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首页> 外文期刊>Organic Electronics >Blade coating of Tris(8-hydroxyquinolinato)aluminum as the electron-transport layer for all-solution blue fluorescent organic light-emitting diodes
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Blade coating of Tris(8-hydroxyquinolinato)aluminum as the electron-transport layer for all-solution blue fluorescent organic light-emitting diodes

机译：Tris（8-hydroxyquinolinato）铝的叶片涂层作为全溶液蓝色荧光有机发光二极管的电子传输层

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摘要

Organic light-emitting diodes (OLEDs) with a low driving voltage and efficient blue fluorescence were fabricated through blade coating. Tris(8-hydroxyquinolinato)aluminum (Al_(q3)) is a relatively stable electron-transporting material commonly used in evaporation. However, depositing Al_(q3) through a solution process is difficult because of its extremely low solubility organic solvents, a result of its symmetrical molecular structure. In this study, Al_(q3) was successfully deposited through blade coating at a very low concentration below 0.1wt%. The OLEDs contained co-dopants BUBD-1 and p-bis(p-N,N-diphenyl-aminostyryl)benzene (DSA-Ph), and a high-band-gap host 2-methyl-9,10-bis(naphthalen-2-yl) anthracene (MADN) as the emission layer with the following structure: ITO/PEDOT:PSS (40 nm)/VB-FNPD (30 nm)/MADN:2% BUBD-1:1% DSA-Ph (50 nm)/TPBI (30 nm)/LiF (0.8 nm)/Al (100 nm)or ITO/ PEDOT:PSS (40 nm)/VB-FNPD (30 nm)/MADN:3% BUBD-1 (50 nm)tris(8-hydroxyquinolinato)aluminum (Al_(q3); 10 nm)/LiF (0.8 nm)/Al (100 nm). 2,7-disubstituted fluorene-based triaryldiamine(VB-FNPD)is the cross-linking transporting material. The device exhibited a peak current efficiency of 5.67 cd/A for Al_(q3) and 5.76 cd/A for TPBI. The device with Al_(q3) has operated lifetime seven times higher than the device with TPBI.
机译：通过刮刀涂层制造了具有低驱动电压和有效蓝色荧光的有机发光二极管（OLED）。三（8-羟基喹啉基）铝（Al_（q3））是一种相对稳定的电子传输材料，通常用于蒸发。然而，由于其对称的分子结构，由于其极低的溶解性有机溶剂，因此难以通过溶液法沉积Al_（q3）。在这项研究中，Al_（q3）以非常低的浓度（低于0.1wt％）成功地通过叶片涂层沉积。 OLED包含共掺杂物BUBD-1和对-双（pN，N-二苯基-氨基苯乙烯基）苯（DSA-Ph）和高带隙主体2-甲基-9,10-双（萘-2） -yl）蒽（MADN）作为具有以下结构的发射层：ITO / PEDOT：PSS（40 nm）/ VB-FNPD（30 nm）/ MADN：2％BUBD-1：1％DSA-Ph（50 nm ）/ TPBI（30 nm）/ LiF（0.8 nm）/ Al（100 nm）或ITO / PEDOT：PSS（40 nm）/ VB-FNPD（30 nm）/ MADN：3％BUBD-1（50 nm）tris （8-羟基喹啉基）铝（Al_（q3）； 10 nm）/ LiF（0.8 nm）/ Al（100 nm）。 2,7-二取代芴基三芳基二胺（VB-FNPD）是交联传输材料。该器件对Al_（q3）的峰值电流效率为5.67 cd / A，对TPBI的峰值电流效率为5.76 cd / A。具有Al_（q3）的器件的使用寿命是具有TPBI的器件的七倍。

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  • 来源
    《Organic Electronics》 |2016年第2期|99-106|共8页
  • 作者

    Yu-Fan Chang; Hsin-Fei Meng; Gang-Lun Fan; Ken-Tsung Wong; Hsiao-Wen Zan; Hao-Wu Lin; Heh-Lung Huang; Sheng-Fu Horng;

  • 作者单位

    Department of Photonics, Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan;

    Institute of Physics, National Chiao Tung University, Hsinchu, Taiwan;

    Department of Chemistry, National Taiwan University, Taipei, Taiwan;

    Department of Chemistry, National Taiwan University, Taipei, Taiwan;

    Department of Photonics, Institute of Electro-Optical Engineering, National Chiao Tung University, Hsinchu, Taiwan;

    Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan;

    E-Ray Optoelectronics Technology Co., Ltd., Taiwan;

    Department of Electrical Engineering, National Tsing Hua University, Hsinchu, Taiwan;

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  • 正文语种 eng
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  • 关键词

    Organic light-emitting diodes; Solution-processed; Tris(8-hydroxyquinolinato)aluminum;

    机译：有机发光二极管;溶液处理;三（8-羟基喹啉基）铝;

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