Importance of Blocking Layers at Conducting Glass/TiO2 Interfaces in Dye-sensitized Ionic-liquid Solar Cells

Abstract
Thin Nb2O5 film works as a potential blocking layer when deposited between fluorine-doped tin oxide and nanocrystalline TiO2 layer, improving Voc and conversion efficiency of the dye-sensitized TiO2 solar cells using ionic liquid electrolytes.