Synthesis of superparamagnetic nanocomposite of poly(m-amino benzenesulfonic acid) and Fe3O4 and its high efficiency in solar cell

This work reports synthesis and characterization of core-shell nanocomposite of poly(m-aminobenzenesulfonic acid) with FeCl3.6H2O as oxidant for polymerization and precursor of nanoparticles for preparation of nanocomposite in solid-state condition. The synthesized nanocomposite (NCABS-Fe3O4) was characterized and its properties such as thermal, photophysical (solar cell), and magnetic were investigated. This nanocomposite was exhibited good thermal stability with 10% weight loss temperatures (T10%) in the 492 °C. It was showed that strong interfacial interaction between inorganic particles and the polymer matrix contributed to the high thermal properties. According to Vibrating sample magnetometry (VSM), it has high saturation magnetization of 40 emu/g at 8000 Oe, and has superparamagnetic properties at room temperature. SEM and TEM were indicated the same results and particles with 42-44 nm average size.Polymer solar cell was prepared by NCABS-Fe3O4 on fluorine doped tin oxide (FTO) and aluminum electrodes. The photovoltaic cell characteristics, i.e. open circuit voltage (VOC), short circuit current density (ISC), fill factor (FF) were measured under simulated solar irradiation and power conversion efficiency (PCE or η) was found to be 4.24% for FTO/NCABS-Fe3O4/Al structure [1-3].