Development of Low-cost Hybrid Perovskite Solar Cells

David Danilchuk, Baker Nour, Lila Dahal


Development of efficient and economically affordable photovoltaic (PV) technology is important to realize solar power as the primary source of renewable energy. Solar cells are electronic devices that directly convert sunlight into electrical energy using a photo-absorber material. Organic-inorganic lead halide-based hybrid perovskites have recently emerged as a promising photo-absorber material for efficient and low-cost solar cells. In this work, we report on the fabrication and characterization of hybrid perovskite solar cells employing methyl ammonium lead iodide (CH3NH3PbI3) nanocrystalline thin film as the light harvesting material. An inexpensive one-step spin-coating technique was used for the absorber film deposition. Surface morphology of the absorber layer was investigated using scanning electron microscopy (SEM). Solar cells were fabricated on FTO-coated soda-lime glass (SLG) substrates with RF magnetron sputtered ZnO as the electron transport layer. Spin-coated Spiro-MeOTAD was used as the organic hole transport layer. Current-voltage (I-V) characteristics of the fabricated solar cells were measured under simulated AM1.5 solar spectrum and under dark conditions. Electrical parameters, such as open-circuit voltage (Voc), short-circuit current (Isc), fill factor (FF), and efficiency were calculated from the measured I-V characteristics. A power conversion efficiency of 1.14% was achieved under an irradiance of 1000 W/m2. Detailed solar cell fabrication, characterization, and photovoltaic performance analysis results are presented.


Solar Cell, Perovskite, Photovoltaic Device, Renewable Energy, Solar Power

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