Semiconductor Energy Laboratory Co., Ltd.

Tomoya Yamaguchi

Satoshi Seo

Hideko Inoue

Hiromi Seo

Tatsuyoshi Takahashi

Hiromitsu Kido

Hideko Yoshizumi

Kunihiko Suzuki

Miki Kanamoto

Satoko Shitagaki

Takahiro Ushikubo

Hiromi Nowatari

Yui Yamada

Yuta Kawano

Takeyoshi Watabe

Hiroki Suzuki

Tomoka Nakagawa

Airi Ueda

Satomi Watabe

Shunpei Yamazaki

Toshiki Sasaki

Yasushi Kitano

Airi Tomida

Keito Fukuda

An organic compound with high heat resistance is provided. A novel organic compound that can be used for a light-emitting device that emits red light or near-infrared light is provided. An organic compound represented by General Formula (G0) is provided. In General Formula (G0), Q represents oxygen or sulfur, Ar1 represents a substituted or unsubstituted fused aromatic ring, R1 and R2 each independently represent hydrogen or a group with 1 to 100, inclusive, carbon atoms in total, and at least one of R1 and R2 has a hole-transport skeleton or a fused ring.

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

Providing a novel organometallic complex represented by Structure Formula (G1). Ato Aindependently represent an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms. Rto Rindependently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and a cyano group, wherein at least one of Rto Rrepresents a cyano group. Rto Rindependently represent an alkyl group having 2 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms. Rand Rindependently represent any one of hydrogen, a methyl group, and an ethyl group. Note that Rand Rmay be bonded to each other to form a ring, and Rand Rmay be bonded to each other to form a ring.

Organometallic complex, light-emitting material for top emission, light-emitting device, light-emitting apparatus, electronic device, and lighting device

As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a β-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, Rto Reach represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.

Organometallic complex, light-emitting element, light-emitting device, electronic device, and lighting device

A novel compound and a light-emitting element with high emission efficiency and a long lifetime are provided. The novel compound includes a benzofuropyrazine skeleton or a benzothienopyrazine skeleton, and each of a benzene ring and a pyrazine ring in the benzofuropyrazine skeleton or the benzothienopyrazine skeleton independently includes a substituent with a total number of carbon atoms of 6 to 100 inclusive. The light-emitting element includes the compound.

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

A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton. In General Formula (G1), Q represents O or S, at least one of Rto Rrepresents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of Rto Reach independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.

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

A novel organic compound is provided. The organic compound is represented by General Formulae (G1), (u1), and (g1), where Ar represents a substituted or unsubstituted condensed aromatic ring, one of Rand Rrepresents a group represented by General Formula (u1), and any one of Rto Rrepresents a bond. In addition, A is a group represented by General Formula (g1), and B represents a substituted or unsubstituted phenyl group. Moreover, n is an integer of 0 to 2, and Qand Qindependently represent an oxygen atom or a sulfur atom.

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

A novel light-emitting element material is provided. Alternatively, a light-emitting element material capable of simplifying a process for manufacturing a light-emitting element is provided. Alternatively, a light-emitting element material capable of reducing the cost for manufacturing a light-emitting element is provided. Alternatively, one embodiment of the present invention provides a light-emitting element material capable of achieving a light-emitting element having favorable emission efficiency. A light-emitting element material including an organic compound which includes a first skeleton having a carrier-transport property and a second skeleton having a light-emitting property in one molecule and in which the molecular weight is less than or equal to 3000, is provided.

Light-emitting element material, light-emitting element, light-emitting device, electronic device, lighting device, and organometallic complex

To provide a light-emitting device not only including a light-emitting layer in which energy is efficiently transferred from a host material to a guest material but also having high reliability. In the light-emitting device, the light-emitting layer includes an organic compound having a specific naphthofuropyrazine skeleton as a host material and a light-emitting substance (e.g., an organometallic complex) whose T1 level (T) is within a certain range as a guest material, thereby increasing not only the efficiency of energy transfer from the host material to the guest material but also the reliability.

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

A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. The organic compound has a benzofuroquinoxaline skeleton or a benzothienoquinoxaline skeleton. The organic compound is represented by General Formula (G1).  In the formula, Q represents O or S, and each of R1 to R8 independently represents any of hydrogen, a halogeno group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. At least one of R1 to R8 includes a substituted or unsubstituted condensed aromatic or heteroaromatic ring having 3 to 24 carbon atoms.

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

As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a &#x3b2;-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, Rto Reach represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms. 

A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. The organic compound has a benzofuroquinoxaline skeleton or a benzothienoquinoxaline skeleton. The organic compound is represented by General Formula (G1). In the formula, Q represents O or S, and each of R1 to R8 independently represents any of hydrogen, a halogeno group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. At least one of R1 to R8 includes a substituted or unsubstituted condensed aromatic or heteroaromatic ring having 3 to 24 carbon atoms.

A light-emitting element with a light-emitting substance comprising an organometallic complex. The organometallic complex having a structure represented by General Formula (G0). In the formula, X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, Rand R2 each represent an alkyl group having 1 to 6 carbon atoms. 

An organometallic iridium complex that has high emission efficiency and a long lifetime and emits deep red light (emission wavelength: around 700 nm) is provided. The organometallic iridium complex has a ligand that is represented by General Formula (G0) and has at least a dimethyl phenyl group and a quinoxaline skeleton.  In the formula, Rto Rseparately represent an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a phenyl group having an alkyl group having 1 to 6 carbon atoms as a substituent.

Organometallic iridium complex, light-emitting element, light-emitting device, and lighting device

As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency is provided. The organometallic complex includes a metal and a ligand. The metal is iridium or platinum. The ligand includes a 5H-pyrimido[5,4-b]indole skeleton and an aryl group bonded to the 4-position of the 5H-pyrimido[5,4-b]indole skeleton. The 3-position of the 5H-pyrimido[5,4-b]indole skeleton and the aryl group are bonded to the metal. In the formula, M represents iridium or platinum. In addition, Ar represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and each of Rto Rindependently represents hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms.

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Kanagawa, Japan

Tomoya Yamaguchi