Abstract
In this study, thermal oxidation method is followed to prepare surface oxidized titanium carbide (TiO2-Ti3C2) nanomaterial. Here, the formation of anatase phase TiO2 nanoparticles over the surfaces of Ti3C2 MXene is confirmed by UV–Vis, FT-IR, XRD and FE-SEM and HR-TEM studies. The TiO2-Ti3C2 MXene acts an interfacial layer in double perovskite solar cell that exhibits high open circuit voltage (Voc of 1.01 V), short circuit current density (Jsc of 2.64 mA/cm−2), fill factor (FF of 0.55) and power conversion efficiency (PCE of 1.35%) under ambient conditions. Hence, we suggest that this surface modified material will be useful for double perovskite photovoltaics applications.
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