TITANIUM OXIDE FILM, TITANIUM OXIDE FILM ELECTRODE FILM STRUCTURE AND DYE-SENSITIZED SOLAR CELL

摘要

PROBLEM TO BE SOLVED: To easily and inexpensively achieve an even higher photoelectric conversion efficiency for a titanium oxide film constituting a dye-sensitized solar cell.

SOLUTION: Titanium dioxide film electrode film structure 3 is arranged on glass substrate 1. This titanium dioxide film electrode film structure 3 is constituted of underlayer 31, interlayer 32 and top layer 33. The underlayer 31 is a 0.1-10 μm-thick dense film composed of anatase crystal particulate titanium dioxide with a diameter of 5-10 nm. The interlayer 32 is a porous film containing rutile acicular crystal titanium dioxide with a diameter of 30-200 nm and a length of 0.5-20 μm and anatase crystal particulate titanium dioxide with a diameter of 5-400 μm. The top layer 33 is a 1-20 μm-thick porous film composed of anatase crystal particulate titanium dioxide with a diameter of 20-400 nm.

COPYRIGHT: (C)2008,JPO&INPIT