A new ionic liquid crystal (ILC, 1-Dodecyl-3-methylimidazolium tetrafluoroborate) was developed to modify buried interface of perovskite solar cells (PSC). The ILC promotes a preferential growth of perovskite along [001] direction and exhibits strong interaction with perovskite to passivate defects. The ILC-modified PSC delivers an efficiency of 24.92 % and maintains 94 % of the original value after storage in ambient for 3000 h.

中文翻译：

---

自组装液晶模板的结晶调控可实现高效稳定的钙钛矿太阳能电池


开发了一种新型离子液晶（ILC，1-十二烷基-3-甲基咪唑鎓四氟硼酸盐）来修饰钙钛矿太阳能电池（PSC）的埋入界面。 ILC促进钙钛矿沿[001]方向优先生长，并表现出与钙钛矿的强烈相互作用以钝化缺陷。经过 ILC 改进的 PSC 效率为 24.92%，在环境中储存 3000 小时后仍保持原始值的 94%。