The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2015
Filed:
Jun. 21, 2010
Yadong Zhang, Alpharetta, GA (US);
Carlos Zuniga, Atlanta, GA (US);
Gaelle Deshayes, Atlanta, GA (US);
Julie Leroy, Brussels, BE;
Stephen Barlow, Atlanta, GA (US);
Seth R. Marder, Atlanta, GA (US);
Xuyang He, Atlanta, GA (US);
Sung-jin Kim, Atlanta, GA (US);
Bernard Kippelen, Decatur, GA (US);
Yadong Zhang, Alpharetta, GA (US);
Carlos Zuniga, Atlanta, GA (US);
Gaelle Deshayes, Atlanta, GA (US);
Julie Leroy, Brussels, BE;
Stephen Barlow, Atlanta, GA (US);
Seth R. Marder, Atlanta, GA (US);
Xuyang He, Atlanta, GA (US);
Sung-Jin Kim, Atlanta, GA (US);
Bernard Kippelen, Decatur, GA (US);
Georgia Tech Research Corporation, Atlanta, GA (US);
Abstract
The inventions describe disclosed and described herein relate to ambipolar small molecule host materials for guest phosphorescent metal complexes. Methods of making the ambipolar small molecules are also described. These ambipolar small molecules, which comprise both an oxadiazole and one or more carbazole groups, can be used to make the emission layers of unexpectedly efficient OLED devices containing the materials of the inventions, wherein (I) at least one of the R, Rand Rgroups is an optionally substituted carbazole group.