Kilwon Cho and his team have shown that PCBM molecules chemically passivate the grain boundaries of organometal halide perovskite crystals. This chemical passivation prevents halogens at the crystal boundaries from escaping, thus reducing thermal degradation. This advance in tuning perovskite grain boundaries with additives moves us closer to the practical use of perovskite solar cells.
[Scientific Journal cover design] Low-Thermal-Budget Fluorite-Structure Ferroelectrics for Future Electronic Device Applications
In article number 2100028, Jiyoung Kim, Si Joon Kim, and their team review key factors involved in developing fluorite-structure ferroelectrics
