cas 937082-81-0, 9-(4-Bromophenyl)-9-phenylfluorene

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COMPOUND FOR ORGANIC OPTOELECTRONIC DEVICE AND ORGANIC OPTOELECTRONIC DEVICE AND DISPLAY DEVICE
A compound for an organic optoelectronic device, an organic optoelectronic device, and a display device including the same, the compound being represented by Chemical Formula 1:
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(2021/03/13)

Fluorene-containing compound and application thereof
The invention discloses a fluorene-containing compound and an application thereof. The compound has the structure shown in the general formula (1). The compound has higher glass transition temperatureand molecular heat stability, proper HOMO and LUMO ener
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(2018/04/21)

Fluorene-based organic compound and application thereof on OLED device
The invention relates to a fluorene-based organic compound and application thereof on an OLED device. A structure of the compound is that fluorine is connected with a hexatomic ring structure of a benzo hexatomic ring through a carbon-carbon bond, so that material chemical stability is improved and active positions of a branch chain radical are prevented from being exposed through the carbon-carbon bond connection; the whole molecule is a relatively great rigid structure, and has relatively high triplet-state energy level (T1); moreover, steric hindrance is great, rotation is not liable to occur and the three-dimensional space structure is more stable, so that the compound has a relatively high glass transition temperature and relatively high molecule thermal stability; besides, distribution positions of HOMO and LUMO of the compound are separated from each other, so that the fluorene-based organic compound has proper HOMO and LUMO energy level; and after the compound is applied to theOLED device, light-emitting efficiency of the device can be effectively improved, and the service life of the device can be effectively prolonged.
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(2018/03/26)

Fluorene-containing organic compound and application thereof on OLED (organic light emitting diode) device
The invention discloses a fluorene-containing organic compound and an application thereof on an OLED (organic light emitting diode) device. The organic compound has the structure shown in the generalformula (1). The compound has higher glass transition temperature and molecular heat stability, proper HOMO and LUMO energy levels and higher Eg, the photoelectric property of an OLED device can be effectively improved and the service life of the OLED device can be effectively prolonged through structure optimization of the device.
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Paragraph 0083; 0084; 0085; 0088; 0094; 0095; 0096-0098

(2018/04/21)

ORGANIC COMPOUND AND LIGHT-EMITTING DEVICE
PROBLEM TO BE SOLVED: To provide a light-emitting element with satisfactory light emission efficiency without using rare metal as a light-emitting material. SOLUTION: A light-emitting element has a first electrode, a second electrode, a layer containing a
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(2019/02/16)

COMPOSITE MATERIAL, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
A composite material including an organic compound and an inorganic compound and having a high carrier-transport property is provided. A composite material having a high carrier-injection property to an organic compound is provided. A composite material in which light absorption due to charge transfer interaction is unlikely to occur is provided. A light-emitting element having high emission efficiency is provided by including the composite material. A light-emitting element having a low drive voltage is provided. A light-emitting element having a long lifetime is provided. A composite material including a heterocyclic compound having a dibenzothiophene skeleton or a dibenzofuran skeleton and an inorganic compound exhibiting an electron-accepting property with respect to the heterocyclic compound is provided.
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Page/Page column 112; 113

(2017/06/27)

Organic compound, organic optoelectric device and display device
The invention relates to an organic compound, an organic optoelectric device and a display device. An organic compound represented by Chemical Formula 1, an organic optoelectric device including the organic compound, and a display device including the org
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Paragraph 0196; 0209; 0212; 0213

(2017/09/13)

ORGANIC COMPOUND AND LIGHT-EMITTING ELEMENT
PROBLEM TO BE SOLVED: To provide a light-emitting element which achieves good luminous efficiency without using rare metal as a luminescence material. SOLUTION: A light-emitting element comprises a first electrode, a second electrode and layers which are
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(2017/08/29)

Phenanthrene compd., light-emitting element, the light emitting device, an illumination device and electronic device
A novel compound having high triplet excitation energy and a bipolar property is provided. Specifically, a phenanthrene compound represented by General Formula (G1) is provided where R11 to R19 and R21 to R27 separately represent any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and Z represents a sulfur atom or an oxygen atom. The use of the phenanthrene compound as a host material of a light-emitting layer in the presence of a phosphorescent dopant allows the formation of a light-emitting element with high current efficiency.
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Paragraph 0245-0249

