Patent · US Active

Tetrakis(1-imidazolyl) borate (BIM4) based zwitterionic and related molecules used as electron injection layers

US8367839B2 · kind B2 · utility

2Cited by

0References

4Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Huaping Li · Los Angeles, US
Yunhua Xu · Hyattsville, US
Guillermo C. Bazan · Lompoc, US

Key dates

Filing date	Dec 1, 2009
Grant date	Feb 5, 2013
Priority date	—
Expiry date	Dec 1, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F5/022
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Tetrakis(1-imidazolyl)borate (BIm4) based zwitterionic and/or related molecules for the fabrication of PLEDs is provided. Device performances with these materials approaches that of devices with Ba/Al cathodes for which the cathode contact is ohmic. Methods of producing such materials, and electron injection layers and devices containing these materials are also provided.

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