Title:
A light emitting element, a luminescent device, electronic equipment, a lighting installation
Document Type and Number:
Japanese Patent JP6220468
Kind Code:
B2
Abstract:
A light-emitting element having a long lifetime is provided. A light-emitting element exhibiting high emission efficiency in a high luminance region is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by a general formula (GO). The molecular weight of the first organic compound is greater than or equal to 500 and less than or equal to 2000. The second organic compound is a compound having an electron-transport property. In the general formula (GO), Ar1 and Ar2 each independently represent a fluorenyl group, a spirofluorenyl group, or a biphenyl group, and Ar3 represents a substituent including a carbazole skeleton.
Inventors:
Takao Hamada
Hiromi Seo
Kenta Abe
Kyoko Takeda
Tetsushi Seo
Hiromi Seo
Kenta Abe
Kyoko Takeda
Tetsushi Seo
Application Number:
JP2017042611A
Publication Date:
October 25, 2017
Filing Date:
March 07, 2017
Export Citation:
Assignee:
Semiconductor Energy Laboratory Co., Ltd.
International Classes:
H01L51/50; C07D209/86; C07D403/14; C09K11/06
Domestic Patent References:
| JP2012080063A |
Foreign References:
| WO2011132683A1 | ||||
| WO2011088877A1 | ||||
| WO2011110262A1 | ||||
| WO2011076323A1 | ||||
| WO2012026780A1 |
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