NiO<sub>x</sub> Electrode Interlayer and CH<sub>3</sub> NH<sub>2</sub> /CH<sub>3</sub> NH<sub>3</sub> PbBr<sub>3</sub> Interface Treatment to Markedly Advance Hybrid Perovskite-Based Light-Emitting Diodes.

Chih, Yi-Kai; Wang, Jian-Chih; Yang, Rei-Ting; Liu, Chi-Ching; Chang, Yun-Chorng; Fu, Yaw-Shyan; Lai, Wei-Chi; Chen, Peter et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

The performance of hybrid perovskite-based light-emitting diodes (LEDs) is markedly enhanced by the application of a NiO<sub>x</sub> electrode interlayer and moderate methylamine treatment. A hybrid perovskite-based LED exhibits a peak luminous efficiency of 15.9 cd A<sup>-1</sup> biased at 8.5 V, 407.65 mA cm<sup>-2</sup> , and 65 300 cd m<sup>-2</sup> , showing a distinctive impact for future applications.