Efficient and stable CsPbBr3 perovskite quantum dots by dodecyl dimethyl betaine ligand toward light-emitting diode

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This research reveals enhanced electroluminescence performance in light-emitting diodes, suggesting BS12's critical role in stabilizing quantum dots.

The introduction of dodecyl dimethyl betaine significantly increases the photoluminescence quantum yield of perovskite quantum dots.
BS12 treatment enhances the operational lifetime of light-emitting diodes by 720%, indicating improved overall performance.
Density functional theory calculations support the stronger binding of BS12 to the perovskite surface, which reduces defects.
Stability is improved through enhanced film-forming ability and reduced trap density due to BS12's effective ligand properties.

Xie et al. (2025) studied this question.

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This research reveals enhanced electroluminescence performance in light-emitting diodes, suggesting BS12's critical role in stabilizing quantum dots.