AbstractSection Highlights

• Synergistic passivation mechanism of the dual functional compound of potassium bromide for metal halide perovskite films, that is through chemical bonding and physical screening towards the various types of defects.

• Metal-ion additives can simultaneously passivate the defects of halide vacancies with bromine anions and dangling bond defects with metal cations.

• Achieve the maximum external quantum efficiency of ~21% and maximum luminance of ~60,000 cd m⁻².

中文翻译：

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通过缺陷钝化和介电屏蔽的协同效应提高钙钛矿发光二极管的性能


摘要部分亮点

• 
  溴化钾双功能化合物对金属卤化物钙钛矿薄膜的协同钝化机理，即通过化学键合和物理屏蔽对各类缺陷进行钝化。

• 
  金属离子添加剂可以同时钝化溴阴离子的卤化物空位缺陷和金属阳离子的悬挂键缺陷。

• 
  实现~21%的最大外量子效率和~60,000 cd m ⁻² 的最大亮度。