Grain boundary (GB) and interface passivation of perovskite films impacts the efficiency and stability of perovskite solar cells (PSCs) dramatically.
Perovskite films with enhanced grain size and reduced grain boundary were obtained with the incorporation of sulfonate-carbon nanotubes.
Abstract
Defects, inevitably produced in the solution-processed halide perovskite films, can act as charge carrier recombination centers to induce severe energy loss in perovskite solar cells (PSCs). Suppressing these trap states...