Inverted organic solar cells with solvothermal synthesized vanadium-doped TiO2 thin films as efficient electron transport layer
Ahmadi Mehdi, Dafeh Sajjad Rashidi, Ghazanfarpour Samaneh, Khanzadeh Mohammad
       

(color online) Optical band gap of (a) pure and (b) vanadium-doped TiO2 thin film NPs.