Structural effects of ZnS:Cu phosphor layers on beta radioluminescence nuclear battery

The design, fabrication, and testing of beta radioluminescence (RL) nuclear battery based on the ZnS:Cu phosphor layers with plane and V groove structures are presented. The RL spectra and current-voltage characteristic curves were used to investigate the optical and electrical properties with Ni-63 and Pm-147. For different structures, their emission peaks are all at 530 nm. The Monte Carlo simulation code was employed to analyze the device performance. The V groove structure has the ability to provide improved for an appropriate radiation source. Overall, a suitable phosphor layer structure can provide a new route to exhibit higher energy conversion efficiency.