Synthesis and optical wireless communication application of high efficiency extreme blue CsPbBr3 nanoplates

Abstract

CsPbBr₃ nanoplates with excellent optical properties are emerging as a kind of novel functional material and are applied in many fields. In this work, we synthesize high-efficiency CsPbBr₃ nanoplates with extreme blue emission and near 100% photoluminescence quantum yield. The unique optical properties and stable structure result from the sufficient surface passivation due to the addition of ZnBr₂, which endows it with great prospects in the field of blue light optical wireless communication. CsPbBr₃ nanoplates show 32 MHz bandwidth with no dependence on excitation power, excitation light incidence angle and solution concentration. Furthermore, the optical wireless communication system is built based on CsPbBr₃ nanoplates and up to 150 Mbps signal transmission rate is achieved, which demonstrates its bright application potential.