Kyulux, Inc.

Kyushu University

Keiro Nasu

Ayataka Endo

Naoto Notsuka

Jorge Aguilera-Iparraguirre

Yu Seok Yang

Yoshitake Suzuki

Shuo-Hsien Cheng

Timothy D Hirzel

Rafael Gomez-Bombarelli

Chihaya Adachi

Hiroko Nomura

Hajime Nakanotani

Tsang Ping Kuen

Hayato Kakizoe

YuSeok Yang

Tetsuya Nakagawa

Ping Kuen Daniel Tsang

Asuka Yoshizaki

Kiyomasa Sueishi

Hidetoshi Fujimura

Gabor Mehes

Yan Geng

Junji Adachi

Minki Hong

Tsang Ping Kuen Daniel

The present disclosure relates to compounds of Formula (I)-(V) as compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Composition of matter for use in organic light- emitting diodes

The present disclosure relates in part to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

Composition of matter for use in organic light-emitting diodes

A compound represented by the following general formula is excellent in light emission properties. Rand Reach independently represent a fluorinated alkyl group, D represents a substituent in which Hammett's &#x3c3;value is negative, and A represents a substituent in which Hammett's &#x3c3;value is positive. 

Light-emitting material, compound, and organic light-emitting element

The present disclosure relates in parts to compounds capable of emitting delayed fluorescence and uses of these compounds in organic light-emitting diodes.

The present disclosure relates to compounds capable of emitting delayed fluorescence, and uses of these compounds in organic light-emitting diodes.

An organic light emitting device having an exciton generation layer that contains a compound having a difference between the lowest excited singlet energy level Eand the lowest excited triplet energy level Ethereof of 0.3 eV or less, or an exciplex to emit delayed fluorescence, and a light emitting layer that contains a light emitting material has a high efficiency and a long lifetime.

Organic light-emitting device

The present disclosure relates to compounds of formula (I) 

A compound having a structure represented by the following general formula emits delayed fluorescent light and is useful as a light-emitting material. Three or more of R, R, R, and Reach represent a 9-carbazolyl group, a 10-phenoxazyl group, or a 10-phenothiazyl group, and the balance thereof and Reach represent a hydrogen atom or a substituent, but exclude a cyano group. Rexcludes an aryl group, a heteroaryl group, and an alkynyl group. 

Compound, light-emitting material, and organic light-emitting device

A compound having a structure represented by the following general formula emits delayed fluorescent light, and is useful as a light-emitting material. One or more of R, R, R, R, and Rrepresent a 9-carbazolyl group having a substituent at at least one of 1-position and 8-position, or a 10-phenoxazyl group or 10-phenothiazyl group having a substituent at at least one of 1-position and 9-position. The balance thereof represents a hydrogen atom or a substituent. 

An organic electroluminescence element in which a compound represented by the general formula below is used in a light-emitting layer exhibits a high emission efficiency and is inexpensive to provide. At least one of Rto Rand Rrepresent an electron-donating group and the others represent a hydrogen atom; at least one of Rto Rrepresent an electron-withdrawing group that does not have an unshared electron pair at the &#x3b1;-position thereof and the others represent a hydrogen atom; Z represents a single bond or &#x3e;C&#x2550;Y; Y represents O, S, C(CN)or C(COOH); provided that when Z is a single bond, then at least one of Rto Ris an electron-withdrawing group that does not have an unshared electron pair at the &#x3b1;-position thereof. 

Growing community of inventors

Fukuoka, Japan

Keiro Nasu