用于溶液处理高性能磷光有机发光二极管的混合主体墨水。
Blended host ink for solution processing high performance phosphorescent OLEDs.
作者信息
Lin Tong, Sun Xue, Hu Yongxu, Mu Wanying, Sun Yuling, Zhang Dongyu, Su Zisheng, Chu Bei, Cui Zheng
机构信息
Printable electronics research center, Suzhou Institute of nanotech and nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, P.R. China.
State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, P.R. China.
出版信息
Sci Rep. 2019 May 2;9(1):6845. doi: 10.1038/s41598-019-43359-4.
In order to solve the interface issues in solution deposition of multilayer OLED devices, a blended host concept was developed and applied to both spin-coating and inkjet printing of phosphorescent OLEDs. The blended host consists of 1,3-bis(carbazolyl)benzene (mCP) and1,3,5-tri(phenyl-2-benzimidazoly)-benzene (TPBi). Maximum current efficiency (CE) of 24.2 cd A and external quantum efficiency (EQE) of 7.0% have been achieved for spin-coated device. Maximum CE and EQE of 23.0 cd A and 6.7% have been achieved for inkjet printed device. The films deposited by printing and spin-casting were further researched to explore the effect of those different processing methods on device performance.
为了解决多层有机发光二极管（OLED）器件溶液沉积中的界面问题，开发了一种混合主体概念，并将其应用于磷光OLED的旋涂和喷墨打印。混合主体由1,3-双（咔唑基）苯（mCP）和1,3,5-三（苯基-2-苯并咪唑基）苯（TPBi）组成。旋涂器件实现了24.2 cd/A的最大电流效率（CE）和7.0%的外量子效率（EQE）。喷墨打印器件实现了23.0 cd/A的最大CE和6.7%的EQE。对通过打印和旋铸沉积的薄膜进行了进一步研究，以探索这些不同加工方法对器件性能的影响。
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