Study the influence of mesoporous titanium dioxide layer on Perovskite solar cell efficiency
Keywords:mesoporous titanium dioxide, perovskite solar cell, solar cell efficiency
This paper studied mesoporous TiO2 on the power conversion efficiency of perovskite solar cells by fabricating TiO2 paste instead of prefabricated TiO2, cutting the hole-transport layer, and using carbon instead of gold electrodes. The fabricated perovskite solar cells (PSCs) feature FTO glass/ compact TiO2/ mesoporous TiO2/ CH3NH3PbI3/ carbon electrodes. The mesoporous TiO2 layer was prepared from anatase TiO2 and dissolved in ethanol at the ratios of 2.63, 1.27, 0.65, and 0.32%, respectively. The best perovskite solar cell efficiency was obtained using a mesoporous TiO2 cell at a concentration of 1.27% with an open-circuit voltage (Voc) of 0.41 V, short-circuit current density (Jsc) of 3.48 mA/cm2, fill factor (FF) of 0.3, and power conversion efficiency (PCE) of 0.44%.
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