Light-emitting device, light-emitting apparatus, electronic device, and lighting device
A light-emitting device includes a light-emitting layer containing a light-emitting substance and a first organic compound. The light-emitting substance is an organometallic complex containing a central metal and ligands. One of the ligands includes a skeleton formed by a ring A1 and a pyridine ring...
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| creator | SUZUKI, TSUNENORI SASAKI, TOSHIKI YOSHIZUMI, HIDEKO AOYAMA, ERIKO YOSHIYASU, YUI NUMATA, SATOKO OHSAWA, NOBUHARU SEO, SATOSHI KIDO, HIROMITSU |
| description | A light-emitting device includes a light-emitting layer containing a light-emitting substance and a first organic compound. The light-emitting substance is an organometallic complex containing a central metal and ligands. One of the ligands includes a skeleton formed by a ring A1 and a pyridine ring bonded to each other. The ring A1 represents an aromatic ring or a heteroaromatic ring. The pyridine ring includes an alkyl group having 1 to 6 carbon atoms and being substituted with deuterium. The first organic compound includes an electron-transport skeleton and first and second substituents that are bonded to the electron-transport skeleton. The electron-transport skeleton includes a heteroaromatic ring having two or more nitrogen atoms. The first substituent includes one or both of an aromatic ring and a heteroaromatic ring. The second substituent includes a skeleton having a hole-transport property. The lowest triplet excited state of the first organic compound is locally distributed in the first substituent |
| format | Patent |
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The light-emitting substance is an organometallic complex containing a central metal and ligands. One of the ligands includes a skeleton formed by a ring A1 and a pyridine ring bonded to each other. The ring A1 represents an aromatic ring or a heteroaromatic ring. The pyridine ring includes an alkyl group having 1 to 6 carbon atoms and being substituted with deuterium. The first organic compound includes an electron-transport skeleton and first and second substituents that are bonded to the electron-transport skeleton. The electron-transport skeleton includes a heteroaromatic ring having two or more nitrogen atoms. The first substituent includes one or both of an aromatic ring and a heteroaromatic ring. The second substituent includes a skeleton having a hole-transport property. The lowest triplet excited state of the first organic compound is locally distributed in the first substituent</abstract><oa>free_for_read</oa></addata></record> |
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| title | Light-emitting device, light-emitting apparatus, electronic device, and lighting device |
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