Organic electroluminescent materials and devices
US-2024292736-A1 · Aug 29, 2024 · US
Heteroleptic iridium complexes as dopants
US9184397B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9184397-B2 |
| Application number | US-201414156808-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 16, 2014 |
| Priority date | Mar 23, 2009 |
| Publication date | Nov 10, 2015 |
| Grant date | Nov 10, 2015 |
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Abstract
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Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.
First claim
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The invention claimed is: 1. A compound having the formula: wherein the sum of the number of carbon atoms in R 1 is at least 2; wherein R 3 , R 4 , R 5 , R 6 are optionally linked; wherein R a and R b represent mono-, di-, tri- or tetra-substitution; wherein X is selected from the group consisting of BR, NR, PR, O, S, Se, C═O, S═O, SO 2 , CRR,…
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- C07F15/0033Primary
Chemistry & Metallurgy · mapped topic
Electricity · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9184397B2 cover?
- Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.
- Who is the assignee on this patent?
- Universal Display Corp
- What technology area does this patent fall under?
- Primary CPC classification C07F15/0033. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).