(2016/10/10)

Organic compound for optoelectric device and composition for optoelectric device and organic optoelectric device and display device
Disclosed are a first compound for an organic optoelectric device represented by a combination of Chemical Formula I -1 and Chemical Formula I -2 and a composition for an organic optoelectric device including the first compound for an organic optoelectric device and at least one second compound for an organic optoelectric device having a moiety represented by Chemical Formula II, and an organic optoelectric device and a display device including the same. The detailed descriptions of the Chemical Formula I -1, Chemical Formula I -2 and Chemical Formula II are the same as described in the detailed description. According to the invention, the organic optoelectric device with high efficiency and long usage life can be obtained.
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Paragraph 0210; 0214; 0215

(2016/10/09)

COMPOUND, ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
The present invention relates to a compound represented by chemical formula 1, an organic optoelectronic device comprising the same, and a display device comprising the organic optoelectronic device. In the chemical formula 1, L^1 to L^3 and R^1 to R^7 are the same as described in the specification.COPYRIGHT KIPO 2016
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(2016/10/10)

NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be used in a light-emitting layer and
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(2015/06/18)

ELECTRON TRANSPORT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
The present invention relates to an electron transport material and an organic electroluminescent device comprising the material in an electron transport layer. Tthe compounds according to the present invention as an organic electron transport material ha
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(2015/11/23)

FLUORENE-BASED COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
The present invention relates to a fluorene-based compound and an organic light emitting device including the same. In chemical formula 1, if X is O, S, NR_(16), or CR_(17)R_(18), and X is O, S, or CR_(17)R_(18), at least one from R_11 to R_14 is -(L_2)p-
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(2016/10/10)

Triazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device and Lighting Device Using the Triazole Derivative
Objects are to provide the following: a substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having high emission efficiency using the substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having low driving voltage; and a light-emitting device, an electronic device, and a lighting device having low power consumption. Provided is a triazole derivative in which a dibenzothiophen-4-yl or dibenzofuran-4-yl group represented by General Formula (G2) is bonded to any one of Ar1 to Ar3 of a triazole derivative represented by General Formula (G1). In the formulas, A represents oxygen or sulfur, Ar1 to Ar3 separately represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R1 to R7 separately represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
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Paragraph 0252; 0253; 0254; 0255; 0256

(2015/07/22)

Carbazole compound, light-emitting element material, organic semiconductor material, light-emitting element, light emitting device, lighting device, and electronic device
An object is to provide a novel carbazole compound that can be used for a transport layer, a host material, or a light-emitting material in a light-emitting element. A carbazole compound where nitrogen of a carbazole group, the carbazole skeleton of which whose 3-position is bonded to the 4-position of a dibenzofuran skeleton or a dibenzothiophene skeleton, is bonded to a benzimidazole skeleton through a phenylene group, is provided. The carbazole compound has a high carrier-transport property, and can be suitably used for a material for a light-emitting element or for an organic semiconductor material.
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(2014/05/06)

Benzoxazole derivative, light-emitting element, light-emitting device, electronic device, and lighting device
A novel benzoxazole derivative having high excitation energy, particularly high triplet excitation energy is provided. A light-emitting element having high current efficiency is provided by application of the novel benzoxazole derivative for the light-emitting element. A light-emitting device, an electronic device, and a lighting device each having reduced power consumption are provided. The benzoxazole derivative is represented by General Formula (G1). In the formula, R11 to R14 and R21 to R27 separately represent any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and Z represents either a sulfur atom or an oxygen atom.
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Page/Page column 99; 100

(2013/10/08)

Palladium-catalyzed direct arylation of C-H bond to construct quaternary carbon centers: The synthesis of diarylfluorene
A novel Pd-catalyzed C-H functionalization reaction was developed to construct a quaternary carbon center with high yield. This reaction provides an efficient method for the synthesis of 9,9′-diarylfluorenes by direct arylation of monoarylfluorene.
Cao, Xiao,Yang, Weidong,Liu, Chao,Wei, Fuliang,Wu, Kun,Sun, Wei,Song, Juan,Xie, Linghai,Huang, Wei
supporting information
p. 3102 - 3105
(2013/07/26)

HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
Provided is a novel heterocyclic compound which can be used as a host material for dispersing a light-emitting material in a light-emitting layer of a light-emitting element. Further provided is a light-emitting element which is driven at a low voltage and has high current efficiency. By including the light-emitting element, a light-emitting device, an electronic device, and a lighting device each with reduced power consumption are provided. The light-emitting element contains a compound in which a dibenzo[f,h]quinoline ring and a hole-transport skeleton are bonded through an arylene group. The light-emitting device, the electronic device, and the lighting device each including the light-emitting element are provided. The light-emitting element contains a heterocyclic compound having a structure represented by the following general formula (G1).
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Page/Page column

(2013/03/26)

Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device and Lighting Device
Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
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(2012/05/04)

Benzoxazole Derivative, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
A novel benzoxazole derivative having high excitation energy, particularly high triplet excitation energy is provided. A light-emitting element having high current efficiency is provided by application of the novel benzoxazole derivative for the light-emi
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(2012/06/16)

Composite Material, Light-Emitting Element, Light-Emitting Device, Lighting Device, Electronic Device, and Fluorene Derivative
Provided is a composite material which makes it possible to provide a light-emitting element having at least one of the following characteristics by applying the composite material to the light-emitting element: low voltage driving, high emission efficien
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(2012/08/08)

Triazole Derivative, Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device and Lighting Device
A substance that facilitates hole injection and has high triplet excitation energy is provided. A light-emitting element having high emission efficiency is provided. A light-emitting element driven with a low voltage is provided. Or a light-emitting element having a long lifetime is provided. Provided is a light-emitting element including a triazolo[4,3-f]phenanthridine derivative or a triazolo[3,4-a]isoquinoline derivative. Provided is a triazolo[4,3-f]phenanthridine and triazolo[3,4-a]isoquinoline derivatives, which are novel and can be used for the light-emitting element.
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(2012/02/06)

Organometallic Complex, and Light-Emitting Element and Display Device Using the Organometallic Complex
An object is to provide a novel organometallic complex capable of phosphorescence and having high heat resistance. Alternatively, an object is to provide a light-emitting device with high added value. The objects are achieved by providing an organometallic complex which has a structure represented by a general formula (G1) or (G2) below and is formed in such a way that a corresponding one of pyrazine derivatives represented by general formulae (G0) and (G0′) below is ortho-metalated by a Group 9 or Group 10 metal ion, or by providing a light-emitting element and a light-emitting device including the organometallic complex.
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(2012/05/07)

Carbazole Compound, Light-Emitting Element Material, Organic Semiconductor Material, Light-Emitting Element, Light-Emitting Device, Lighting Device, and Electronic Device
An object is to provide a novel carbazole compound that can be used for a transport layer, a host material, or a light-emitting material in a light-emitting element. A carbazole compound where nitrogen of a carbazole group, the carbazole skeleton of which whose 3-position is bonded to the 4-position of a dibenzofuran skeleton or a dibenzothiophene skeleton, is bonded to a benzimidazole skeleton through a phenylene group, is provided. The carbazole compound has a high carrier-transport property, and can be suitably used for a material for a light-emitting element or for an organic semiconductor material.
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(2012/06/16)

Carbazole Derivative, Light-Emitting Element Material and Organic Semiconductor Material
An object is to provide a novel carbazole derivative that has an excellent carrier-transport property and can be suitably used for a transport layer or as a host material of a light-emitting element. Another object is to provide an organic semiconductor material and a light-emitting element material each using the carbazole derivative. As the carbazole derivative that can achieve the above objects, a carbazole derivative in which a carbazolyl group whose either 2- or 3-position of carbazole is substituted by the 4-position of a dibenzothiophene skeleton or a dibenzofuran skeleton is bonded to aromatic hydrocarbon that has 14 to 70 carbon atoms and includes a condensed tricyclic ring, a condensed tetracyclic ring, a condensed pentacyclic ring, a condensed hexacyclic ring, or a condensed heptacyclic ring has been able to be synthesized.
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Page/Page column 265

