Speaker
Mr
人洲 郑
(吉林大学)
Description
A theoretical study of the optimization and simulation of a betavoltaic battery composed of a p-n junction converter and a Nickle-63 isotope source is presented. The self-absorption of β particles in the Ni-63 radioisotope film and the energy deposition of β particles in the semiconductor converter are investigated by the Monte Carlo simulation. The relationships between doping concentrations and basic parameters such as depletion region width, minority carrier diffusion length and leakage current of the p-n junction are discussed through the calculation formulas. On the other hand, the output performance of the battery are obtained through COMSOL Multiphysics modeling software, such as the short-circuit current density, open-circuit voltage, maximum output power density and energy conversion efficiency. Finally, the optimal design of the betavoltaic battery are given, including the thickness of the source, the p-n junction depth, the doping concentrations in the p-type and n-type regions.
| Abstract Type | Talk |
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Primary author
Mr
人洲 郑
(吉林大学)
Co-author
Prof.
Jingbin Lu
(Jilin University)
