Subwavelength Superlattices Supporting Optical Mie Resonances

Self-assembled into superlattice nanocrystals open new opportunities to control unique optical properties. Employing Mie resonances for superlattices contributes to the additional enhancement of emission properties. Here, we theoretically study superlattices from CsPbBr
3
nanocrystals. We show that emission in resonant perovskite superlattices accelerates by 3 times due to Mie resonances. We believe our results are promising for the observation of superfluorescence enhanced by Mie resonances.