宽带发射Ca_2KMg_2V_3O_(12):Eu~(3+)荧光粉的制备及其发光性能研究

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英文篇名：Synthesis and Luminescence Properties of Broadband Emission Ca_2KMg_2V_3O_(12):Eu~(3+) Phosphors 作者：周江聪 ; 黄烽 英文作者：ZHOU Jiang-cong;HUANG Feng;College of Chemistry & Materials Science,Longyan University;College of Physics and Energy,Fujian Normal University; 关键词：Ca2KMg2V3O12 ; Eu3+ ; 高温固相反应 ; 白光LED ; 荧光性能 ; 自激活发光 英文关键词：Ca2KMg2V3O12:Eu3+;;high temperature solid phase reaction;;white LED;;luminescence performance;;self-activation luminescence 中文刊名：RGJT 英文刊名：Journal of Synthetic Crystals 机构：龙岩学院化学与材料学院;福建师范大学物理与能源学院; 出版日期：2018-08-15 出版单位：人工晶体学报 年：2018 期：v.47;No.238 基金：国家自然科学基金(51702147) 语种：中文; 页：RGJT201808030 页数：5 CN：08 ISSN：11-2637/O7 分类号：179-182+196

摘要

本文通过高温固相法合成了新型的宽带发射Ca_2KMg_2V_3O_(12):Eu~(3+)荧光粉,并利用X射线粉末衍射仪,荧光光谱仪等表征手段对荧光粉的晶体结构及其发光性能进行了分析;探讨了Ca_2KMg_2V_3O_(12)荧光粉的自激活发光机理和Eu3+掺杂浓度对发光性能的影响。结果表明:所制备的样品为立方晶系Ca_2KMg_2V_3O_(12)晶体。在紫外光的激发下,Ca_2KMg_2V_3O_(12):Eu~(3+)既表现出[VO4]基团的宽带发射,又表现出Eu3+的特征发射,同时两者之间存在能量传递。Ca_2KMg_2V_3O_(12):Eu~(3+)荧光粉是一种良好的自激活发光材料,在紫外光激发的白光LED上具有潜在的应用前景。
        Novel broadband emission Ca_2KMg_2V_3O_(12):Eu~(3+)phosphors were synthesized by the high temperature solid phase reaction. Their crystal structure and luminescent properties were analyzed by Xray powder diffraction and fluorescence spectrometer. Meanwhile, the self-activating luminescence mechanism of Ca_2KMg_2V_3O_(12) phosphors was investigated and the affection of Eu3 +ion doping concentration on luminescence performance was discussed. The results show that the preparation samples were cubic phase Ca_2KMg_2V_3O_(12) crystals. Under the excitation of ultraviolet,Ca_2KMg_2V_3O_(12):Eu~(3+)shows the broadband emission of [VO4]group and Eu3 +luminescence,the energy transfer between them existed. Ca_2KMg_2V_3O_(12):Eu~(3+)phosphor was a good self-activating luminescent material and exhibited great potential application in ultraviolet excitation white LED.

引文

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