质子辐照下高效太阳电池输出特性及结构的优化研究

利用TCAD半导体器件仿真软件，详细分析了低能(1.8 keV)质子辐照剂量对低轨道卫星用高效插指背结背接触(IBC)单晶硅太阳电池转换效率的影响。通过转换效率及其退化特点的对比，得到质子辐照剂量与复合中心密度、陷阱密度之间的对应关系。在不同的质子辐照剂量情况下，深入分析了前表面场(FSF)结构和前表面浮空发射区结构(FFE)对太阳电池短路电流密度、开路电压及转换效率的影响，为质子辐照条件下太阳电池前表面结构提供了设计依据。仿真结果表明：当质子辐照剂量小于1×109 cm-2时，随着质子辐照剂量的增大，太阳电池转换效率几乎不变。当质子辐照剂量一定时，存在最优的FSF和FFE的掺杂浓度，使得太阳电池转换效率最高。在质子辐照剂量为0 cm-2和1×1010 cm-2时，FFE结构对应的峰值转换效率略低于FSF结构的情况。在质子辐照剂量为1×1011 cm-2时，FFE结构对IBC太阳电池转换效率的改善效果明显优于FSF结构的情况。

Abstract

The effect of the low energy (1.8 keV) proton radiation dose on the conversion efficiency of mono-crystalline silicon solar cells was analyzed in detail by TCAD semiconductor device simulation software. The relationship between the proton radiation dose and the recombination center density and trap density were given by comparison of conversion efficiency and degradation characteristics. In the case of different proton radiation doses, the effects of front surface field (FSF) structure and front surface floating emitter (FFE) structure on short-circuit current density, open circuit voltage and conversion efficiency of solar cells were analyzed in detail, providing design basis for the front surface structure of solar cells under proton radiation. The simulation results show that the conversion efficiency of the solar cell is almost unchanged with the increase of the proton irradiation dose when the proton irradiation dose is less than 1×109 cm-2.When the proton irradiation dose is constant, there is the optimal doping concentration of FSF and FFE, which makes the solar cell conversion efficiency highest. When the proton irradiation doses are 0 cm-2 and 1×1010 cm-2, the peak conversion efficiency of the FFE structure is slightly lower than that of the FSF structure. When the proton irradiation dose is 1×1011 cm-2, the improvement effect of the FFE structure on the conversion efficiency of IBC solar cells is significantly better than that of the FSF structure.

参考文献

[1] 吴凌远,任攀,付博,等.单晶硅太阳电池的电子辐照效应研究［J］.高能量密度物理,2014(4):139-144.

[2] 朱恒静.宇航大规模集成电路保证技术［M］.西安：西北工业大学出版社，2016：99.

[3] 姜柯.典型运放、比较器的电离与位移损伤效应［D］.北京：中国科学院大学,2015:24-30.

[4] Song M H, Wang D X, Bi J F, et al. Inverted metamorphic triple-junction solar cell and its radiation hardness for space applications［J］. Acta Physica Sinica, 2017, 66(18): 276-283.

[5] Chang X Y, Yao S, Zhang Q L, et al. Anti-radiation of space triple-junction solar cell based on distributed Bragg reflector structure［J］. Acta Physica Sinica, 2016, 65(10):m108801-1-108801-8.

[6] 邱岚,胡莉.高效插指背接触太阳电池质子辐照效应研究［J］.高技术通讯,2018,28(8):90-97.

[7] 赵洋,王泽来,张鹏,等.受主型杂质对p型单晶硅中少子衰减过程的影响［J］.半导体技术,2015,40(12):930-936.

[8] 王宏群.GEO卫星高压太阳电池阵技术应用研究［D］.长沙：国防科学技术大学,2015:36-44.

[9] 张巍,贾锐,孙昀,等.针对N型IBC太阳电池中背结模型的建立及优化［J］.太阳能学报,2015,36(5):1274-1277.

[10] 夏婷婷,周涛.前表面场结构参数对IBC太阳电池电学性能的影响［J］.高技术通讯,2018(2):171-178.

[11] 刘恩科,朱秉升,罗晋生.半导体物理学［M］.4版.北京：国防工业出版社,1994:149-155.

[12] Summers G P, Wolicki E A, Xapsos M A, et al. Energy dependence of proton displacement damage factors for bipolar transistors［J］. IEEE Transactions on Nuclear Science, 1986, 33(6): 1282-1286.

[13] 唐欣欣,罗文芸,王朝壮,等.低能质子在半导体材料Si和GaAs中的非电离能损研究［J］.物理学报,2008,57(2):1266-1270.

[14] Saha S K, Ferdaus S I, Reba S I, et al. Effect of field dependent mobility and simultaneous consideration of both SRH and auger recombination on the analytical modeling of internal quantum efficiency of a si-solar cell［J］. 2012, 58(11): 662-666.

[15] Caughey D M, Thomas R E. Carrier mobilities in silicon empirically related to doping and field［J］. Proceedings of the IEEE, 1967, 55(12): 2192-2193.

[16] Yang G, Ingenito A, Isabella O, et al. IBC c-Si solar cells based on ion-implanted poly-silicon passivating contacts［J］. Solar Energy Materials & Solar Cells, 2016, 158: 84-90.

[17] Burgers A R, Guillevin N, Mewe A A, et al. FFE IBC cells: impact of busbars on cell performance with circuit modelling［J］. Energy Procedia, 2015, 77: 21-28.

[18] Müller R, Reichel C, Benick J, et al. Ion implantation for all-alumina IBC solar cells with floating emitter［J］. Energy Procedia, 2014, 55: 265-271.

葛笑寒, 张磊. 质子辐照下高效太阳电池输出特性及结构的优化研究[J]. 人工晶体学报, 2020, 49(10): 1883. GE Xiaohan, ZHANG Lei. Optimization of the Output Characteristics and Structure of High Efficiency Solar Cells under Proton Irradiation[J]. Journal of Synthetic Crystals, 2020, 49(10): 1883.

质子辐照下高效太阳电池输出特性及结构的优化研究

关于本站 Cookie 的使用提示

全站搜索

质子辐照下高效太阳电池输出特性及结构的优化研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索