Abstract. We investigate the role of luminescence effects on the analysis of solar cell properties. InGaP/GaAs tandem solar cells fabricated using hydride vapor phase epitaxy have a luminescent coupling (LC) efficiency of 0.6% from the top to the bottom subcell. We investigate the impact of LC on subcell current–voltage curve analysis using electroluminescence (EL) measurements. EL efficiency measurements were performed using a reference InGaP single-junction device. It was found that the luminescence extraction from the top subcell, and therefore its luminescence collection efficiency, is lower than that from the bottom subcell. This is due to LC from the top subcell to the bottom subcell. By considering the luminescence extractions of each subcell, more reasonable subcell voltages than those found by conventional methods can be obtained.

中文翻译：

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发光对 InGaP/GaAs 串联太阳能电池中子电池电流-电压分析的影响

摘要。我们研究了发光效应对太阳能电池特性分析的作用。使用氢化物​​气相外延制造的 InGaP/GaAs 串联太阳能电池从顶部到底部子电池的发光耦合 (LC) 效率为 0.6%。我们使用电致发光 (EL) 测量研究了 LC 对子电池电流-电压曲线分析的影响。EL 效率测量是使用参考 InGaP 单结器件进行的。发现来自顶部子电池的发光提取以及因此其发光收集效率低于来自底部子电池的发光。这是由于从顶部子电池到底部子电池的 LC。通过考虑每个子电池的发光提取，可以获得比常规方法发现的更合理的子电池电压。