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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Novel Composites of Graphitic-phase Nitrogen Carbon/Lanthanide Coordination Polymers as White Light-emitting Phosphor
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Novel Composites of Graphitic-phase Nitrogen Carbon/Lanthanide Coordination Polymers as White Light-emitting Phosphor

机译：石墨相氮气/镧系元素配位聚合物作为白色发光磷光体的新型复合材料

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摘要

Lanthanide coordination polymers (Ln-CPs) are excellent candidates for designing white light materials due to their adjustable fluorescent characteristic by decorating organic ligands, changing metal centers and including guests. However, low quantum yield, weak blue emission, high prices and supply risks have hindered the application and developments of the pure Ln-CPs materials. Herein, we have designed a new white color composite material capable of white light-emission upon excitation at 338 nm, which fabricated by compositing a graphitic-phase nitrogen carbon (g-C3N4) treated with nitric acid and lanthanide-based complexes, with the photoluminescencequantum yield (QY) in solid state reaching 11.7%. WLEDs constructed by depositing the (g-C3N4)(0.783)/Eu-0.133/Tb-0.083-dbpt [dbpt = 3-(3,5-dicarboxylphenyl)-5-(pyrazinyl)-1H-1,2,4-triazole] composites on a commercial UV LED chip feature a CIE chromaticity coordinate at (0.33, 0.33), high color rendering index (CRI) of 94.6. Compared to conventional white light-emission Ln-CPs materials of La0.928Eu0.045Tb0.027-dbpt and La0.896Eu0.104-dbpt reveals that (g-C3N4)(0.783)/Eu-0.133/Tb-0.083-dbpt composites have higher QY and CRI values.
机译：镧系元素配位聚合物（LN-CPS）是通过装饰有机配体，改变金属中心和包括客人的可调节荧光特性而设计白光材料的优异候选者。然而，低量子产量，弱蓝发射，高价格和供应风险都阻碍了纯LN-CPS材料的应用和发展。在此，我们设计了一种能够在338nm的激发时设计的新的白色复合材料，其通过与用硝酸和镧系元络合物处理的石墨相氮碳（G-C3N4）合成，用光致发光Quantum产量（Qy），固态达到11.7％。通过沉积（G-C3N4）（0.783）/eU-0.133/Tb-0.083-dbpt [dbpt = 3-（3,5-二羧基苯基）-5-（吡嗪基）-1h-1,2,4-三唑]商业紫外LED芯片上的复合材料具有CIE色度坐标（0.33,0.33），高色渲染指数（CRI）为94.6。与La0.928EU0.045TB0.027-DBPT和LA0.896EU0.104-DBPT的常规白光发射LN-CPS材料相比，显示（G-C3N4）（0.783）/eU-0.133/TB-0.083-DBPT复合材料有更高的QY和CRI值。

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  • 来源
  • 作者

    Bao Wei; Yu Xiao-Yan; Dong Wen-Wen; Zhao Jun; Tian Zheng-Fang; Li Dong-Sheng;

  • 作者单位

    China Three Gorges Univ Hubei Prov Collaborat Innovat Ctr New Energy Micr Key Lab Inorgan Nonmetall Crystalline &

    Energy Co Coll Mat &

    Chem Engn Yichang 443002 Peoples R China;

    China Three Gorges Univ Hubei Prov Collaborat Innovat Ctr New Energy Micr Key Lab Inorgan Nonmetall Crystalline &

    Energy Co Coll Mat &

    Chem Engn Yichang 443002 Peoples R China;

    China Three Gorges Univ Hubei Prov Collaborat Innovat Ctr New Energy Micr Key Lab Inorgan Nonmetall Crystalline &

    Energy Co Coll Mat &

    Chem Engn Yichang 443002 Peoples R China;

    China Three Gorges Univ Hubei Prov Collaborat Innovat Ctr New Energy Micr Key Lab Inorgan Nonmetall Crystalline &

    Energy Co Coll Mat &

    Chem Engn Yichang 443002 Peoples R China;

    Huanggang Normal Univ Hubei Key Lab Proc &

    Applicat Catalyt Mat Huanggang 438000 Peoples R China;

    China Three Gorges Univ Hubei Prov Collaborat Innovat Ctr New Energy Micr Key Lab Inorgan Nonmetall Crystalline &

    Energy Co Coll Mat &

    Chem Engn Yichang 443002 Peoples R China;

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

    White light emission; Lanthanide; Photoluminescence; g-C3N4;

    机译：白光发射;镧系;光致发光;G-C3N4;

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