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首页> 外文期刊>Electron Devices, IEEE Transactions on >Optimal Filling of the Intermediate Band in Idealized Intermediate-Band Solar Cells
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Optimal Filling of the Intermediate Band in Idealized Intermediate-Band Solar Cells

机译：理想化中频带太阳能电池中中频带的最佳填充

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摘要

The optimal filling of the intermediate band (IB) of an IB solar cell is investigated. Using models based on detailed balance principles, it is shown that the optimal filling varies with the size of the subband gaps, the absorptivity of the cell, and the degree of the overlap between the absorption coefficients as well as the mutual sizes of the absorption cross sections for transitions over the subband gaps. The results of calculations that show how nonoptimal filling affects the cell efficiency are also presented. In several cases, a deviation from the optimal filling will only result in small changes in the efficiency. However, cases where the efficiency is reduced dramatically due to nonoptimal filling are also identified. For some cases, the negative impact of nonoptimal filling can be reduced by increasing the absorptivity of the cell or, when the effect of photofilling is significant, by increasing the light concentration.
机译：研究了IB太阳能电池的中间带（IB）的最佳填充。使用基于详细平衡原理的模型，结果表明最佳填充随子带隙的大小，单元的吸收率，吸收系数之间的重叠程度以及吸收交叉的相互大小而变化。子带间隙过渡部分。还显示了计算结果，这些结果显示了非最佳填充如何影响电池效率。在某些情况下，偏离最佳填充量只会导致效率的微小变化。但是，也发现了由于不理想的填充而使效率大大降低的情况。在某些情况下，可以通过提高细胞的吸收率或在光填充效果显着时通过增加光浓度来减少非最佳填充的负面影响。

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