摘要
In this current work, a bifunctional TiO 2 thin film with reduced pin-hole effect and enhanced light trapping capability was successfully fabricated by using a facile galvanostatic anodic deposition route in the presence of Brij-58 soft template (ST). The surface morphology of electrodeposited TiO 2 thin film using ST confirmed the formation of nano-sized TiO 2 particles with improved porous nature than that of TiO 2 thin film electrodeposited in the absence of ST. Compared with the conventional scaffold porous layer (PL) fabricated from commercial mesoporous TiO 2 composed of ∼30 nm nanoparticles, the electrodeposited TiO 2 film using ST demonstrated the reduced pinhole effect and improved light trapping feature. Owing to the bifunctional behavior of electrodeposited TiO 2 using ST, the cell efficiency of the perovskite solar cell was achieved up to 17.06% which was ca.10% higher than those with commercial TiO 2 nanoparticles.