Insights into ligand passivation strategies for multiple types of surface defects in high-performance perovskite quantum dot light-emitting diodes

Key Points

• This research aims to explore ligand passivation strategies to enhance the performance of perovskite quantum dot light-emitting diodes.
• Utilized a multi-step ligand exchange method for quantum dots.
• Investigated binding mechanisms of ligands on surface defects.
• Synthesized devices to evaluate photoelectronic performance.
• Achieved complete passivation of quantum dots.
• Significant improvement in photoelectronic performance of the devices.