Distribution control enables efficient reduced-dimensional perovskite LEDs

Nature, Published online: 24 November 2021; doi:10.1038/s41586-021-03997-z

The efficiency and operating lifetimes of perovskite light-emitting diodes is improved by using a fluorinated triphenylphosphine oxide additive to control the cation diffusion during film deposition and passivate the surface.

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