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:
May. 05, 2020
Filed:
Aug. 23, 2011
Jonathan Maunoury, Brussels, BE;
Enrico Orselli, Brussels, BE;
Alexandre Ferrand, Brussels, BE;
Dominique Bascour, Grez-Doiceau, BE;
Jonathan Maunoury, Brussels, BE;
Enrico Orselli, Brussels, BE;
Alexandre Ferrand, Brussels, BE;
Dominique Bascour, Grez-Doiceau, BE;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
The present invention relates to a novel triscarbazole compound having substituent on N-phenyl, which can be represented by Formula (I). wherein Ris selected from the group consisting of hydrogen, halogen or alkyl or alkoxy group having 1 to 20 carbon atoms wherein at least one hydrogen atom is optionally replaced by halogen; R, R, R, Rand Rare any of substituents other than hydrogen wherein at least two of Rand Rmay further form a fused ring; and i, j, k, l and m are same or different at each occurrence and represent an integer from 0 to 4, with the proviso that when Ris hydrogen, i is not 0. By introduction of the substituent on N-phenyl, the device efficiency, stability and lifetime can be increased while maintaining the solubility. These compounds can be used in various organic devices such as organic light emitting diodes, photovoltaic cells or organic semiconductor devices.