Delayed fluorescence material and organic electroluminescence device

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United States of America Patent

PATENT NO 9783734
APP PUB NO 20120217869A1
SERIAL NO

13220319

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Abstract

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A delayed fluorescence material containing a mixture of an acceptor compound and a donor compound that satisfies the following formulae (1) to (4):

description='In-line Formulae' end='lead'T1A−S1>0.2 eV  (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'T1D−S1≧0.2 eV  (2)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'|LUMOA|>2.0 eV  (3)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'|HOMOD|≦5.3 eV  (4)description='In-line Formulae' end='tail'

wherein T1A represents the excited triplet energy of the acceptor compound; T1D represents the excited triplet energy defined of the donor compound; S1 represents the excited singlet energy of the exciplex; LUMOA represents the energy level of LUMO of the acceptor compound; and HOMOD represents the energy level of HOMO of the donor compound.

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Patent Owner(s)

Patent OwnerAddress
KYULUX INC4-1 KYUDAI-SHINMACHI NISHI-KU FUKUOKA-SHI FUKUOKA 819-0388

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adachi, Chihaya Fukuoka, JP 180 2953
Goushi, Kenichi Fukuoka, JP 11 98
Yoshida, Kou Fukuoka, JP 5 73

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