Publication

Abstract : Methyl ammonium lead iodide inverted Perovskite solar cells have achieved a power conversion efficiency (PCE) of upto 21%. The most vital constituent of perovskite solar cells (PSCs) are Hole transporting materials (HTMs) helping to obtain higher PCE, adjusting the energy match and having functions of optimizing interface. In this work a comparative study of inverted perovskite solar cells with different hole transporting materials are fabricated out by simulation using the software setfos 0.5. For all the solar cells, the transparent conducting oxide (TCO), perovskite, electron transporting material and cathode are ITO, MAPbI3, C60 and silver respectively remains the same. The different hole transporting materials used are P3HT, PFO, PFB, TFO and TaTm. The thickness of each layers are constant in each structure and they are 120 nm for ITO, 500 nm for perovskite, 50 nm for C60, 100 nm for Ag and all hole transporting layer thickness is 50 nm. The perovskite material, MAPbI3 exhibits good absorption in both visible and UV regions. The photovoltaic parameters such as short circuit current (Jsc), Fill factor, open circuit voltage (Voc) and efficiency of all the inverted perovskite solar cells are compared. An efficiency of 11.3%, 11.2%, 10.8%, 10.5% and 8.4% are acquired for TFB, PFO PFB, TaTm, and P3HT when used as hole transporting material for all the five inverted perovskite solar cell. This study will provide a novel inverted perovskite solar cell device structure and the simulation results will assist in designing a complete inverted PSC device for photovoltaic response.