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. 30, 2017
Filed:
Sep. 08, 2010
Yasushi Okubo, Tokyo, JP;
Noriko Yasukawa, Tokyo, JP;
Hiroaki Itoh, Tokyo, JP;
Takamune Hattori, Tokyo, JP;
Yasushi Okubo, Tokyo, JP;
Noriko Yasukawa, Tokyo, JP;
Hiroaki Itoh, Tokyo, JP;
Takamune Hattori, Tokyo, JP;
KONICA MINOLTA HOLDINGS, INC., Tokyo, JP;
Abstract
A tandem-type organic photoelectric conversion element has at least a first electrode, a second electrode, and a plurality of bulk heterojunction layers each comprising a p-type organic semiconductor material and an n-type organic semiconductor material. The tandem-type organic photoelectric conversion element and a solar battery are characterized in that when the absorption wavelengths of the bulk heterojunction layers are such that a second bulk heterojunction layer absorbs up to a longer wavelength than a first bulk heterojunction layer, the LUMO energy level (LUMO(n1)) of the film of the n-type semiconductor in the first bulk heterojunction layer and the LUMO energy level (LUMO(n2)) of the film of the n-type semiconductor in the second bulk heterojunction layer satisfy the following equation (1):0.4 eV≧LUMO(1)−LUMO(2)≧0.1 eV  (1).