A Novel Red Phosphor (Sr_0.68Ba_0.3)₄Al₂O₇: Eu³⁺ for UV Light-Emitting Diode Application

Abstract:

Study on phosphor materials is the key for the development of solid-state lighting, especially finding alternative red phosphor for white light emitting diodes (LEDs). In this paper, a novel Eu³⁺-doped (Sr_0.68Ba_0.3)₄Al₂O₇ red phosphor was synthesized by solid-state reaction, and its photoluminescent property was measured by fluorescence spectrophotometer. The effect of Eu³⁺ doping concentration on photoluminescent property of (Sr_0.68Ba_0.3)₄Al₂O₇ was investigated, and the optimum concentration of Eu³⁺ was found to be 4mol%. XRD patterns indicated that all the peaks of (Sr_0.68Ba_0.3)₄Al₂O₇:Eu³⁺ could be attributed to the Sr₄Al₂O₇ phase and the luminescence intensity increased with the increase of temperature.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 708-711
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.708
• Online since: July 2012
• Authors: Su Li Wu, Lian Li, Shu Fen Zhang
• Keywords: Aluminate, Red Phosphor, UV Light-Emitting

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