HIERARCHICAL POROUS TRANSITION METAL OXIDE STRUCTURE, PREPARING METHOD OF THE SAME, PHOTOELECTRODE INCLUDING THE SAME, AND DYE-SENSITIZED SOLAR CELL INCLUDING THE PHOTOELECTRODE

摘要

The present invention relates to a layered porous transition metal oxide structure, comprising: a first transition metal oxide structure having first pores that are three-dimensionally arranged; and a second transition metal oxide structure formed within said first pores, and having second pores which are smaller than said first pores and which are three-dimensionally arranged. The present invention also relates to a method for preparing said layered porous transition metal oxide structure, to a layered porous photoelectrode having said layered porous transition metal oxide structure, and to a dye-sensitized solar cell having said layered porous photoelectrode.