有机发光二极管
芘
掺杂剂
荧光
光化学
二极管
芯(光纤)
材料科学
光电子学
兴奋剂
化学
光学
有机化学
纳米技术
复合材料
物理
图层(电子)
作者
Yunho Ahn,Seonghyun Kim,Jae Ho Song,Wonsik Yeom,Jihoon Lee,Min Chul Suh
标识
DOI:10.1016/j.dyepig.2022.110505
摘要
New blue fluorescent dopant materials based on pyrene moieties were synthesized by variation of the positions of N -phenylnaphthalene-1-amine functional groups to minutely control the molecular geometry and photophysical properties. A blue dopant with the functional groups at the 1, 6 position exhibited the highest photoluminescence quantum yield . 3,8-Diisopropyl- N 1 , N 6 -di(naphthalen-1-yl)- N 1 , N 6 -diphenylpyrene-1,6-diamine ( DI-1,6-DAP ) exhibited the best performances with a current efficiency of up to 6.89 cd/A and external quantum efficiency of 5.45% among the new synthetic dopants prepared in this study. In terms of color purity, the case of substituting arylamine groups at the 1,7 position of the pyrene core unit [ N 1 , N 7 -di(naphthalen-1-yl)- N 1 , N 7 -diphenylpyrene-1,7-diamine ( 1,7-DAP )] was superior to the case of attaching them at the 1,6 position of the same core unit [ N 1 , N 6 -di(naphthalen-1-yl)- N 1 , N 6 -diphenylpyrene-1,6-diamine ( 1,6-DAP )] ( y < 0.098). • Deep blue fluorescent dopant materials synthesized by changing the position of functional groups. • Positional effect exhibiting the difference in performance and color purity. • Good agreement results between the molecular simulation and device performance.
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