RT - Journal Article T1 - Investigation of the effect of solvents on photovoltaic parameters of perovskite solar cells by two-step spin coating method JF - opsi YR - 2018 JO - opsi VO - 24 IS - 0 UR - http://opsi.ir/article-1-1552-en.html SP - 317 EP - 320 K1 - perovskite solar cell K1 - DMF K1 - DMSO K1 - Organic solvent K1 - Two step spin coating. AB - perovskite layers as a absorbing light play a key role in improving the performance of perovskite solar cells. The solvents used to make the perovskite layer are effective in the quality and operation of the solar cells. In this study, photovoltaic parameters of solar cells made with two organic solvents were investigated. Deposition were used by two step method. In the first step, lead was dissolved in two different organic solvents of dimethylformamide (DMF) and dimethylsulfoxide (DMSO) separately and deposited on a titanium oxide layer by rotary coating. In the second step, methyl aammonium iodide solution (MAI) was spin coated on lead iodide. The result of these two stages lead to formation of the MAPbI3 layer on the TiO2 porous layer. Studies show that, the photovoltaic parameters and morphology of the layer created with the DMF solvent is more favorable. LA eng UL http://opsi.ir/article-1-1552-en.html M3 ER -