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US Patent 11878988 Blue phosphorescent emitters employing functionalized imidazophenthridine and analogues

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 US Patent 11878988 Blue phosphorescent emitters employing functionalized imidazophenthridine and analogues

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Patent abstract

A series of functionalized imidazophenthridine analogue-based blue phosphorescent emitters have been designed, where bulky substituents (e.g., tetrabutyl, phenyl, mesityl, triisopropylbenzene, etc.) are introduced on an imidazophenthridine fragment of the emitters. Bulky substituents may suppress potential excimer formation, as well as improve the solubility of the complexes. This class of emitters may be utilized in luminescent labels, emitters for organic light emitting devices, and lighting applications.

Infobox
Is a
Patent
Patent
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
118789880
Patent Inventor Names
Jian Li0
Linyu Cao0
Date of Patent
January 23, 2024
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Patent Application Number
167515860
Date Filed
January 24, 2020
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Patent Primary Examiner
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Charanjit Aulakh
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CPC Code
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H01L 51/00
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H01L 51/50
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C07F 15/0086
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C07F 15/006
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