当前位置: X-MOL 学术J. Ind. Eng. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Deep-blue organic light-emitting diodes based on multi-tert-butyl modified naphthylene
Journal of Industrial and Engineering Chemistry ( IF 5.9 ) Pub Date : 2021-07-02 , DOI: 10.1016/j.jiec.2021.06.031
Bin Wei 1 , Hanfei Xu 1 , Ning Zhao 1 , Xicun Gao 2 , Yiteng Ye 2 , Yingnan Wang 2 , Dengli Yao 3 , Xiaowen Zhang 3 , Xiujuan Liu 4
Affiliation  

Six tert-butyls modified naphthyl derivative (2,6-di-tert-butyl-1,5-bis-(3,5-di-tert-butyl-phenyl)-naphthalene (N(dtb)4) was synthesized and tested for host and guest materials in organic light-emitting diodes (OLEDs). Blue OLED using N(dtb)4 as a host and an emitter DSA-PH as a guest reaches an efficiency of 11.52 cd·A−1 (maximum external quantum efficiency 7.8 % and maximum power efficiency 10.33 lm·W−1). In addition, for the OLED with N(dtb)4 being a guest, we find that the concentrations of N(dtb)4 will also affect the performance of the OLED, among which ADN: 5 wt.% N(dtb)4 has higher efficiency, and the maximum current efficiency, external quantum efficiency (EQE) and power efficiency of the device reach 3.75 cd·A−1, 3.93 % and 3.36 lm·W−1, respectively. We also investigated the pure N(dtb)4 -based ultraviolet OLED (UV-OLED), and achieved the maximum EQE of the device is 1.12 %. These results indicate that N(dtb)4, a novel synthesized fluorescent organic material, has great potential applications in OLEDs and accordingly advancing lightings and displays.



中文翻译:

基于多叔丁基改性萘的深蓝色有机发光二极管

合成并测试了六种叔丁基改性萘基衍生物(2,6-二叔丁基-1,5-双-(3,5-二叔丁基-苯基)-萘(N(dtb) 4)用于有机发光二极管 (OLED) 中的主体和客体材料。使用 N(dtb) 4作为主体和发射极 DSA-PH 作为客体的蓝色 OLED的效率达到 11.52 cd·A -1(最大外量子效率) 7.8 % 和最大功率效率 10.33 lm·W -1 . 此外,对于以 N(dtb) 4为客体的 OLED ,我们发现 N(dtb) 4的浓度也会影响 OLED 的性能,其中ADN:5 wt.% N(dtb) 4具有更高的效率,器件的最大电流效率、外量子效率(EQE)和功率效率分别达到3.75 cd·A -1、3.93 %和3.36 lm·W -1。我们还研究了纯 N(dtb) 4基紫外 OLED (UV-OLED),并实现了器件的最大 EQE 为 1.12%。这些结果表明,N(dtb) 4是一种新型的合成荧光有机材料,在OLED 中具有巨大的应用潜力,并因此推动了照明和显示器的发展。

更新日期:2021-08-07
down
wechat
bug