Developed a method for large scale all-inorganic halide perovskite array patterning.
Significance and Impact
This method renders a platform for the study of fundamental properties and opportunities for perovskite-based optoelectronics
- The developed method enables the patterning of single crystal cesium lead halide perovskite arrays with tunable spacing (from 2 to 20 μm), composition (CsPbX3, X=Cl, Br, I), emission wavelength (420 nm, 525 nm, 720 nm) and crystal size (from 200 nm to 1.2 μm) in high production yield (almost every pixel in the array is successfully grown with converted perovskite crystals)
- The two-step conversion concept can be generalized to other material systems to grow large scale arrays.