Critical issues in the design of polycrystalline, thin‐film tandem solar cells
Critical issues in the design of polycrystalline, thin‐film tandem solar cells
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多晶薄膜串联太阳能电池设计中的关键问题
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
R. Noufi
中科院分区：
文献类型：
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作者：
T. Coutts;J. Ward;D. Young;K. Emery;T. Gessert;R. Noufi
我们使用经验技术对薄膜串联太阳能电池的效率进行建模，并计算这些假设设备的性能范围的近似上限。显示约为 28.2%，没有由于器件前面的非活动层或其他寄生源造成的损失。将反向饱和电流密度值降低十倍，使无损效率绝对值提高约 4%。这一变化还极大地拓宽了顶部和底部电池带隙的范围，从而使效率超过 25%（项目目标）。这些观察结果强调了未来研究重点是全面了解重组损失的至关重要性。
We use an empirical technique for modeling the efficiency of thin‐film tandem solar cells and calculate an approximate upper limit on the range of performance of these hypothetical devices. This is shown to be approximately 28.2%, without losses due to inactive layers at the front of the device, or other parasitic sources. Reduction of the value of the reverse saturation current density by a factor of ten, increases the lossless efficiency by approximately 4% absolute. This change also greatly broadens the range of top and bottom cell bandgaps that would lead to efficiencies greater than 25%, the project goal. These observations emphasize the critical importance of focusing future research on gaining a thorough understanding of recombination losses.