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. 09, 2025
Filed:
Aug. 09, 2022
Hamamatsu Photonics K.k., Hamamatsu, JP;
Kyushu University, National University Corporation, Fukuoka, JP;
Takahiko Yamanaka, Hamamatsu, JP;
Shigeo Hara, Hamamatsu, JP;
Chihaya Adachi, Fukuoka, JP;
Hajime Nakanotani, Fukuoka, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Fukuoka, JP;
Abstract
Provided is an organic light-emitting element that is excited by an electromagnetic wave. The organic light-emitting element includes: a first electrode; a second electrode disposed to face the first electrode; an organic light-emitting layer disposed between the first electrode and the second electrode, where separation of charges occurs due to incidence of the electromagnetic wave; a hole transporting layer disposed between the first electrode and the organic light-emitting layer; and a charge block layer disposed between the second electrode and the organic light-emitting layer. The charge block layer has a LUMO level shallower than a LUMO level of organic light emitters included in the organic light-emitting layer.