Semiconductor Energy Laboratory Co., Ltd.

Sachiko Kawakami

Satoshi Seo

Nobuharu Ohsawa

Tsunenori Suzuki

Harue Nakashima

Ryoji Nomura

Hiroko Nomura

Masakazu Egawa

Harue Osaka

Satoko Shitagaki

Hiroki Suzuki

Hiroshi Kadoma

Naoaki Hashimoto

Kumi Kojima

Yusuke Takita

Tatsuyoshi Takahashi

Takahiro Ushikubo

Kyoko Takeda

Hiromi Seo

Hiromi Nowatari

Daisuke Kubota

Tetsuji Ishitani

Daisuke Kumaki

Kaori Ogita

Yuko Kawata

Tomohiro Tamura

Anna Tada

Hiroko Murata

Hideko Inoue

Yasuhiro Niikura

Yoshimi Ishiguro

Junichiro Sakata

Hisao Ikeda

Takahiro Yamamoto

Toshiki Sasaki

Takao Hamada

Makoto Ikenaga

Gen Fujii

Akio Yamashita

Takako Takasu

Erika Takahashi

Erumu Kikuchi

Takumu Okuyama

Takuya Haruyama

Nozomi Komatsu

Ryo Hatsumi

Yuji Iwaki

Taisuke Kamada

Yasushi Kitano

Momoko Kato

Tsuneori Suzuki

Yui Yoshiyasu

Rina Shimazaki

Kanata Abe

To provide a novel photoelectric conversion device that is highly convenient, useful, or reliable. The photoelectric conversion device includes a first electrode, a second electrode, and a first unit. The first unit is located between the first electrode and the second electrode. The first unit contains a first electron-donating material and a first electron-accepting material. The first electron-donating material is a condensed aromatic compound, and the first electron-accepting material has a perylene skeleton and two or more alkyl groups. The alkyl groups each independently have 1 to 13 carbon atoms.

Photoelectric conversion device and optical functional device

A novel light-emitting device is provided. A light-emitting device with a long lifetime is provided. The light-emitting device includes an anode, a cathode, and an EL layer. The light-emitting layer is positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The light-emitting layer contains a first organic compound, a second organic compound, and an emission center substance. The combination of the first organic compound and the second organic compound can form an exciplex. The electron-transport layer contains an organic compound represented by General Formula (G1) below. (Note that in General Formula (G1) below, Ar1 represents a benzoquinolyl group or a benzoisoquinolyl group, and Ar2 represents a triphenylenylnaphthylene group or a naphthylenyltriphenylene-diyl group.)

Light-emitting device, light-emitting apparatus, electronic device, and lighting device

To provide a light-emitting element having high luminous efficiency and to provide a light-emitting device and an electronic device which consumes low power and is driven at low voltage, a carbazole derivative represented by the general formula (1) is provided. In the formula, α, α, α, and αeach represent an arylene group having less than or equal to 13 carbon atoms; Arand Areach represent an aryl group having less than or equal to 13 carbon atoms; Rrepresents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and Rrepresents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, n, and n are each independently 0 or 1.

Carbazole derivative, and light-emitting element, light-emitting device, and electronic device using carbazole derivative

A novel light-emitting element is provided. A light-emitting element with a long lifetime is provided. A light-emitting element with high emission efficiency is provided. A novel organic compound is provided. A novel organic compound having a hole-transport property is provided. A novel hole-transport material is provided. A hole-transport material including an organic compound having a substituted or unsubstituted benzonaphthofuran skeleton and a substituted or unsubstituted amine skeleton is provided. A light-emitting element using the hole-transport material is provided. An organic compound in which an amine skeleton including two aromatic hydrocarbon groups having 6 to 60 carbon atoms is bonded to the 6- or 8-position of the benzonaphthofuran skeleton is provided.

Light-emitting element, light-emitting device, electronic device, and lighting device

A novel organic compound is provided. A novel organic compound having a hole-transport property is provided. A novel hole-transport material is provided. A novel light-emitting element is provided. Alight-emitting element with a favorable lifetime is provided. A light-emitting element with favorable emission efficiency is provided. An organic compound having a substituted or unsubstituted benzonaphthofuran skeleton, a substituted or unsubstituted carbazole skeleton, and a substituted or unsubstituted amine skeleton is provided. Alternatively, a light-emitting element that uses the hole-transport material is provided.

Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device

A novel mixed material for a light-emitting device with improved heat resistance is provided. The mixed material for a light-emitting device includes a first heteroaromatic compound and a second heteroaromatic compound. The first heteroaromatic compound includes a first heteroaromatic ring. The first heteroaromatic ring includes a ring including two or more nitrogen atoms and any one of a benzene ring and a pyridine ring or a ring including a diazine ring or a triazine ring. The second heteroaromatic compound includes a second heteroaromatic ring. The second heteroaromatic ring includes a ring including two or more nitrogen atoms and any one of a benzene ring and a pyridine ring or a ring including a diazine ring or a triazine ring. A structure of the first heteroaromatic ring is different from a structure of the second heteroaromatic ring.

Mixed material for light-emitting device

An organic compound has a benzonaphthofuran skeleton and is represented by General Formula (G1). In General Formula (G1), A represents a pyrene skeleton. In the case where the pyrene skeleton has a substituent, the substituent is a diarylamino group including two substituted or unsubstituted aryl groups each having 6 to 13 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, an alkyl group having 1 to 7 carbon atoms, a substituted or unsubstituted monocyclic saturated hydrocarbon group having 3 to 20 carbon atoms, or a substituted or unsubstituted polycyclic saturated hydrocarbon group having 7 to 10 carbon atoms. The two aryl groups of the diarylamino group may be the same or different. In X1 represented by General Formula (G1-1), one of R6 and R7 is bonded to N in General Formula (G1), and the other of R6 and R7 represents an alkyl group having 1 to 7 carbon atoms, a substituted or unsubstituted monocyclic saturated hydrocarbon group having 3 to 20 carbon atoms, or a substituted or unsubstituted polycyclic saturated hydrocarbon group having 7 to 10 carbon atoms.

An object of one embodiment of the present invention is to provide a novel organic compound. The organic compound is a triarylamine derivative. The triarylamine derivative has an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.

Organic compound, light-emitting element, light-emitting device, electronic device, display device, and lighting device

A light-emitting device, an electronic device, or a lighting device with low power consumption and high reliability is provided. The light-emitting device includes a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element. The first to fourth light-emitting elements include the same EL layer between an anode and a cathode. The EL layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer contains a fluorescent substance. The peak wavelength of an emission spectrum of the fluorescent substance in a toluene solution of the fluorescent substance is 440 nm to 460 nm, preferably 440 nm to 455 nm. The second light-emitting layer contains a phosphorescent substance. The first light-emitting element exhibits blue emission. The second light-emitting element exhibits green emission. The third light-emitting element exhibits red emission. The fourth light-emitting element exhibits yellow emission.

Light-emitting device, electronic device, and lighting device

A novel organic compound having an emission spectrum peak at a wavelength longer than 850 nm and an absorption spectrum peak at a wavelength longer than 600 nm is provided. The organic compound is represented by General Formula (G1). In General Formula (G1), Arto Areach independently represent an aryl group having 6 to 13 carbon atoms in a ring. Rto Reach independently represent anyone of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an aryl group having 6 to 13 carbon atoms in a ring, and a heteroaryl group having 3 to 13 carbon atoms in a ring. Qand Qeach independently represent a group having a carbazole skeleton or a group having a triarylamine skeleton and having 18 to 30 carbon atoms in a ring. Furthermore, m and n each independently represent 0 or 1.

Organic compound, light-emitting device, light-emitting apparatus, electronic device, and lighting device

An organic compound with high heat resistance is provided. A light-emitting device with high emission efficiency and high reliability is provided. An organic compound represented by General Formula (G0) is provided. In General Formula (G0), any one of Rto Rrepresents General Formula (A), and each of the others of Rto R, Rto R, Rto R, Rto R, and Rto Rindependently represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. Rand Rmay be bonded to each other to form a spiro ring. 

Organic compound, light-emitting device, light-receiving device, light-emitting apparatus, light-emitting module, electronic device, and lighting device

A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of a light-emitting element is provided. A novel light-emitting element with high emission efficiency and high heat resistance is provided. A heterocyclic compound represented by General Formula (G). A represents any of a dibenzothiophenyl group, a dibenzofuranyl group, and a carbazolyl group. DBq represents a dibenzo[f,h]quinoxalinyl group. In addition, n is 0 or 1. Each of Arto Arindependently represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms. In Arto Ar, the adjacent arylene groups may be bonded to each other to form a ring. When the adjacent arylene groups in Arto Arform a fluorene skeleton, the fluorene skeleton may have a substituent. 

Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device

It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms. 

Anthracene derivative, light emitting element using the same, and light emitting device using the same

An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (8) are provided. Further, by use of the anthracene derivative represented by the general formula (1), a light-emitting element with high emission efficiency can be obtained. Furthermore, by use of the anthracene derivative represented by the general formula (1), a light-emitting element that emits blue light with high color purity can be obtained. 

Organic compound, anthracene derivative, and light-emitting element, light-emitting device, and electronic device in which the anthracene derivative is used

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Kanagawa, Japan

Sachiko Kawakami