Ma et al. report an organic cation engineering strategy to improve the luminescent properties and charge transport in organic-inorganic antimony halide films, enabling red LEDs with efficiency up to 19.4% and half-lifetime of 10,190 min. Large-area (12.15 cm2) LEDs show efficiency of 14.2%.
- Zhuangzhuang Ma
- Weihong Chu
- Zhifeng Shi