(2012/04/04)

ORGANOMETALLIC COMPLEX, AND LIGHT-EMITTING ELEMENT AND DISPLAY DEVICE USING THE ORGANOMETALLIC COMPLEX
An object is to provide an organometallic complex whose phosphorescence characteristics can be adjusted by varying the structure of a ligand. Alternatively, an object is to provide an organometallic complex capable of emitting yellow phosphorescence with high luminance. Alternatively, an object is to provide a light-emitting device with high added value. An organometallic complex which has a structure represented by a general formula (G1) below and at least one substituent group represented by a general formula (G2) below as a phenyl group and is formed in such a way that a phenylpyrazine derivative represented by a general formula (G0) below is ortho-metalated by an ion of a Group 9 metal or of a Group 10 metal is provided. Alternatively, a light-emitting element and a light-emitting device formed including the organometallic complex are provided.
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Page/Page column 40-41

(2012/04/23)

Oxadiazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using the Oxadiazole Derivative
An object of one embodiment of the present invention is to provide a novel oxadiazole derivative as a substance having high excitation energy, in particular, a substance having high triplet excitation energy. One embodiment of the present invention is an oxadiazole derivative represented by General Formula (G1) below. In General Formula (G1), R1 represents either an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. In General Formula (G1), R21 to R27 separately represent any one of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. In General Formula (G1), α represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms. In General Formula (G1), Z represents either a sulfur atom or an oxygen atom.
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Page/Page column 61

(2012/06/01)

Benzo[b]Naphtho[1,2-d]Furan Compound as Light-Emitting Element Material
Provided is a benzo[b]naphtho[1,2-d]furan compound having a wide band gap which gives excellent color purity of blue. Further provided are a light-emitting element, a light-emitting device, and an electronic device each of which uses the benzo[b]naphtho[1,2-d]furan compound and is highly reliable. A benzo[b]naphtho[1,2-d]furan compound represented by a general formula (G1) is provided. In the general formula (G1), An represents an anthryl group represented by a general formula (An-1) or (An-2) below, α1 and α2 separately represent a substituted or unsubstituted phenylene group represented by any one of general formulae (α-1) to (α-3) below, and R1 to R9 separately represent either hydrogen or an alkyl group having 1 to 4 carbon atoms. Further, in the general formula (G1), n and m separately represent 0 or 1.
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Page/Page column 44

(2012/07/13)

Organic Light-Emitting Element, Organometallic Complex, Light-Emitting Device, Electronic Appliance, and Lighting Device
Disclosed is a phosphorescent organometallic complex having: a 6-membered aromatic heterocycle having a nitrogen atom; iridium or platinum to which the nitrogen atom coordinates; and an aryl group which is bonded to an α-carbon of the nitrogen atom and is ortho-metalated with the iridium or platinum, where at least one of the aromatic heterocycle and the aryl group has an alicyclic hydrocarbon having an intramolecular carbon-carbon bridged bond as a substituent. The ability of the bulky structure of the alicyclic hydrocarbon to inhibit aggregation of the organometallic complex, concerted with the strong electron-donating property of the alicyclic hydrocarbon to the aromatic heterocycle or the aryl group, contributes to the increase in absorption coefficient and phosphorescent efficiency of the organometallic complex. The improved absorption coefficient and the phosphorescent efficiency allow the formation of a light-emitting element with excellent external quantum efficiency over 25%.
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Page/Page column 43

(2012/10/23)

TRIAZOLE DERIVATIVE, HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE AND LIGHTING DEVICE
A substance that facilitates hole injection and has high triplet excitation energy is provided. A light-emitting element having high efficiency or a long lifetime is provided. A light-emitting element driven with a low voltage is provided. Provided is a light-emitting element including triazolo[4,3-f]phenanthridine derivative (G0) or a triazolo[3,4-a]isoquinoline derivative (G4). Provided are triazolo[4,3-f]phenanthridine(G0) and triazolo[3,4-a]isoquinoline(G4) derivatives, which are novel and can be used for the light-emitting element. [wherein E, Ar, A, and X have the designation cited in claims.]
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Page/Page column 235-237

