Unicolored phosphor-sensitized fluorescence for efficient and stable blue OLEDs
نویسندگان
چکیده
منابع مشابه
Novel host materials for blue phosphorescent OLEDs
We present two classes of host materials for blue phosphors. The first are carbazole substituted biphenyls 1-9. In these CBP-type materials the triplets are confined to one half of the molecules by using either twisted biphenyls or by a metalinkage of the carbazoles to the biphenyl. We obtained high triplet energies of 2.95-2.98 eV and high glass transition temperatures in the range of 100-120 ...
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Combining a sterically bulky, electron-deficient 2-(2,4-difluorophenyl)-4-(2,4,6-trimethylphenyl)pyridine (dFMesppy) cyclometalating C4N ligand with an electron rich, highly rigidified 1,10-(a,a0-o-xylylene)-2,20biimidazole (o-xylbiim) N4N ligand gives an iridium complex, [Ir(dFMesppy)2(o-xylbiim)](PF6), that achieves extraordinarily bright blue emission (FPL = 90%; lmax = 459 nm in MeCN) for a...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2018
ISSN: 2041-1723
DOI: 10.1038/s41467-018-07432-2