1. Theoretical prediction of output performance of 63NiO-Si heterojunction betavoltaic cell.
- Author
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Wang, Yu, Zheng, Renzhou, Lu, Jingbin, Li, Xiaoyi, Chen, Ziyi, Zhang, Xue, Zhang, Yuehui, Liang, Lei, Zeng, Yugang, Qin, Li, and Liu, Yumin
- Subjects
NUCLEAR energy ,HETEROJUNCTIONS ,MONTE Carlo method ,ENERGY conversion ,SHORT-circuit currents - Abstract
For the
63 NiO-Si heterojunction betavoltaic nuclear battery, the energy deposition of the energy conversion material itself was simulated by Monte Carlo simulation, and the structure of the63 NiO-Si heterojunction was optimized based on the theoretical calculation results. When the thickness of63 NiO is 4 μm and the doping concentration of Si is 1 × 1015 cm−3 , the short-circuit current density, open-circuit voltage, fill factor, and maximum output power density of the nuclear battery are 1.22 μA · cm−2 , 3.17 V, 0.95, 3.67 μW · cm−2 . In addition, the output performance of63 Ni/NiO-Si heterojunction betavoltaic nuclear cell was calculated in this study. Under the condition that the activity of the radioactive source and the thickness of NiO(63 NiO) are the same in the two structures, the proposed structure (63 NiO-Si) has greatly improved the output performance of the nuclear battery by reducing the energy lost from radioactive source self-absorption. [ABSTRACT FROM AUTHOR]- Published
- 2022
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