Student Seminar

Perovskite solar cells

Shirin Riahi, SFU Physics
Location: C9000

Friday, 03 March 2023 02:30PM PST


With the increase in global power demand, the requirement for a sustainable and clean source of energy is also increasing. Solar energy is a promising candidate for this aim considering that solar energy is inexhaustible and eco-friendly. Among all the various types of solar cells, Perovskite Solar Cells (PSCs) are at the center of attention because of their unique advantages such as high optical absorption, tunable and direct bandgap, high carrier mobility, long carrier lifetime, low exciton binding energy, and low defect density. Other than solar cells they are currently used in photodetectors, light-emitting diodes (LEDs), and lasers. High-performance and low-cost processing methods of halide perovskites are solid proof of their capability in photovoltaic technology in the future. Although perovskite materials show outstanding performance in various optoelectrical parameters, they suffer from poor chemical stability under ambient conditions. In this talk, I will cover the general mechanism of PSCs and the different approaches that have been proposed to mitigate the stability of perovskite structures like composition and configuration engineering and fabrication of single crystals.