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首页> 外文期刊>Nanoscience and Nanotechnology Letters >A Study on Effects of Hole Blocking and Luminescence Characteristics of Blue-Light Material DPVBi on Performance of Organic Electroluminescent Devices
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A Study on Effects of Hole Blocking and Luminescence Characteristics of Blue-Light Material DPVBi on Performance of Organic Electroluminescent Devices

机译：蓝光材料DPVBI空穴阻塞和发光特性对有机电致发光器件性能的影响研究

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摘要

The DPVBi (4,4'-bis(2,2-diphenylvinyl)-1,1'-biphenyl) is a blue-light organic fluorescence doped material, which can be used as a hole barrier layer or a luminescent layer for fabricating organic light-emitting devices. In order to study the effects of the DPVBi on the organic light-emitting devices (olds) and the effect of thickness on the device performance, a white optical device prepared by doping method has been designed with the structure as follows: ITO/2T (20 nm)/NPBX (15 nm)/DPVBi (15 nm)/Alq3/rubrene (10, x) nm/Alq3 (40 nm)/LiF (0.5 nm)/Al, and thus the effect of the DPVBi hole barrier layer was illustrated. By making use of the blue dye DPVBi and the red dye DCJTB as the luminescence layer, the white optical devices with the structure of ITO/2T-NATA (20 nm)/NPBX (15 nm)/CBP: 6 wt% DPVBi: X wt% DCJTB (20 nm)/rubrene (0.5 nm)/Alq3 (40 nm)/LiF (0.5 nm)/Al have been prepared, indicating the luminescence characteristics of DPVBi. And finally, the multi-layer organic electroluminescent devices have been designed with the structure as follows: ITO/2T-NATA (20 nm)/NPBX (15 nm)/DPVBi (15 nm)/rubrene (0.5 nm)/rubrene (0.3 nm)/Alq3 (40 nm)/LiF (0.5 nm)/Al. When X = 20 nm, the device performs best. When the applied voltage is 14 V, the maximum brightness is 19300 cd/m(2), and when the voltage is 7 V, the maximum efficiency is 5.236 cd/A, the corresponding color coordinate is (0.27, 0.33), which belongs to the white light device.
机译：DPVBI（4,4'-BIS（2,2-二苯基乙烯基）-1,1'-Biphenyl）是蓝光有机荧光掺杂材料，其可用作空穴阻挡层或用于制造有机物的发光层发光装置。为了研究DPVBI对有机发光器件（旧）的影响以及厚度对器件性能的影响，通过掺杂方法制备的白色光学装置已经设计成如下：ITO / 2T（ 20nm）/ npbx（15nm）/ dpvbi（15nm）/ alq3 / rumrene（10，x）nm / alq3（40nm）/ lif（0.5nm）/ al，因此是DPVBI孔阻挡层的效果被说明了。通过利用蓝色染料DPVBI和红色染料DCJTB作为发光层，具有ITO / 2T-NATA（20nm）/ NPBX（15nm）/ Cbp：6wt％dpvbi：x的白色光学器件已经制备了WT％DCJTB（20nM）/毒物（0.5nm）/ Alq3（40nm）/ LiF（0.5nm）/ Al，表明DPVBI的发光特性。最后，多层有机电致发光器件设计有如下的结构：ITO / 2T-NATA（20nm）/ NPBX（15nm）/ DPVBI（15nm）/毒物（0.5nm）/ rumerene（0.3 NM）/ Alq3（40nm）/ LiF（0.5nm）/ Al。当x = 20 nm时，设备最佳地执行。当施加的电压为14 V时，最大亮度为19300cd / m（2），当电压为7 v时，最大效率为5.236cd / a，相应的颜色坐标是（0.27,0.33），属于到白光器件。

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