Zhang et al. report green-emitting colloidal quantum dots with a large CdZnSe core and a thin ZnS shell, enabling the weak hole confinement for efficient exciton formation. LEDs with efficiency of 30.7%, peak luminance of 1.9 million nits, and T95 of 21,900 h at 1,000 nits are achieved.
- Han Zhang
- Jingchun Li
- Huaibin Shen