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In this paper, the basic laws of spectral response, open-circuit voltage and short circuit current of GaAs/Ge solar cells are obtained by ground simulation irradiation test under the different-energy electrons’ irradiations, such as 1, 1.8 and 10 MeV. The carriers’ transport mechanism in cells is analyzed using the PC1 D simulation program. The variations of the majority carriers’ concentration and the minority carriers’ diffusion length with the irradiation particle fluence are obtained in GaAs/Ge solar cells under different-energy electrons’ irradiation. Majority carriers’ removal rate and minority carriers’ diffusion length damage coefficient are calculated under different-energy electron irradiations. The results show that majority carriers’ concentration and minority carriers’ diffusion length decrease with increasing the incident electron fluence. The majority carriers’ removal rate and the damage coefficient of minority carriers’ diffusion length increase with increasing the electrons energy. The majority carriers’ removal effect and the minority carriers’ diffusion length shortened are the main reasons of open-circuit voltage and short circuit current degradation of the solar cells, respectively.
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Keywords:
- GaAs solar cells /
- irradiation damage /
- carriers’ /
- concentration
[1] Anspaugh B E 2010 Acta Energiae Sol. Sin. 31 1568 (in Chinese) [胡建民, 吴宜勇, 何松, 钱勇, 陈鸣波, 杨德庄 2010 太阳能学报 31 1568]
[2] Wu Y Y, Yue L, Hu J M, Lan M J, Xiao J D, Yang D Z, He S Y, Zhang Z W, Wang X C, Qian Y, Chen M B 2011 Acta Phys. Sin. 60 098110 (in Chinese) [吴宜勇, 岳龙, 胡建民, 蓝慕杰, 肖景东, 杨德庄, 何世禹, 张忠卫, 王训春, 钱勇, 陈鸣波 2011 60 098110]
[3] Hu J M, Wu Y Y, Xiao J D, Yang D Z, He S Y 2008 Sol. Energy Mater. Sol. Cells 92 1652
[4] Hu J M, Wang Y Y 2013 Radiation Damage Effects of Space Charged Particles for GaAs Solar Cells (Beijing: Chinese Atomic Energy Press) p96 (in Chinese) [胡建民, 王月媛 2013 GaAs太阳电池空间带电粒子辐照损伤效应(北京: 中国原子能出版社)第96页]
[5] Hu J M, Wu Y Y, Qian Y, Yang D Z, He S Y 2009 Acta Phys. Sin. 58 5051 (in Chinese) [胡建民, 吴宜勇, 钱勇, 杨德庄, 何世禹 2009 58 5051]
[6] Yue L, Wu Y Y, Zhang Y Q, Hu J M, Sun C Y, Hao M M, Lan M J 2014 Acta Phys. Sin. 63 188101 (in Chinese) [岳龙, 吴宜勇, 张延清, 胡建民, 孙承月, 郝明明, 蓝慕杰 2014 63 188101]
[7] Hu J M, Wu Y Y, Yang D Z, He S Y 2008 Nucl. Instr. Meth. Phys. Res. B 266 3577
[8] Hu J M, Wu Y Y, Zhang Z W, Yang D Z, He S Y 2008 Nucl. Instr. Meth. Phys. Res. B 266 267
[9] Zuleeg R, Lehovec K 1980 IEEE Trans. Nucl. Sci. 27 1343
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[1] Anspaugh B E 2010 Acta Energiae Sol. Sin. 31 1568 (in Chinese) [胡建民, 吴宜勇, 何松, 钱勇, 陈鸣波, 杨德庄 2010 太阳能学报 31 1568]
[2] Wu Y Y, Yue L, Hu J M, Lan M J, Xiao J D, Yang D Z, He S Y, Zhang Z W, Wang X C, Qian Y, Chen M B 2011 Acta Phys. Sin. 60 098110 (in Chinese) [吴宜勇, 岳龙, 胡建民, 蓝慕杰, 肖景东, 杨德庄, 何世禹, 张忠卫, 王训春, 钱勇, 陈鸣波 2011 60 098110]
[3] Hu J M, Wu Y Y, Xiao J D, Yang D Z, He S Y 2008 Sol. Energy Mater. Sol. Cells 92 1652
[4] Hu J M, Wang Y Y 2013 Radiation Damage Effects of Space Charged Particles for GaAs Solar Cells (Beijing: Chinese Atomic Energy Press) p96 (in Chinese) [胡建民, 王月媛 2013 GaAs太阳电池空间带电粒子辐照损伤效应(北京: 中国原子能出版社)第96页]
[5] Hu J M, Wu Y Y, Qian Y, Yang D Z, He S Y 2009 Acta Phys. Sin. 58 5051 (in Chinese) [胡建民, 吴宜勇, 钱勇, 杨德庄, 何世禹 2009 58 5051]
[6] Yue L, Wu Y Y, Zhang Y Q, Hu J M, Sun C Y, Hao M M, Lan M J 2014 Acta Phys. Sin. 63 188101 (in Chinese) [岳龙, 吴宜勇, 张延清, 胡建民, 孙承月, 郝明明, 蓝慕杰 2014 63 188101]
[7] Hu J M, Wu Y Y, Yang D Z, He S Y 2008 Nucl. Instr. Meth. Phys. Res. B 266 3577
[8] Hu J M, Wu Y Y, Zhang Z W, Yang D Z, He S Y 2008 Nucl. Instr. Meth. Phys. Res. B 266 267
[9] Zuleeg R, Lehovec K 1980 IEEE Trans. Nucl. Sci. 27 1343
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