Porous light-reflecting insulating layer paste, porous light-reflecting insulating layer, and dye-sensitized solar cell

摘要

The surface of the rutile-type titanium oxide particles having a volume median diameter (D50) of 100 nm or more and 1000 nm or less is coated with one or more coating materials selected from a silicon compound, a magnesium compound, an aluminum compound, a zirconium compound, and a calcium compound (A) and metal oxide particles (B) having a volume median diameter (D50) of 1 nm or more and 30 nm or less, wherein the mass ratio of the particles (B) to the particles (A) A particle (B) / particle (A)] of 5/95 to 40/60.