(2012/02/15)

ORGANOMETALLIC COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE AND LIGHTING DEVICE
Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.
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Page/Page column 223-224

(2012/05/05)

Carbazole Compound, Material for Light-Emitting Element, Organic Semiconductor Material, Light-Emitting Element
To provide a novel carbazole compound that has an excellent carrier-transport property and can be used for a transport layer or as a host material in a light-emitting element. Further, to provide an organic semiconductor material and a material for a ligh
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(2012/04/23)

Carbazole Compound, Light-Emitting Element Material, Organic Semiconductor Material, Light-Emitting Element, Light-Emitting Device, Lighting Device, and Electronic Device
A carbazole compound in which the 2-position of a dibenzofuran skeleton or a dibenzothiophene skeleton is bonded to the 3-position of a carbazole skeleton and nitrogen of the carbazolyl group is bonded to the 9- or 10-position of an anthracene skeleton di
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(2012/05/07)

Phenanthrene Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
A novel compound having high triplet excitation energy and a bipolar property is provided. Specifically, a phenanthrene compound represented by General Formula (G1) is provided where R11 to R19 and R21 to R27 se
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(2012/05/07)

Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
A substance having a hole-transport, property and a wide band gap is provided. A heterocyclic compound represented by a general formula (G1) is provided. In the formula, α1 and α2 separately represent a substituted or unsubstituted arylene group having 6 to 13 carbon atoms; n and k separately represent 0 or 1; Q1 and Q2 separately represent sulfur or oxygen; and R1 to R22 separately represent hydrogen, an alkyl group having 1 to 12 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 14 carbon atoms.
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(2012/03/27)

Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device and Lighting Device
Objects of the present invention are to provide the following: a novel heterocyclic compound which can be used as a material in which a light-emitting substance of a light-emitting layer in a light-emitting element is dispersed; a novel heterocyclic compound having a high electron-transport property; a light-emitting element having high current efficiency; and a light-emitting device, an electronic device and a lighting device each having reduced power consumption. Provided are a heterocyclic compound represented by General Formula (G1-1) or (G1-2) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device each including the heterocyclic compound. Such use of the heterocyclic compound represented by General Formula (G1-1) or (G1-2) makes it possible to provide a light-emitting element having high current efficiency, and a light-emitting device, an electronic device and a lighting device each having reduced power consumption.
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(2011/06/28)

HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
An object is to provide a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. Other objects are to provide a light-emitting element having low driving voltage, a light-emitting element having high current efficiency, and a light-emitting element having a long lifetime. Provided are a light-emitting element including a compound in which a dibenzo[f,h]quinoxaline ring and a hole-transport skeleton are bonded through an arylene group, and a light-emitting device, an electronic device, and a lighting device each using this light-emitting element. The heterocyclic compound represented by General Formula (G1) below is provided.
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(2011/09/20)

Triazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device and Lighting Device Using the Triazole Derivative
Objects are to provide the following: a substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having high emission efficiency using the substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having low driving voltage; and a light-emitting device, an electronic device, and a lighting device having low power consumption. Provided is a triazole derivative in which a dibenzothiophen-4-yl or dibenzofuran-4-yl group represented by General Formula (G2) is bonded to any one of Ar1 to Ar3 of a triazole derivative represented by General Formula (G1). In the formulae, A represents oxygen or sulfur, Ar1 to Ar3 separately represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R1 to R7 separately represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
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(2011/12/12)

Fluorene Derivative, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
An object is to provide a new fluorene derivative as a good light-emitting material for organic EL elements. A fluorene derivative represented by General Formula (G1) is provided. In the formula, R1 to R8 separately represent a hydro
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Page/Page column 55-56

(2011/05/05)

benzimidazol-2-yl-phenyl compound, light-emitting element, light-emitting device, electronic device, and lighting device
Objects of the present invention are to provide the following: a novel heterocyclic compound which can be used as a material in which a light-emitting substance of a light-emitting layer in a light-emitting element is dispersed; a novel heterocyclic compound having a high electron-transport property; a light-emitting element having high current efficiency; and a light-emitting device, an electronic device and a lighting device each having reduced power consumption. Provided are a heterocyclic compound represented by General Formula (G1-1) or (G1-2) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device each including the heterocyclic compound. Such use of the heterocyclic compound represented by General Formula (G1-1) or (G1-2) makes it possible to provide a light-emitting element having high current efficiency, and a light-emitting device, an electronic device and a lighting device each having reduced power consumption.
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Page/Page column 72-73

