Phase Evolution for Efficient Tin Perovskite Light-Emitting Diodes.
Tin perovskites are promising lead-free alternatives for near-infrared light-emitting diodes (LEDs), but their performance is limited by defects from uncontrolled crystallization. Three-dimensional (3D)/two-dimensional (2D) heterostructuring has emerged as a promising route to mitigate this issue, yet these films under...