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

United States Patent

February 5, 2013
View the Complete Patent at the US Patent & Trademark Office
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.
Li; Huaping (Goleta, CA), Xu; Yunhua (Hyattsville, MD), Bazan; Guillermo C. (Santa Barbara, CA)
The Regents of the University of California (Oakland, CA)
12/ 592,761
December 1, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Grant No. SSL-DOE 8-448 777 22 412 from the Department of Energy. The Government has certain rights in this invention.