FABRICATION AND INVESTIGATION OF PEROVSKITE SOLAR CELL BASED ON NICKEL OXIDE HOLE TRANSPORT LAYER AND FULLERENE INTERLAYER

Abstract

Increased demand for clean energy sources, solar cell technology is expanding rapidly. One of the most critical challenges in constructing perovskite solar cells is the lack of an effective hole transport layer with stability and reasonable price. Inorganic p-type semiconductors such as nickel oxide are very cost-effective compared to organic ones. Features such as wide energy gap, high conductivity, stability and resistance to moisture, and solution-based manufacturing process, make the nanostructured inorganic hole transport layer a viable alternative to organic materials. The purpose of this project was to evaluate the characteristics and mechanism of nickel oxide as a hole transport material and fullerene as an interlayer in the structure of inverted nanostructured perovskite solar cells. These solar cells obtained a fill factor of about 71%, a current density of 21.5 mA/cm2, an open-circuit voltage of 1000 mV, and an efficiency of 15.2%.