Synthesis and luminescent properties of UV-excited thermal stable red-emitting phosphor Ba₃Lu(PO₄)₃: Eu³⁺ for NUV LED

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• 作者：Xinguo Zhang ; Jilin Zhang ; Menglian Gong
• 关键词：Luminescence ; Ba3Lu(PO4)3 ; Eu3+ ; Phosphor ; NUV LED
• 刊名：Optical Materials
• 出版年：February, 2014
• 年：2014
• 卷：36
• 期：4
• 页码：850-853
• 全文大小：1122 K

文摘

A series of Ba₃Lu(PO₄)₃: Eu³⁺ phosphors were synthesized by high-temperature solid-state method, and their UV-vis luminescent properties were investigated. The f-f transitions of Eu³⁺ in the host lattice were assigned and discussed. The excitation and emission spectra indicate that this phosphor can be excited by near ultraviolet (NUV) light, and exhibits strong red emission. The concentration quenching on Eu³⁺ emission and its mechanism were investigated. This phosphor shows a good thermal stability at high temperature (鈭?80 掳C). The fabricated prototype LEDs with Ba₃Lu(PO₄)₃: Eu³⁺ and 395 nm-emitting InGaN chips exhibit bright red emission. The present study suggests that Ba₃Lu(PO₄)₃: Eu³⁺ can be a potential red phosphor for NUV light-emitting diodes.