fig1
Figure 1. Schematic of the PQD-based color converter implemented in OWC applications. In the lattice structure of perovskite: A is a monovalent cation or organic group such as Cs+, CH3NH3+ (MA+), or CH(NH2)2+ (FA+), B is a divalent cation such as Pb2+, and X is a halide ion such as Cl-, Br-, or I-. PQD: perovskite quantum dot; OWC: optical wireless communication.
