NiO Electrode Interlayer and CH NH /CH NH PbBr Interface Treatment to Markedly Advance Hybrid Perovskite-Based Light-Emitting Diodes.

The performance of hybrid perovskite-based light-emitting diodes (LEDs) is markedly enhanced by the application of a NiO electrode interlayer and moderate methylamine treatment. A hybrid perovskite-based LED exhibits a peak luminous efficiency of 15.9 cd A biased at 8.