POROUS SEMICONDUCTOR LAYER, POROUS-SEMICONDUCTOR-LAYER PASTE, AND DYE-SENSITIZED SOLAR CELL

摘要

A porous semiconductor layer containing the following: anatase titanium dioxide particles (A) that have an average primary-particle size between 1 and 70 nm, inclusive; and particles (B) obtained by coating rutile titanium dioxide particles with an insulator, said rutile titanium dioxide particles having an average primary-particle size between 100 and 1,000 nm, inclusive.