synthesized using a sol–gel method