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:
Jul. 04, 2023
Filed:
Jul. 12, 2019
Applicant:
Oxford University Innovation Limited, Oxford, GB;
Inventors:
Assignee:
OXFORD UNIVERSITY INNOVATION LIMITED, Oxford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/66 (2006.01); C01D 17/00 (2006.01);
U.S. Cl.
CPC ...
C01D 17/00 (2013.01); C09K 11/665 (2013.01); C01P 2002/34 (2013.01); C01P 2006/60 (2013.01);
Abstract
The invention relates to perovskite compounds which have surprisingly good emission properties, particularly photoluminescent emission properties, in the blue region of the visible spectrum. These perovskites contain a mixture of cations or a mixture of halides, or both. The invention also relates to a photoactive material containing the perovskite species of the invention; to an optoelectronic device containing the photoactive material of the invention; to a method of producing blue light; and to the use of the photoactive material of the invention to emit blue light or as a phosphor.