Abstract

This paper reports an approach for improving the photoluminescence characteristics of red-emitting Y_0.95(P_0.6V_0.4)O₄:Eu_0.05 phosphors, with the incorporation of Al³⁺ ions, using a chemical co-precipitation process. In this paper, structural, scanning electron microscopic (SEM), photoluminescence properties, infrared spectroscopy, and CIE of the Y_0.95−x(P_0.6V_0.4)Al_xO₄:Eu_0.05 (x = 0.0, 0.005, 0.01, 0.015, 0.02, 0.025, 0.03, 0.035) phosphors are reported. The doping of a small amount of Al³⁺ ions to Y_0.95−x(P_0.6V_0.4)Al_xO₄:Eu_0.05 phosphors significantly enhanced the emission intensity up to x = 0.025%. The most dominant red emission intensity peak of Eu³⁺ for ⁵D₀ → ⁷F₂ transition of the Y_0.975(P_0.6V_0.4)Al_0.025O₄:Eu_0.05 phosphor is located at 622 nm, which is stronger than that of the free Al³⁺ Y_0.95(P_0.6V_0.4)O₄:Eu_0.05 phosphor. The result shows that this phosphor has a certain amount of the application prospect of the white LED.

中文翻译：

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通过掺杂Al 3+离子增强Y 0.95（P 0.6 V 0.4）O 4：Eu 0.05荧光粉的光致发光性能

摘要

本文报道了一种通过化学共沉淀工艺，通过掺入Al ³⁺离子来改善发射红色的Y _0.95（P _0.6 V _0.4）O ₄：Eu _0.05荧光粉的光致发光特性的方法。在本文中，结构，扫描电子显微镜（SEM），光致发光特性，红外光谱，和CIE在Y的_{0.95- X}（P _0.6 V _0.4）的Al _X ø ₄：Eu的_0.05（X  = 0.0，0.005，0.01，0.015报告了0.02、0.025、0.03、0.035）个磷光体。少量的铝掺杂³⁺离子形成Y _{0.95- x}（P _0.6 V _0.4）Al _x O ₄：Eu _0.05荧光粉可显着提高发射强度，最高x  = 0.025％。Eu的最主要的红色发光强度的峰值³⁺为⁵ d ₀  →  ⁷ ˚F ₂与Y的过渡_0.975（P _0.6 V _0.4）的Al _0.025 ø ₄：Eu的_0.05荧光体位于622nm处，这是强于游离的Al ³⁺ Y_0.95（P _0.6 V _0.4）O ₄：Eu _0.05荧光粉。结果表明，该荧光粉具有一定的白光LED应用前景。