Effect of methyl substituents on the N-diaryl rings of anthracene-9,10-diamine derivatives for OLEDs applications
作者:Yuan-Hsiang Yu、Chien-Hsun Huang、Jui-Ming Yeh、Ping-Tsung Huang
DOI:10.1016/j.orgel.2011.01.020
日期:2011.4
non-substituted dopant N,N,N′,N′-tetraphenyl-anthracene-9,10-diamine, current efficiency was promoted to approximately 2.9, 6.33, and 7.94 cd/A, and power efficiency was improved by 0.74, 2.26 and 3.02 lm/W, for dopants with the substituted methyl groups at meta, para and both meta/para positions, respectively. The device, prepared by using the dimethyl-substituted dopant at meta/para position, showed the
合成了一系列在N-二芳基环的间位或对位具有甲基取代基的N-二芳基蒽-9,10-二胺衍生物,并将其用作有机发光器件(OLED)的掺杂剂。已基于材料和固体装置评估对取代的甲基取代基的效果进行了比较。ITO / N,N'-双(萘-1-基)-N,N'-双(苯基)联苯胺(NPB)(40 nm)/ 3%掺杂剂配置的固态器件的性能:9, 10-二(2-萘基)蒽(AND)(40 nm)/三(8-羟基喹啉)铝(Alq 3)(20 nm)/ LiF(1.5 nm)/ Al(200 nm)已被研究。与未取代的掺杂物N,N,N',N'-四苯基蒽-9,10-二胺相比,电流效率提高到2.9、6.33和7.94 cd / A左右,并且功率效率提高了对于分别在间位,对位和两个间位/对位具有甲基取代基的掺杂剂,分别为0.74、2.26和3.02 lm / W。通过在间位/对位使用二甲基取代的掺杂剂制备的器件,当器件的亮度达到CIE(x,y)达到24