Peng Cuiyun, Liu Kangping, Wang Shuanglong, Yu Nanjie, Tang Zhenyu, Ling Zhitian, Lian Hong, Chen Guo, Liao Yingjie, Lan Weixia, Wei Bin
School of Mechatronic Engineering and Automation, Shanghai University 149 Yanchang Road Shanghai 200072 P. R. China
Key Laboratory of Advanced Display and System Applications, Ministry of Education, Shanghai University 149 Yanchang Road Shanghai 200072 P. R. China
RSC Adv. 2019 Jul 22;9(39):22577-22585. doi: 10.1039/c9ra04271g. eCollection 2019 Jul 17.
We have developed a novel organic-inorganic hybrid color conversion electrode composed of Ag NWs/poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) a solution process, which is the first report on a color conversion electrode for applications in flexible optoelectronics. Using the Ag NWs/MEH-PPV composite film as the anode on polyethylene terephthalate substrate and combined with a blue organic light emitting devices (OLEDs) unit employing bis(3,5-difluoro-2-(2-pyridyl)phenyl-(2-carboxypyridyl)iridium(iii)) (Flrpic) in 1,3-bis(carbazol-9-yl)benzene (mCP) as the emitting layer, a highly efficient and chromaticity-stable color-conversion flexible white OLEDs (WOLEDs) is achieved with a maximum current efficiency of 20.5 cd A. To the best of our knowledge, this is the highest efficiency reported for color-conversion based flexible WOLEDs. Our work provides an approach to achieving high-performance flexible WOLEDs devices and demonstrates great potential for lighting and display applications.
我们通过溶液法制备了一种由银纳米线/聚[2-甲氧基-5-(2-乙基己氧基)-1,4-亚苯基乙烯基](MEH-PPV)组成的新型有机-无机杂化颜色转换电极,这是关于用于柔性光电子学的颜色转换电极的首次报道。在聚对苯二甲酸乙二醇酯基板上使用银纳米线/MEH-PPV复合膜作为阳极,并与以双(3,5-二氟-2-(2-吡啶基)苯基-(2-羧基吡啶基)铱(III))(Flrpic)在1,3-双(咔唑-9-基)苯(mCP)中作为发光层的蓝色有机发光器件(OLED)单元相结合,实现了一种高效且色度稳定的颜色转换柔性白色OLED(WOLED),其最大电流效率为20.5 cd/A。据我们所知,这是基于颜色转换的柔性WOLED报道的最高效率。我们的工作提供了一种实现高性能柔性WOLED器件的方法,并展示了在照明和显示应用中的巨大潜力。