NIR heterojunction based on porous silicon and CuO:Cu2O nanoparticle for photovoltaic devices

Solar cells are considered one of the most important sources of renewable energy and have high economic quality within sustainable development programs. Nanoparticles have higher photoresponsivity than microscopic counterparts due to their increased surface area per unit volume, which considerably lowers charge carrier recombination and scattering. CuO and Cu2O are common transition metal oxides with optical band gaps appropriate for near-infrared detection. They also form a type II heterojunction, which allows for efficient charge separation. In addition to constructing this photodetector, we synthesize CuO:Cu2O composite nanoparticles by laser ablation, fabricate photodetector devices and photoelectric cells and deposit them on porous silicon by drop-casting method to examine photoresponse and specific detectivity. as a solar cell.