Publication

Abstract : The photovoltaic performance of lead halide-based perovskite materials has been growing at an unprecedented rate. The current certified efficiency of perovskite solar cell is found to be 26.70% using solution processable technology, which makes it a potential candidate to replace expensive, commercialized polycrystalline-silicon-based photovoltaic technology. In the work described herein, we developed a suitable approach for synthesis of methylammonium iodide (CH3NH3I, MAI) using NH4OH and HI and CH3OH as precursors. x-Ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) characterization techniques were used to analyze structural and morphological properties of synthesized CH3NH3I. The XRD pattern confirmed the formation of CH3NH3I phase. The FESEM images displayed the micron-cuboid-like morphology of the synthesized MAI. The CH3NH3PbI3 (MAPbI3) conventional perovskite was developed through mixing of synthesized MAI and PbI2. The formed MAPbI3 perovskite exhibited excellent optoelectronic properties. The assembled perovskite solar cell showed a power conversion efficiency (PCE) of 8.01% using synthesized MAI. These results suggest that the synthesized MAI was successfully developed using a novel approach, which is promising for large-scale production of conventional perovskite solar cells.