Ab Initio Thermodynamic Study of PbI${}_2$ and CH${}_3$NH${}_3$PbI${}_3$ Surfaces in Reaction with CH${}_3$NH${}_2$ Gas for Perovskite Solar Cells

Yun-Sim Kim, Chol-Hyok Ri, Yun-Hyok Kye +2

Hybrid organic-inorganic halide perovskites for photovoltaics have attracted research interest due to their unique material properties, but suffered from poor material stability. I…