# US 9,040,719 B2 · Carbazole derivative, light-emitting element material, light-emitting element, light-emitting device, electronic device, and lighting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,040,719 B2 - Document ID: US9040719B2 - Status: Granted - Kind: B2 - Application number: 13/961,120 - Filed: 2013-08-07 - Published: 2013-12-05 - Granted: 2015-05-26 - Earliest claimed: 2009-03-31 - Assignees: Semiconductor Energy Laboratory Co., Ltd. - Applicants: Semiconductor Energy Laboratory Co., Ltd. - Inventors: Hiroko Nomura; Harue Osaka; Takahiro Ushikubo; Satoshi Seo - Web page: https://patentgrep.com/patent/US9040719B2 ## CPC - H10K 85/636: {comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom} - C07D 209/86: with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system - C07D 403/12: linked by a chain containing hetero atoms as chain links - C09K 11/06: containing organic luminescent materials - H05B 33/14: characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source} - H05B 33/20: characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded - H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole} - C09K 2211/1029: containing one nitrogen atom as the heteroatom - H10K 50/11: characterised by the electroluminescent [EL] layers - H10K 50/15: Hole transporting layers - H10K 85/324: {comprising aluminium, e.g. Alq3} - Y10S 428/917: Electroluminescent - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08) - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A carbazole derivative represented by the general formula (1) is provided. In the formula, Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; α and β independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms which form a ring; R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; and R11 to R17 and R21 to R28 independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring. ## Claims ### Claim 1 A light-emitting element comprising: a first electrode; a layer over the first electrode; a light-emitting layer over the layer; and a second electrode over the light-emitting layer, wherein the layer comprises a carbazole derivative represented by a general formula (1), wherein Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; α and β independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms which form a ring; R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; and R11 to R17 and R21 to R28 independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring. ### Claim 2 (depends on 1) A light-emitting device comprising: the light-emitting element according to claim 1; and means for controlling the light-emitting element. ### Claim 3 (depends on 2) An electronic device wherein the light-emitting device according to claim 2 is provided in a display portion. ### Claim 4 (depends on 2) A lighting device comprising the light-emitting device according to claim 2. ### Claim 5 A light-emitting element comprising: a first electrode; a hole-transporting layer over the first electrode; a light-emitting layer over the hole-transporting layer; and a second electrode over the light-emitting layer, wherein the hole-transporting layer comprises a carbazole derivative represented by a general formula (1), wherein Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; α and β independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms which form a ring; R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; and R11 to R17 and R21 to R28 independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring. ### Claim 6 (depends on 5) A light-emitting device comprising: the light-emitting element according to claim 5; and means for controlling the light-emitting element. ### Claim 7 (depends on 6) An electronic device wherein the light-emitting device according to claim 6 is provided in a display portion. ### Claim 8 (depends on 6) A lighting device comprising the light-emitting device according to claim 6. ### Claim 9 A light-emitting element comprising: a first electrode; a hole-injecting layer over the first electrode; a light-emitting layer over the hole-injecting layer; and a second electrode over the light-emitting layer, wherein the hole-injecting layer comprises a carbazole derivative represented by a general formula (1), wherein Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; α and β independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms which form a ring; R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; and R11 to R17 and R21 to R28 independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring. ### Claim 10 (depends on 9) A light-emitting device comprising: the light-emitting element according to claim 9; and means for controlling the light-emitting element. ### Claim 11 (depends on 10) An electronic device wherein the light-emitting device according to claim 10 is provided in a display portion. ### Claim 12 (depends on 10) A lighting device comprising the light-emitting device according to claim 10. ### Claim 13 (depends on 1) The light-emitting device according to claim 1, wherein the light-emitting layer is in contact with the layer.