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New blue host materials based on anthracene-containing dibenzothiophene
Wang, Lei,Wu, Zhi-Yong,Wong, Wai-Yeung,Cheah, Kok-Wai,Huang, Hong,Chen, Chin H.
, p. 595 - 601 (2011)
A series of novel host blue-emitting materials based on anthracene have been synthesized and investigated in which, a π-electron-rich dibenzothiophene moiety was introduced as a side group to fine adjust the HOMO/LUMO levels of the anthracene and enhance the ability of hole-transport and electron-injection. These materials exhibit good film-forming capabilities, and display strong blue fluorescence in solution. To explore the electroluminescent properties of these materials, sky blue devices of 2-TNATA (60 nm)/NPB (10 nm)/Host: BUBD-1 (40 nm)/Alq3 (15 nm)/LiF (1 nm)/Al (150 nm) were fabricated. For the device with 9, 10-bis(dibenzothiophen-4-yl)anthracene as the host, an electroluminescence efficiency of 13.14 cd/A and 6.76 lm/W at 20 mA/cm2 and 6.09 V were achieved, with Commission Internationale d'Eclairage (CIEx,y) color coordinates of (x = 0.15, y = 0.30).
Novel compound and organic light emitting device comprising the same
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Paragraph 0158; 0163-0165; 0167-0169, (2021/03/09)
The present invention provides a novel compound and an organic light emitting device using the same. The present invention provides a compound represented by chemical formula 1. The compound represented by chemical formula 1 described above can be used as a material for an organic layer of the organic light emitting device, and can improve efficiency, low driving voltage, and/or lifespan characteristics in the organic light emitting device.
Asymmetric antracene derivatives having two naphthyl groups and organic light-emitting diode including the same
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Paragraph 0285; 0290-0291, (2019/12/25)
The present invention relates to antracene derivatives represented by [Formula A] and [Formula B], and an organic light-emitting diode including the same. Substituents X_1 to X_14, Y, and Z are the same as defined in the detailed description.