Perovskite liquid quantum dots as a color converter for LD-based white lighting system for visible light communication

Perovskite material has been widely researched for illumination. Since its shorter PL lifetime (nanosecond), compared with the traditional illumination phosphor (microsecond), perovskite has been considered as a promising material for communication. In this work, by ultrasonication, we synthesized the CsPbBr3 perovskite quantum dots and found that liquid perovskite quantum dots (LPQDs) presents shorter luminescence lifetime of 24ns than solid state perovskite (SPQDs). We demonstrated a white visible light communication (VLC) system by using the LPQDs as a color converter. The LD-based white lighting VLC system can reach a 1Gbps data rate at a receivable BER. Our study indicates that LPQDs has great potential in communication performance.