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Silver Zeolite Composites-Based LEDs: A Novel Solid-State Lighting Approach

机译：基于银沸石复合材料的LED：一种新型的固态照明方法

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摘要

Silver clusters incorporated in a zeolite matrix represent a promising alternative for rare earth phosphors, organic dyes, and quantum dots as emitters in organic and hybrid organic/inorganic light-emitting diodes (OLEDs). Compared to other existing types of emitters, they combine an excellent stability to oxygen and humidity with a high luminescence quantum yield and color tunability. This study reports on the first use of these silver exchanged zeolites embedded in polyvinyl carbazole (PVK), which is expected to act as a conducting matrix, as emitters in a single-layer OLED. It is demonstrated that the introduction of these Ag zeolites leads to electroluminescence bands that clearly differ from pristine PVK OLEDs as well as from the photoluminescence spectra of the Ag zeolites. The current density and the spectral properties observed in these devices are strongly influenced by the zeolite silver loading, paving the way for a new type of easily tunable hybrid and costeffective OLEDs.
机译：包含在沸石基质中的银团簇可作为稀土荧光粉，有机染料和量子点的有前途的替代物，作为有机和混合有机/无机发光二极管（OLED）中的发射体。与其他现有类型的发射器相比，它们结合了对氧气和湿气的出色稳定性以及高发光量子产率和颜色可调性。这项研究报告了嵌入聚乙烯基咔唑（PVK）中的这些银交换沸石的首次使用，该材料有望用作导电基质，并用作单层OLED的发射器。已经证实，这些Ag沸石的引入导致电致发光带，其明显不同于原始PVK OLED以及Ag沸石的光致发光光谱。在这些设备中观察到的电流密度和光谱特性受到沸石银载量的强烈影响，这为新型易于调谐的混合型和经济高效的OLED铺平了道路。

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  • 来源
    《Advanced Functional Materials》 |2017年第14期|1606411.1-1606411.8|共8页
  • 作者

    Kennes Koen; Coutino-Gonzalez Eduardo; Martin Cristina; Baekelant Wouter; Roeffaers Maarten B. J.; Van der Auweraer Mark;

  • 作者单位

    Katholieke Univ Leuven, Chem&Tech Mol Imaging & Photon, Celestijnenlaan 200F, B-3001 Leuven, Belgium;

    Katholieke Univ Leuven, Chem&Tech Mol Imaging & Photon, Celestijnenlaan 200F, B-3001 Leuven, Belgium|CONACYT Ctr Invest & Desarrollo Tecnol Electroqui, Parque Ind Queretaro,Sanfandila S-N, Pedro Escobedo 76703, Queretaro, Mexico;

    Katholieke Univ Leuven, Chem&Tech Mol Imaging & Photon, Celestijnenlaan 200F, B-3001 Leuven, Belgium;

    Katholieke Univ Leuven, Chem&Tech Mol Imaging & Photon, Celestijnenlaan 200F, B-3001 Leuven, Belgium;

    Katholieke Univ Leuven, Chem&Tech Ctr Surface Chem & Catalysis, Celestijnenlaan 200F, B-3001 Leuven, Belgium;

    Katholieke Univ Leuven, Chem&Tech Mol Imaging & Photon, Celestijnenlaan 200F, B-3001 Leuven, Belgium;

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