A Long-Lasting Phosphor Ba3P4O13: Eu2+

ECS Solid State Letters Pub Date : 2014-11-13 DOI:10.1149/2.0051501SSL

Haijie Guo, Wenbo Chen, Wei Zeng, Yuhua Wang, Yanyan Li

引用次数: 11

Abstract

A new long-lasting phosphor Ba3P4O13: Eu2+ has been synthesized through the high temperature solid-state method. The excitation spectrum of Ba2.99P4O13: 0.01Eu(2+) is a broadband from 200 to 450 nm attributed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions. The emission spectrum of Ba2.99P4O13: 0.01Eu(2+) exhibits an asymmetric emission band ascribed to the 4f(7)-> 4f(6)5d(1) transition of Eu2+ ions in two different sites. Under the optimum doping concentration, the long-lasting phosphorescence (LLP) can persist for nearly 85 min at recognizable intensity level (>= 0.32 mcd/m(2)). The mechanism of afterglow is discussed briefly. (C) 2014 The Electrochemical Society. All rights reserved.

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长效荧光粉Ba3P4O13: Eu2+

采用高温固相法合成了一种新型长效荧光粉Ba3P4O13: Eu2+。Ba2.99P4O13: 0.01Eu(2+)的激发光谱为200 ~ 450 nm宽，这是由于Eu2+离子的4f(7)-> 4f(6)5d(1)跃迁所致。Ba2.99P4O13: 0.01Eu(2+)的发射光谱呈现不对称的发射带，这是由于Eu2+离子在两个不同位置的4f(7)-> 4f(6)5d(1)跃迁所致。在最佳掺杂浓度下，在可识别的强度水平(>= 0.32 mcd/m(2))下，持久磷光(LLP)可以持续近85 min。简要讨论了余辉产生的机理。(C) 2014电化学学会。版权所有。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ECS Solid State Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED

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