Patent · US Active

Heteroleptic iridium complexes as dopants

US11910700B2 · kind B2 · utility

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40References
20Claims
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Key dates

Filing dateMay 17, 2022
Grant dateFeb 20, 2024
Priority date
Expiry dateMay 17, 2042

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E10/549
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.