1346669-12-2Relevant academic research and scientific papers
Compounds applied to field of OLEDs (organic light-emitting diodes)
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Paragraph 0034-0039, (2017/04/22)
The invention provides compounds applied to the field of OLEDs (organic light-emitting diodes). The invention is characterized in that the structure is disclosed as general formula (I), wherein Y is the S or O element, X1 and X2 are respectively independently N or C, and R is aromatic compounds. The compounds are carbazole-bibenzothiophene/furan-structure derivative compounds, and can be applied into electronic transmission layers, luminescent layers and hole transmission layers of OLEDs and especially preferably in red-light main body materials, green-light main body materials and hole transmission materials to finally obtain an OLED device with better properties.
Highly efficient triazine/carbazole-based host material for green phosphorescent organic light-emitting diodes with low efficiency roll-off
Hu, Mingming,Liu, Yang,Chen, Yi,Song, Wenxuan,Gao, Lei,Mu, Haichuan,Huang, Jinhai,Su, Jianhua
, p. 7287 - 7292 (2017/02/05)
Two novel host materials, 3-(dibenzo[b,d]furan-4-yl)-9-(4,6-diphenyl-1,3,5-triazin-2-yl)-9H-carbazole (BFTC) and 3-(dibenzo[b,d]thiophen-4-yl)-9-(4,6-diphenyl-1,3,5-triazin-2-yl)-9H-carbazole (BTTC) were designed and synthesized. These two compounds exhibited excellent physical properties with high thermal stabilities and reasonable HOMO-LUMO energy levels. Both of them were applied to fabricate green phosphorescent organic light emitting devices (PhOLEDs) as host materials, and the BTTC based device demonstrated outstanding electroluminescence performance with a maximum current efficiency, maximum power efficiency and external quantum efficiency of 69.3 cd A-1, 54.2 lm W-1 and 21.9%, respectively, suggesting that BTTC is a promising host for green PhOLEDs.
