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首页> 外文会议>International Conference on Concentrator Photovoltaic Systems >Performance and Failure Analysis of Concentrator Solar Cells after Intensive Stressing with Thermal, Electrical, and Combined Load
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Performance and Failure Analysis of Concentrator Solar Cells after Intensive Stressing with Thermal, Electrical, and Combined Load

机译：耐热，电气和组合负荷密集胁迫后聚光太阳能电池的性能和故障分析

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In this work, we investigated the impact of intensive heat loads on concentrator solar cells assemblies. As test samples, we employed lattice-matched and lattice-mismatched triple-junction solar cells made of GaInP/GaInAs/Ge. The thermal loads were induced by different manners. We used drying cabinets, external power supplies, and a combination of both to achieve maximum test temperatures of 180 °C. For the performance analysis, we utilized flash light solar simulators and an electroluminescence (EL) imaging tool. Our experiments revealed a significant difference depending on the applied manner of heating. The highest impact was observed for the pure heat treatment in drying cabinets. This was particularly visible in the spatial EL images, but also in the IV curves. In contrast, running the concentrator solar cells as forward-biased diodes using an external current supply of 2000 mA, which corresponds to 2000 suns, did not lead to any significant changes in EL and IV curves. However, deformation of the front metallization was observed. In conclusion, pure heat treatment can be considered as a cost-efficient alternative to pinpoint weak points in solar cell receivers.
机译：在这项工作中，我们调查了集中热负荷对集中器太阳能电池组件的影响。作为测试样品，我们采用了由GaInP / GaInas / Ge制成的晶格匹配和晶格错配的三界太阳能电池。通过不同的方式诱导热载荷。我们使用干燥柜，外部电源，以及实现180°C的最大测试温度的组合。对于性能分析，我们利用了闪光光太阳能模拟器和电致发光（EL）成像工具。我们的实验根据所应用的加热方式揭示了显着的差异。在干燥柜中纯热处理观察到最高影响。这在空间EL图像中特别可见，而且在IV曲线中尤其可见。相比之下，使用2000 mA的外部电流运行浓缩器太阳能电池作为前向偏置二极管，这对应于2000个太阳，不会导致EL和IV曲线的任何显着变化。然而，观察到前金属化的变形。总之，纯热处理可以被认为是一种成本有效的替代方案，以确定太阳能电池接收器中的弱点。

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