Structural, Optical and Photocatalytic Properties of Erbium (Er3+) and Yttrium (Y3+) Doped TiO2 Thin Films with Remarkable Self-cleaning Super-hydrophilic Properties

Raquel da Silva Cardoso & Suélen Maria de Amorim & Gidiane Scaratti & Camilla Daniela Moura-Nickel & Rodrigo Peralta Muniz Moreira & Gianluca Li Puma & Regina de Fatima Peralta Muniz Moreira