DYE-SENSITIZED SOLAR CELL AND METHOD OF MANUFACTURING THE SAME

• Main Authors: ITO MUTSUMI, SUZUKI RYO, TOYODA TATSUO, IKUNO TAKASHI, KAMIYAMA KOJI, KATO NAOHIKO
• Format: Patent
• Language: English
• Published: 09.06.2011
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To increase a current and voltage generated by absorbing light more than ever before in a dye-sensitized solar cell using an inorganic sensitizer. SOLUTION: The dye-sensitized solar cell 10 is structured such that a hole transport layer 22 is interposed between a photoelectrode 12 having an electron transport layer 16 coated with a light absorption layer 18 and provided on a transparent conductive substrate 14 and a counter electrode 20 arranged to face the photoelectrode 12. The light absorption layer 18 includes, as a sensitizing dye, a metal sulfide (such as SnS) having a surface reforming layer containing a predetermined amount of an element having a higher electronegativity than sulfur, the metal sulfide being provided on an interface with respect to the hole transport layer. COPYRIGHT: (C)2011,JPO&INPIT