论文标题
双吸收纤维薄膜太阳能电池，效率为34％
Double-absorber thin-film solar cell with 34% efficiency
论文作者
论文摘要
电源转换效率是更广泛采用太阳能电池模块的关键因素。薄膜太阳能电池便宜且易于制造，但是与结晶硅太阳能电池相比，它们的效率较低，需要改善。具有两个吸收层层的薄膜太阳能电池（而不是仅一个），带有带隙能的薄膜可以在较宽的光谱范围内捕获太阳能光子。使用300 nm厚的CIGS〜吸收层和870 nm厚的CZTSSE〜吸收剂层，前提是详细的光电模型预测了$ 34.45 \％$的效率，前提是两种吸收层的带隙能量的分级是最佳的。
Power-conversion efficiency is a critical factor for the wider adoption of solar-cell modules. Thin-film solar cells are cheap and easy to manufacture, but their efficiencies are low compared to crystalline-silicon solar cells and need to be improved. A thin-film solar cell with two absorber layers (instead of only one), with bandgap energy graded in both, can capture solar photons in a wider spectral range. With a 300-nm-thick CIGS~absorber layer and an 870-nm-thick CZTSSe~absorber layer, an efficiency of $34.45\%$ is predicted by a detailed optoelectronic model, provided that the grading of bandgap energy is optimal in both absorber layers.
