In article number 1703546, Kilwon Cho and co‐workers demonstrate that PCBM molecules chemically passivate the grain boundaries of organometal halide perovskite crystals. The chemical passivation prevents halogens at the crystal boundaries from exiting from the crystal lattice, and thereby retards thermal degradation of the perovskite crystals. The tunability of perovskite grain boundaries by additives is an advance toward the practical use of organometal halide perovskite solar cells.

中文翻译：

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太阳能电池：使用分子添加剂通过晶界钝化提高热稳定性的有机金属卤化物钙钛矿太阳能电池（Adv。Funct。Mater。42/2017）

在Kilwon Cho及其同事的文章编号1703546中，他们证明PCBM分子化学钝化了有机金属卤化物钙钛矿晶体的晶界。化学钝化可防止晶界处的卤素从晶格中逸出，从而阻止钙钛矿晶体的热降解。添加剂对钙钛矿晶界的可调谐性是朝着有机金属卤化物钙钛矿太阳能电池的实际应用迈进的一步。