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:
Feb. 18, 2025
Filed:
Oct. 23, 2020
Sumitomo Chemical Co., Ltd., Tokyo, JP;
Kiran Kamtekar, Cambridgeshire, GB;
Sumitomo Chemical Co., Ltd., Tokyo, JP;
Abstract
A composition comprising an electron acceptor material and an electron donor material wherein the electron acceptor material is a compound of formula (I): EAG-EDG-EAG (I) wherein each EAG is an electron-accepting group and EDG is a group of formula (II): (II) wherein: n is at least 1; each m is independently 0 or at least 1; each X, Y and A is independently O, S or Se; Z, independently in each occurrence if n is greater than 1, is O, S, C═O or NRwherein Ris H or a substituent; and R-Rare each independently selected from H or a substituent. The composition may be used as photosensitive organic layer of an organic photodetector.