This work demonstrates enhanced bandwidth and carrier mobility in CsPbBr3 photodetectors, suggesting better performance for underwater wireless optical communication.
Key Points
The C-Cu composite electrode significantly improves the bandwidth and response speed of CsPbBr3 photodetectors.
With a -3 dB bandwidth of 3 MHz and fall time of 406 ns, the performance exceeds previous CsPbBr3 photodetectors.
Utilizing the C-Cu electrode increases carrier mobility by passivating shallow defects within the perovskite material.
Photodetectors achieve a data rate of 20 Mbps in a prototype underwater wireless optical communication system.