High performance, flexible polymer light-emitting diodes (PLEDs) with gravure contact printed hole injection and light emitting layers
High performance, flexible polymer light-emitting diodes (PLEDs) with gravure contact printed hole injection and light emitting layers
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DOI：
10.1016/j.orgel.2010.03.010
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发表时间：
2010-06-01
影响因子：
3.2
通讯作者：
Campbell, Alasdair J.
中科院分区：
文献类型：
--
作者：
Chung, Dae-Young;Huang, Jingsong;Campbell, Alasdair J.
有机半导体器件制造的最终方法预计是通过高速、大面积、卷对卷（R2 R）印刷。凹版接触印刷是最高的容量潜力的技术之一，在超过35米/分钟的速度运行。在这里，我们报告高性能，灵活的聚合物发光二极管（PLED）与凹版接触印刷孔注入和发射层。我们能够成功地印刷高度均匀的最佳厚度的聚（3，4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS）和发光聚合物（LEP）LUMATION（TM）绿色1300。所有优化的配方干燥迅速，均匀，无溶质聚集，并与塑料基材上的快速加工兼容。具有凹版印刷层的PLED具有与相同基板上的常规旋涂器件相同的性能，在100 cd/m2的显示亮度下，分别实现5.4 lm/W、5.2 cd/A和3 V的亮度、效率和驱动偏置值。该器件实现了8.8 lm/W的最大亮度和66，000 cd/m（2）的最大亮度，与传统制造的最先进的绿色发光柔性PLED的性能范围相当。(C)2010 Elsevier B. V.保留所有权利。
The ultimate approach to organic semiconductor device fabrication is expected to be via high-speed, large area, roll-to-roll (R2R) printing. Gravure contact printing is one of the highest volume potential techniques, operating at speeds of over 35 m/min. Here we report high performance, flexible polymer light-emitting diodes (PLEDs) with gravure contact printed hole injection and emissive layers. We are able to successfully print highly uniform layers of optimum thickness of poly (3,4-ethylene dioxythiophene): poly (styrene sulfonate) (PEDOT:PSS) and the light emitting polymer (LEP) LUMATION (TM) Green 1300. All the optimised formulations dry rapidly and evenly without solute aggregation and are compatible with fast processing on plastic substrates. PLEDs with the gravure printed layers have an identical performance to conventional spin-coated devices on the same substrate, achieving, at a display brightness of 100 cd/m(2), luminosity, efficiency and drive bias values of 5.4 lm/W, 5.2 cd/A and 3 V, respectively. The devices achieve a maximum luminosity of 8.8 lm/W and a maximum luminance of 66,000 cd/m(2), comparable to the performance range found for conventionally fabricated state-of-the-art green-emitting flexible PLEDs. (C) 2010 Elsevier B.V. All rights reserved.