2023
DOI: 10.1002/adfm.202308341
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Trade‐Off Between Efficiency and Stability of CsPbBr3 Perovskite Quantum Dot‐Based Light‐Emitting Diodes by Optimized Passivation Ligands for Br/Pb

Mingyang Li,
Jindi Wang,
Jisong Yao
et al.

Abstract: Although significant progress has been made in improving the external quantum efficiencies (EQEs) of perovskite quantum dot (QD) light‐emitting diodes (QLEDs), understanding the degradation mechanism and enhancing stability remain a challenge. Herein,  increasing the content of Br‐based passivation ligands is shown to enhance the EQE up to 16.1% by reducing the defects of CsPbBr3 QDs in a Br‐rich environment. However, the operational lifetimes of perovskite QLEDs gradually decrease with the increase of halide … Show more

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Cited by 6 publications
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