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首页> 外文期刊>RSC Advances >Novel far-red-emitting SrGdAlO4:Mn4+ phosphors with excellent responsiveness to phytochrome P-FR for plant growth lighting
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Novel far-red-emitting SrGdAlO4:Mn4+ phosphors with excellent responsiveness to phytochrome P-FR for plant growth lighting

机译：新颖的远红发射SRGDALO4：MN4 +荧光粉对植物生长照明的植物生长照明具有优异的植物P-FR的反应性

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摘要

In this work, we reported on novel far-red-emitting SrGdAlO4:Mn4+ (SGA:Mn4+) phosphors towards application in plant growth lighting. The crystal structure and luminescence properties were investigated on the basis of X-ray diffraction, excitation and emission spectra, luminescence decay curves and temperature-dependent photoluminescence spectra. When excited by 353 nm, the SGA:Mn4+ phosphors showed a far-red emission band in the 650-800 nm wavelength range with peaks at 709 and 725 nm, which was due to the E-2(g) (4)A(2g) electron transition of Mn4+ ion. The optimal Mn4+ doping concentration was about 0.1 mol%. The CIE chromaticity coordinates of the SGA:0.1%Mn4+ sample were (0.7064, 0.2934). The luminescence decay lifetimes decreased gradually from 1.263 to 0.868 ms with the increasing Mn4+ concentrations. Notably, the emission band of SGA:0.1%Mn4+ sample was well-matched with the absorption spectrum of phytochrome P-FR, which indicated the SGA:Mn4+ were potential far-red-emitting phosphors for plant growth applications.
机译：在这项工作中，我们向植物生长照明中的应用进行了新的远红发射SRGDALO4：MN4 +（SGA：MN4 +）磷光体。基于X射线衍射，激发和发射光谱，发光衰减曲线和温度依赖性光致发光光谱来研究晶体结构和发光性能。当通过353nm激发时，SGA：Mn4 +磷光体在650-800nm波长范围内显示出远红色发射带，其峰值为709和725nm，这是由于E-2（g）（4）A（ 2g）Mn4 +离子的电子转变。最佳MN4 +掺杂浓度约为0.1mol％。 SGA的CIE色度坐标：0.1％MN4 +样品（0.7064,0.2934）。随着Mn4 +浓度的增加，发光衰减寿命从1.263升至0.868ms。值得注意的是，SGA：0.1％MN4 +样品的发射带与植物色度P-FR的吸收光谱良好匹配，这表明SGA：Mn4 +是用于植物生长应用的潜在远红发射磷光体。

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  • 来源
    《RSC Advances》 |2018年第69期|共7页
  • 作者

    Sun Qi; Wang Shaoying; Devakumar Balaji; Li Bin; Sun Liangling; Liang Jia; Chen Daqin; Huang Xiaoyong;

  • 作者单位

    Taiyuan Univ Technol Coll Phys &

    Optoelect Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys &

    Optoelect Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys &

    Optoelect Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys &

    Optoelect Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys &

    Optoelect Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys &

    Optoelect Taiyuan 030024 Shanxi Peoples R China;

    Fujian Normal Univ Coll Phys &

    Energy Fuzhou 350117 Fujian Peoples R China;

    Taiyuan Univ Technol Coll Phys &

    Optoelect Taiyuan 030024 Shanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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