Synthesis and luminescence properties of the red phosphor CaZrO3:Eu3+ for white light-emitting diode application

• Authors: Junli Huang , Liya Zhou , Yuwei Lan , Fuzhong Gong , Qunliang Li , Jianhua Sun
• Languages of publication: EN

Abstracts

EN

Eu3+-doped CaZrO3 phosphor with perovskite-type structure was synthesized by the high temperature solid-state method. The samples were characterized by X-ray diffraction, scanning electron microscopy, fluorescence spectrophotometer and UV-vis spectrophotometer, respectively. XRD analysis showed that the formation of CaZrO3 was at the calcinations temperature of 1400°C. The average diameter of CaZrO3 with 4 mol% doped-Eu3+ was 2µm. The PL spectra demonstrated that CaZrO3:Eu3+ phosphor could be excited effectively in the near ultraviolet light region (397 nm) and emitted strong red-emission lines at 616 nm corresponding to the forced electric dipole 5
D
0 → 7
F
2 transitions of Eu3+. Meanwhile, the light-emitting diode was fabricated with the Ca0.96ZrO3:Eu0.043+ phosphor, which can efficiently absorb ∼ 400 nm irradiation and emit red light. Therefore Ca0.96ZrO3:Eu0.043+ may have applications for a near ultraviolet InGaN chip-based white light-emitting diode.

Keywords

EN

phosphor; luminescence; light-emitting diode

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2011
• Volume: 9
• Issue: 4
• Pages: 975-979

Dates

published

1 - 8 - 2011

online

30 - 4 - 2011

Contributors

author

Junli Huang

author

Liya Zhou

author

Yuwei Lan

author

Fuzhong Gong

author

Qunliang Li

author

Jianhua Sun

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Identifiers

DOI

10.2478/s11534-010-0132-7