Development of hybrid perovskite solar cells

Recent years, hybrid perovskite solar cells have been great focus due to their high efficiency exceeding 20%. There are many studies in literature regarding this type of solar cells that has high mobility and long diffusion lengths in forms of n-i-p and p-i-n. Inorganic/organic perovskite solar cells in the form of n-i-p contains electron transfer layer, perovskite layer and hole transfer layer accordingly. TiO2 has been widely used as electron transfer layer in this devices. On the other hand, inorganic/organic perovskite solar cells contain hole transfer layer, perovskite layer and electron transfer layer accordingly. PEDOT:PSS that has high hole mobility are being used as electron transfer layer. In this thesis, inorganic/organic perovskite solar cells in the form of n-i-p, in addition to TiO2, InsS3 has been used. By applying thermal annealing and changing molarity of InsS3, efficiency has been tried to improve. Also for the p-i-n form perovskite solar cells, DMSO and Zonyl have been doped into PEDOT:PSS to increase hole transfer and for the perovskite to cling onto surface of PEDOT:PSS. In another hybrid perovskite solar cells that have p-i-n structure, CH3NH3IPbI3-xClx perovskite material has been used to improve the efficiency by dopping DMSO and Zonyl into PEDOT:PSS. The results have been backed up with surface morphology and structural characterization.