Close-Packed Ultrasmooth Self-assembled Monolayer of CsPbBr₃ Perovskite Nanocubes.

ABSTRACT: The use of colloidal self-assembly to form the complex multiscale patterns in many optoelectronic devices has been a long-standing dream of the nanoscience community. While great progress has been made using charged colloids in polar solvents, controlled assembly from nonpolar solvents is much more challenging. The major challenge is colloidal clustering caused by strong van der Waals (vdW) attraction between long-chain surface capping ligands passivating the surface of nanocrystals. Such clustering degrades ordering in packing during the self-assembly process. While ligand exchange to provide colloidal stability in polar phases is often an option, this is not the case for the exciting new class of halide perovskites due to the material's solubility in essentially all polar solvents. Here,

SUBMITTER: Patra BK 

PROVIDER: S-EPMC7430943 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature