Analysis for nonradiative recombination loss and radiation degradation of Si space solar cells,Progress in Photovoltaics

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Analysis for nonradiative recombination loss and radiation degradation of Si space solar cells
Progress in Photovoltaics ( IF 8.0 ) Pub Date : 2020-09-24 , DOI: 10.1002/pip.3346
Masafumi Yamaguchi ₁ , Kan‐Hua Lee ₁ , Kenji Araki ₁ , Nobuaki Kojima ₁ , Yasuki Okuno ₂ , Mitsuru Imaizumi ₃

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Silicon space solar cells are currently attracting attention again for their relatively low‐cost feature with sufficient performance, and they are expected to resume into the space market especially by short‐term mission spacecraft designers. In this paper, efficiency potential of crystalline Si space solar cells is analyzed by considering external radiative efficiency (ERE), voltage and fill factor losses. Crystalline Si space solar cells have efficiency potential of more than 26% by realizing ERE of 20% from about 0.2% and normalized resistance of less than 0.05 from around 0.15. Nonradiative recombination and resistance losses in Si space solar cells are also discussed. Radiation degradation of Si space solar cells is also analyzed. Advanced Si solar cells such as passivated emitter, hetero‐junction, and back contact solar cells are expected to use as space solar cells. Potential of advanced Si solar cells for space applications is discussed from point view of radiation degradation.

中文翻译：

硅空间太阳能电池的无辐射复合损失和辐射降解分析

硅空间太阳能电池由于其相对低廉的特性和足够的性能，目前再次引起人们的关注，预计它们将重新进入太空市场，尤其是短期任务航天器设计师。在本文中，通过考虑外部辐射效率（ERE），电压和填充因子损耗来分析晶体硅空间太阳能电池的效率潜力。通过从约0.2％实现20％的ERE和从约0.15实现小于0.05的归一化电阻，晶体硅空间太阳能电池具有超过26％的效率潜力。还讨论了硅空间太阳能电池中的非辐射复合和电阻损耗。还分析了硅空间太阳能电池的辐射降解。先进的Si太阳能电池，例如钝化发射极，异质结，背面接触太阳能电池有望用作太空太阳能电池。从辐射退化的角度讨论了用于空间应用的先进硅太阳能电池的潜力。

更新日期：2020-09-24

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