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- W2411363947 abstract "A bipolar macrospirocyclic trimer based on 4,5-diazafluorene and triphenylamine was prepared as a host for solution-processed blue phosphorescent organic light emitting diodes. The oligomer exhibits a high triplet energy of 2.88 eV, excellent thermal and morphological stability, good film-forming ability and solution processability. A solution-processed phosphorescent device based on FIrpic and the trimer achieved a maximum current efficiency of 10.0 cd A−1 with a low current efficiency roll-off at the practical luminance (9.6, 10.0, 9.4 cd A−1 at 102, 207, 1096 cd m−2, respectively). The oligomer additionally showed excellent chemical compatibility with the common host for solution-processing technology. A blue phosphorescent device using mixed hosts of the trimer/4,4′-cyclohexylidenebis(N,N-bis(4-methyl -phenyl)benzenamine) achieved a low turn-on voltage of 3.0 V, a maximum luminance of 28,368 cd m−2, and a maximum current efficiency of 17.7 cd A−1 (11.9 lm W−1), which is almost three times that of a single 4,4′-cyclohexylidenebis(N,N- bis(4-methylphenyl)benzenamine)-hosted device." @default.
- W2411363947 created "2016-06-24" @default.
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- W2411363947 date "2016-11-01" @default.
- W2411363947 modified "2023-10-07" @default.
- W2411363947 title "A bipolar macrospirocyclic oligomer based on triphenylamine and 4,5-diazafluorene as a solution-processable host for blue phosphorescent organic light-emitting diodes" @default.
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- W2411363947 doi "https://doi.org/10.1016/j.dyepig.2016.06.003" @default.
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