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. 03, 2024
Filed:
Nov. 29, 2019
Sumitomo Chemical Co., Ltd., Tokyo, JP;
Francisco Javier Rodriguez-Martinez, Godmanchester, GB;
Nir Yaacobi-Gross, Godmanchester, GB;
Sumitomo Chemical Co., Ltd., Tokyo, JP;
Abstract
A composition comprising a first compound and a second compound of formula (I) wherein EDG is an electron-donating group comprising a polycyclic hetero aromatic group and each BAG is an electron-accepting group of formula (II) --- is a bond to EDG; each Ris, independently in each occurrence, H or a substituent; each R-Ris, independently in each occurrence, H or an electron-withdrawing group; and of the first and second compounds of formula (I), the total number of electron-withdrawing groups R-Ris greater for the first compound of formula (I). The composition may further contain an electron donor capable of donating an electron to the compounds of formula (I). The composition may be used in the photoactive layer of an organic photodetector.