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首页> 外文期刊>RSC Advances >Eu3+/2+ co-doping system induced by adjusting Al/Y ratio in Eu doped CaYAIO(4): preparation, bond energy, site preference and D-5(0) - F-7(4) transition intensity
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Eu3+/2+ co-doping system induced by adjusting Al/Y ratio in Eu doped CaYAIO(4): preparation, bond energy, site preference and D-5(0) - F-7(4) transition intensity

机译：通过调整欧盟掺杂CayaiO（4）中的Al / Y比调节Al / Y比例的EU3 + / 2 +共掺杂系统：制备，键能，位点偏好和D-5（0） - F-7（4）转变强度

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摘要

CaY1-xAl1+xO4:2%Eu (x = 0, 0.1, 0.2) phosphors have been synthesized via a solid-state reaction process. XRD patterns indicate that they are pure phase. The photoluminescence properties of the CaY1-xAl1+xO4:2%Eu phosphors exhibit both the blue emission of Eu2+ (4f(6)5d(1)-4f(7)) and red-orange emission of Eu3+ (D-5(0)-F-7(1,2,3,4)) under UV light excitation, which showed that the Eu3+/2+ co-doping system was obtained by adjusting the Al/Y ratio. Eu3+ ions can be reduced to Eu2+ ions when the Al/Y ratio was changed. In this work, the bond energy method was used to determine and explain the mechanism of the site occupation of Eu ions entering the host matrix. Also, the emission spectrum showed an unusual comparable intensity D-5(0)-F-7(4) transition peak. The relative intensity of D-5(0)-F-7(2) and D-5(0)-F-7(4) can be stabilized by changing the relative proportions of Al3+ and Y3+. Furthermore, this was explained by the J-O theory.
机译：通过固态反应过程合成Cay1-Xal1 + XO4：2％Eu（x = 0,0.1,0.2）磷光体。 XRD模式表明它们是纯阶段。 Cay1-Xal1 + XO4：2％Eu磷光体的光致发光性质表现出Eu2 +（4F（6）5d（1）-4f（7））和Eu3 +的红橙色排放的蓝色排放（D-5（0 ）-F-7（1,2,3,4））在紫外光激发下，显示EU3 + / 2 +共掺杂系统通过调节Al / Y比而获得。 当Al / Y比改变时，Eu3 +离子可以减少到Eu2 +离子。 在这项工作中，使用粘合能量方法来确定和解释Eu离子进入宿主基质的欧盟离子的机制。 而且，发射光谱显示出不寻常的相当强度D-5（0）-F-7（4）转变峰。 通过改变Al 3 +和Y3 +的相对比例，可以稳定D-5（0）-F-7（2）和D-5（0）-F-7（4）的相对强度。 此外，这是由J-O理论解释的。

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  • 来源
    《RSC Advances》 |2018年第42期|共9页
  • 作者

    Pan Yu; Wang Wenjun; Zhu Yuhan; Xu Haibing; Zhou Liqun; Noh Hyeon Mi; Jeong Jung Hyun; Liu Xiaoguang; Li Ling;

  • 作者单位

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organochem Mat Minist Educ Key Lab Synth &

    Applicat Organ Funct Mol Wuhan 430062 Peoples R China;

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organochem Mat Minist Educ Key Lab Synth &

    Applicat Organ Funct Mol Wuhan 430062 Peoples R China;

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organochem Mat Minist Educ Key Lab Synth &

    Applicat Organ Funct Mol Wuhan 430062 Peoples R China;

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organochem Mat Minist Educ Key Lab Synth &

    Applicat Organ Funct Mol Wuhan 430062 Peoples R China;

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organochem Mat Minist Educ Key Lab Synth &

    Applicat Organ Funct Mol Wuhan 430062 Peoples R China;

    Pukyong Natl Univ Dept Phys Busan 608737 South Korea;

    Pukyong Natl Univ Dept Phys Busan 608737 South Korea;

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organochem Mat Minist Educ Key Lab Synth &

    Applicat Organ Funct Mol Wuhan 430062 Peoples R China;

    Hubei Univ Hubei Collaborat Innovat Ctr Adv Organochem Mat Minist Educ Key Lab Synth &

    Applicat Organ Funct Mol Wuhan 430062 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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