Photoluminescence and cathode-luminescence of Eu3+-doped NaLnTiO4 (Ln = Gd and Y) phosphors

Niumiao Zhang; Chongfeng Guo; Heng Jing

doi:10.1039/c3ra40375k

Photoluminescence and cathode-luminescence of Eu³⁺-doped NaLnTiO₄ (Ln = Gd and Y) phosphors

Niumiao Zhang, Chongfeng Guo^*, Heng Jing

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

79 Citations (Scopus)

Abstract

Eu³⁺-activated layered perovskite ionic conductors NaYTiO ₄ and NaGdTiO₄ red-emitting phosphors were successfully synthesized by a modified sol-gel method for applications in field emission displays (FEDs) and ultraviolet-based light-emitting diodes (LEDs). The optimal compositions and parameters of synthesis were determined. The structure and luminescent properties were investigated by X-ray diffraction (XRD), photoluminescence excitation (PLE) and emission (PL) spectra. The cathode-luminescence (CL) spectra of phosphors as a function of accelerating voltage and filament current were also measured. The thermal stabilities and decay curves of phosphors were also investigated. The Eu³⁺-doped NaYTiO₄ phosphor offers higher brightness and thermal stability than Eu³⁺-doped NaGdTiO₄ in identical conditions. The former is the more suitable red-emitting phosphor candidate for LEDs and FEDs.

Original language	English
Pages (from-to)	7495-7502
Number of pages	8
Journal	RSC Advances
Volume	3
Issue number	20
DOIs	https://doi.org/10.1039/c3ra40375k
Publication status	Published - 28 May 2013

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abstract = "Eu3+-activated layered perovskite ionic conductors NaYTiO 4 and NaGdTiO4 red-emitting phosphors were successfully synthesized by a modified sol-gel method for applications in field emission displays (FEDs) and ultraviolet-based light-emitting diodes (LEDs). The optimal compositions and parameters of synthesis were determined. The structure and luminescent properties were investigated by X-ray diffraction (XRD), photoluminescence excitation (PLE) and emission (PL) spectra. The cathode-luminescence (CL) spectra of phosphors as a function of accelerating voltage and filament current were also measured. The thermal stabilities and decay curves of phosphors were also investigated. The Eu3+-doped NaYTiO4 phosphor offers higher brightness and thermal stability than Eu3+-doped NaGdTiO4 in identical conditions. The former is the more suitable red-emitting phosphor candidate for LEDs and FEDs.",

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T1 - Photoluminescence and cathode-luminescence of Eu3+-doped NaLnTiO4 (Ln = Gd and Y) phosphors

AU - Zhang, Niumiao

AU - Guo, Chongfeng

AU - Jing, Heng

PY - 2013/5/28

Y1 - 2013/5/28

N2 - Eu3+-activated layered perovskite ionic conductors NaYTiO 4 and NaGdTiO4 red-emitting phosphors were successfully synthesized by a modified sol-gel method for applications in field emission displays (FEDs) and ultraviolet-based light-emitting diodes (LEDs). The optimal compositions and parameters of synthesis were determined. The structure and luminescent properties were investigated by X-ray diffraction (XRD), photoluminescence excitation (PLE) and emission (PL) spectra. The cathode-luminescence (CL) spectra of phosphors as a function of accelerating voltage and filament current were also measured. The thermal stabilities and decay curves of phosphors were also investigated. The Eu3+-doped NaYTiO4 phosphor offers higher brightness and thermal stability than Eu3+-doped NaGdTiO4 in identical conditions. The former is the more suitable red-emitting phosphor candidate for LEDs and FEDs.

AB - Eu3+-activated layered perovskite ionic conductors NaYTiO 4 and NaGdTiO4 red-emitting phosphors were successfully synthesized by a modified sol-gel method for applications in field emission displays (FEDs) and ultraviolet-based light-emitting diodes (LEDs). The optimal compositions and parameters of synthesis were determined. The structure and luminescent properties were investigated by X-ray diffraction (XRD), photoluminescence excitation (PLE) and emission (PL) spectra. The cathode-luminescence (CL) spectra of phosphors as a function of accelerating voltage and filament current were also measured. The thermal stabilities and decay curves of phosphors were also investigated. The Eu3+-doped NaYTiO4 phosphor offers higher brightness and thermal stability than Eu3+-doped NaGdTiO4 in identical conditions. The former is the more suitable red-emitting phosphor candidate for LEDs and FEDs.

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Photoluminescence and cathode-luminescence of Eu³⁺-doped NaLnTiO₄ (Ln = Gd and Y) phosphors

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