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:
Jun. 25, 2013
Filed:
Mar. 25, 2009
Noriyo Yamanaka, Yokohama, JP;
Masaki Minami, Yokohama, JP;
Tsutomu Nakamura, Yokohama, JP;
Hideki Masuda, Nagoya, JP;
Zhengzhe Jin, Nagoya, JP;
Noriyo Yamanaka, Yokohama, JP;
Masaki Minami, Yokohama, JP;
Tsutomu Nakamura, Yokohama, JP;
Hideki Masuda, Nagoya, JP;
Zhengzhe Jin, Nagoya, JP;
JX Nippon Oil & Energy Corporation, Tokyo, JP;
Nagoya Institute of Technology, Aichi, JP;
Abstract
Disclosed is a novel photosensitizer that can absorb light in a wide visible light region and in the case of a very thin film form, can enhance a light absorption efficiency by virtue of a large light absorption coefficient. The photosensitizer is used for metal oxide semiconductor electrodes and comprises a metal complex represented by a general formula MLLX, wherein M is a group 8 transition metal of the periodic table, Xs are each independently a halogen atom, a cyano group, a thiocyanate group, an isothiocyanate group, an isocyanate group, an isocyanide group or a hydroxyl group, or a bidentate ligand in the case where Xs are bonded to one another, Land Lare each a ligand having an aromatic ring, and either Lor Lhas a functional group having a COOH group or PO(OH), and when the photosensitizer is adsorbed on a metal oxide semiconductor electrode via ligands Land L, the difference ΔL between the energy levels of ligands Land Lin their excited states, calculated in accordance with a GAUSSIAN03 quantum chemistry calculation program is 0.25 eV or more.