首页|Theoretical analysis on GaAs sub-cell doping concen-tration for triple-junction solar cells irradiated by proton based on TCAD simulation

Theoretical analysis on GaAs sub-cell doping concen-tration for triple-junction solar cells irradiated by proton based on TCAD simulation

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The degradation on the GaInP/GaAs/Ge triple-junction solar cells was irradiated by proton,and the solar cells with various GaAs sub-cell doping concentrations are modeled by the technology computer aided design(TCAD)simula-tion.The degradation results of related electrical parameters and external quantum efficiency(EQE)are studied.The degradation mechanism irradiated by proton is discussed.The short-circuit current,maximum power and conversion efficiency decrease with the increasing of GaAs sub-cell doping concentration.When the base doping concentration of GaAs sub-cell is 1×1016 cm-3,the degradation of short-circuit current is less than that of other base doping concentra-tions.Furthermore,under proton irradiation,with the increase of doping concentration of GaAs sub-cell,the open-circuit voltage first increases and then decreases.Meanwhile,when the base doping concentration of GaAs sub-cell is 2×1017 cm-3,the degradation of open-circuit voltage is less than that of other base doping concentrations.The research will provide the basic theories and device simulation method for GaInP/GaAs/Ge triple-junction solar cells radiation damage evaluation study and radiation hardening,and can provide guidance for the production of tri-ple-junction solar cells in orbit.

LI Junwei、JIA Weimin、SHI Chengying、WANG Zujun、LI Zhengcao

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Key Lab of Advanced Materials(MOE),School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China

Xi'an Research Institute of High-Technology,Xi'an 710025,China

Northwest Institute of Nuclear Technology,Xi'an 710024,China

国家自然科学基金国家自然科学基金国家重点基础研究发展计划(973计划)

11975135120050172020YEB1901800

2022

光电子快报(英文版)
天津理工大学

光电子快报(英文版)

EI
影响因子:0.641
ISSN:1673-1905
年,卷(期):2022.18(12)
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