TITANIA NANO-ROD, ITS MANUFACTURE METHOD, AND DYE SENSITIZING SOLAR BATTERY USING THIS TITANIA NANO-ROD

摘要

PPROBLEM TO BE SOLVED: To provide titania in an anatase phase giving a porous titania layer with higher electron transport efficiency than ever before, its manufacture method and a solar battery using this titania. PSOLUTION: This manufacture method comprises a step to obtain titania sol by reacting an organotitanium compound with an aqueous solution containing a block copolymer having a hydrophilic block and a hydrophobic block and an organic amine or ammonia, and a step to produce a nano-rod of titania by hydrothermally reacting the titania sol. Thereby, a highly crystalline titania nano-rod having X-ray diffraction intensity ratio (004)/(200) at (004) plane to (200) plane in Miller index expression of 0.85-1.0 is obtained. This titania nano-rod exhibits high electron transport efficiency, thereby, a dye sensitizing solar battery with high photoelectric conversion ratio can be manufactured by using this. PCOPYRIGHT: (C)2007,JPO&INPIT