Idemitsu Kosan Company, Limited

Ryoji Maeda

Kazuki Nishimura

Masato Nakamura

Tasuku Haketa

Satomi Tasaki

Yuki Nakano

Yongguk Lee

Hidetsugu Ikeda

Kei Yoshida

Masahide Matsuura

Yuichiro Kawamura

Masatoshi Saito

Taro Yamaki

Tetsuya Masuda

Hiroaki Itoi

Hiroaki Toyoshima

A compound of the following formula (1) and others. Rto R, Rto R, Aand Aare as defined in the specification, n is an integer of 0 to 3, when Ais an (n+1)-valent residue of benzene, n is an integer of 1 or more, and when n is 0, (A)is a hydrogen atom.

Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device

An organic electroluminescence device includes: an anode; a cathode; a first emitting layer, and a second emitting layer, in which the first emitting layer includes a first host material in a form of a first compound represented by a formula (1), the second emitting layer includes a second host material in a form of a second compound represented by a formula (2) and having at least one group represented by a formula (21), and the first emitting layer is in direct contact with the second emitting layer.

Organic electroluminescent element and electronic device

An organic electroluminescence device includes: a first emitting layer disposed between an anode and a cathode; a second emitting layer disposed between the first emitting layer and the cathode; and an electron blocking layer disposed between the first emitting layer and the anode, in which the first emitting layer and the second emitting layer are in direct contact with each other; the first emitting layer and the electron blocking layer are in direct contact with each other; the first emitting layer includes a first compound represented by a formula (1) below; the first compound includes at least one group represented by a formula (11) below; the second emitting layer includes a second compound represented by a formula (2); the electron blocking layer includes a third compound; and the third compound satisfies a formula (M1) below. 

Organic electroluminescent element emitting light at high luminous effiency and electronic device

An organic electroluminescence device comprising: an anode, a cathode, and an emitting region between the anode and the cathode, wherein the emitting region comprises a first emitting layer and a second emitting layer, the first emitting layer and the second emitting layer are directly adjacent to each other, the first emitting layer is between the anode and the second emitting layer, and one of the first emitting layer and the second emitting layer comprises a compound having at least one deuterium atom.

Organic electroluminescence device and electronic apparatus

A mixture contains a first compound and a second compound, in which the first compound has at least one of a first cyclic structure represented by a formula (11) below and a second cyclic structure represented by a formula (12) below, and the second compound is a compound represented by a formula (21) or a compound represented by a formula (22) below, and a total mass Mof the first and second compounds and a mass Mof the second compound in the mixture satisfy a relationship of a numerical formula (Numerical Formula 1) below, 

Mixture, organic electroluminescence device and electronic equipment

A mixture contains a first compound and a second compound, in which the first compound has at least one of a first cyclic structure represented by a formula (11) below and a second cyclic structure represented by a formula (12) below, and the second compound is a compound represented by a formula (21) or a compound represented by a formula (22) below, and a total mass MT of the first and second compounds and a mass Mof the second compound in the mixture satisfy a relationship of a numerical formula (Numerical Formula 1) below, 

A specified indenopyrene compound containing a disubstituted amino group substituted with a group having a carbon number of from 1 to 40, which is a useful indenopyrene compound as an organic electronics material, and in particular, an indenopyrene compound which when used for organic thin film solar cells, displays a photoelectric conversion characteristic with high efficiency, is provided.

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Sodegaura, Japan

Ryoji Maeda