Measurement of the limiting subcell in multijunction space solar devices by restricted‐wavelength‐range illumination,Progress in Photovoltaics

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Measurement of the limiting subcell in multijunction space solar devices by restricted‐wavelength‐range illumination
Progress in Photovoltaics ( IF 8.0 ) Pub Date : 2018-06-19 , DOI: 10.1002/pip.3018
Francesco Arcadi ₁ , Jacopo Parravicini ₁ , Roberta Campesato ₂ , Mariacristina Casale ₂ , Erminio Greco ₂ , Simona Binetti ₁

Affiliation

During their employment in space applications, InGaP/InGaAs/Ge‐based multijunction solar cells undergo strong particle bombardments that decrease their performances. As InGaP is more resistant to radiation, the whole device is usually designed in “top‐limited” configuration. Then the development of high‐efficiency and reliable devices needs standard techniques for identifying the limiting subcell before and after irradiation. We here present a specific method to determine the limiting subcell and matching current in multijunction solar cell. This approach is based on using simultaneously a solar simulator and a suitable supplemental lamp for illuminating the cell in a restricted wavelength range where the top subcell only responds. The technique is tested on beginning‐of‐life and irradiated 3‐junction InGaP/InGaAs/Ge solar cells, and its reliability is discussed.

中文翻译：

受限波长范围照明在多结空间太阳能设备中限制子电池的测量

基于InGaP / InGaAs / Ge的多结太阳能电池在航天应用中受到强烈的粒子轰击，从而降低了其性能。由于InGaP更耐辐射，因此整个设备通常设计为“顶部受限”配置。因此，高效，可靠设备的开发需要标准技术来确定辐照前后的限制性子细胞。我们在这里提出一种确定多结太阳能电池中的极限子电池和匹配电流的特定方法。该方法基于同时使用太阳能模拟器和合适的辅助灯，以在顶部子电池仅响应的受限波长范围内照亮该电池。该技术已在寿命开始和辐照的三结InGaP / InGaAs / Ge太阳能电池上进行了测试，

更新日期：2018-06-19

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