Investigation of the planar and inverted structure of Cu2O/CH3NH3PbI3/PCBM\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{Cu}}_{2}{\text{O/CH}}_{3}{\text{NH}}_{3}{\text{PbI}}_{3}/{\text{PCBM}}$$\end{document} perovskite solar cell with and without the CH3NH3SnI3 layer

In recent years, the intense demand, because of attitude to renewable and the non-biodegradable energy have accelerated the transformations of solar cell technologies, especially, Pb-based halides perovskite solar cells attracted the attention of researchers. One of the advantages of these cells is the low cost due to the use of cost-effective materials -in addition to- the construction methods in their structure, but these cells face challenges such as inadequate stability and hysteresis. This paper is about investigation of the planar and inverted structure of Perovskite Solar Cells (PSCs) with the inorganic hole transport layer, which has relatively less vulnerability to the instability and hysteresis that show acceptable efficiency. The proposed and examined structure in the research includes two new arrangements including a layer of CH3NH3SnI3. Initially, the power conversion efficiency in this structure was obtained 11% by using simulation which compared and validated through experimental work. Then, the simulation results have shown an increase in the power conversion efficiency by adding a CH3NH3SnI3 layer to the structure from 11.94% to 23.21%. The best power conversion efficiency has been observed by the 300 nm thickness of the CH3NH3SnI3 layer.