(2011/09/12)

Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
An object is to provide a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. Other objects are to provide a light-emitting element having low driving voltage, a light-emitting element having high current efficiency, and a light-emitting element having a long lifetime. Provided are a light-emitting element including a compound in which a dibenzo[f,h]quinoxaline ring and a hole-transport skeleton are bonded through an arylene group, and a light-emitting device, an electronic device, and a lighting device each using this light-emitting element. The heterocyclic compound represented by General Formula (G1) below is provided.
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Page/Page column 137-138

(2011/10/01)

Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
An object is to provide a novel organometallic complex capable of emitting phosphorescence by using, as a ligand, an organic compound with which a variety of derivatives can be easily synthesized. Another object is to provide an organometallic complex having high heat resistance. Other objects are to provide a light-emitting element having high emission efficiency and to provide a light-emitting device, an electronic device, and a lighting device having reduced power consumption. Provided are an organometallic complex including a structure represented by the following General Formula (G1), and a light-emitting element, a light-emitting device, an electronic device, and a lighting device formed using the organometallic complex including the structure represented by the following General Formula (G1).
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Page/Page column 47-48

(2011/10/13)

Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
Provided are a heterocyclic compound which emits blue light and is represented by General Formula (G1) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device which are formed using the heterocyclic compound represented by General Formula (G1) below. The use of the heterocyclic compound represented by General Formula (G1) makes it possible to provide a light-emitting element which has high emission efficiency, and also a light-emitting device, an electronic device and a lighting device which have reduced power consumption.
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Page/Page column 85-86

(2011/06/24)

Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device
Provided are a heterocyclic compound which emits blue light and is represented by General Formula (G1) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device which are formed using the heterocyclic compound represented by General Formula (G1) below. The use of the heterocyclic compound represented by General Formula (G1) makes it possible to provide a light-emitting element which has high emission efficiency, and also a light-emitting device, an electronic device and a lighting device which have reduced power consumption.
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(2011/06/10)

FLUORENE DERIVATIVE, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
An object is to provide a new fluorene derivative as a good light-emitting material for organic EL elements. A fluorene derivative represented by General Formula (G1) is provided. In the formula, R1 to R8 separately represent a hydro
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(2011/05/05)

FLUORENE DERIVATIVE, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
An object is to provide a light-emitting element having high light-emission efficiency by provision of a novel fluorene derivative as represented by General Formula (G1) below. In the formula, R1 to R8 independently represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α1 to α4 independently represent any of a substituted or unsubstituted arylene group having 6 to 12 carbon atoms. Furthermore, Ar1 and Ar2 independently represent any of an aryl group having 6 to 13 carbon atoms in a ring and Ar3 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms. J, k, m, and n each independently represent 0 or 1.
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Page/Page column 62-64

(2010/12/26)

CARBAZOLE DERIVATIVE, AND LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE USING CARBAZOLE DERIVATIVE
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, α1, α2, α3, and α4 each represent an arylene group having less than or equal to 13 carbon atoms; Ar1 and Ar2 each represent an aryl group having less than or equal to 13 carbon atoms; R1 represents 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 R2represents 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, m, and n are each independenly 0 or 1.
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Page/Page column 263-264

(2009/07/17)

Novel host material for highly efficient blue phosphorescent OLEDs
We report the synthesis and characterization of a novel silane-fluorene hybrid, triphenyl-(4-(9-phenyl-9H-fluoren-9-yl)phenyl)silane (TPSi-F), used as the host material for blue phosphorescent devices. TPSi-F is constructed by linking p-substituted tetrap
Shih, Ping-I,Chien, Chen-Han,Chuang, Chu-Ying,Shu, Ching-Fong,Yang, Cheng-Han,Chen, Jian-Hong,Chi, Yun
p. 1692 - 1698
(2008/02/04)