Improved spectral robustness of triple tandem solar cells by combined series/parallel interconnection
Improved spectral robustness of triple tandem solar cells by combined series/parallel interconnection
复制标题
通过组合串联/并联互连提高三重串联太阳能电池的光谱鲁棒性
DOI：
10.1063/1.1766091
复制
发表时间：
2004
影响因子：
3.2
通讯作者：
P. Würfel
中科院分区：
文献类型：
--
作者：
T. Trupke;P. Würfel
讨论了双端子三叠层太阳能电池内的各个太阳能电池的改进的互连。限制效率计算这种修改后的三重串联太阳能电池，其中两个串联连接的底部电池并联连接的顶部电池，提出和比较的结果，获得一个传统的完全串联电池。结果表明，采用改进的互连方案，即，后者在频谱上更稳健，这对于地面应用尤其重要。它还表明，从根本上说，高效率可以获得与此计划在更广泛的范围内的材料组合，相比串联连接的串联。给出了不同理想化程度下的极限效率计算，并讨论了实现该方案所涉及的一些技术问题。
An improved interconnection of individual solar cells within a two-terminal triple-tandem solar cell is discussed. Limiting efficiency calculations for this modified triple-tandem solar cell, in which two series-connected bottom cells are connected in parallel to the top cell, are presented and compared to the results that are obtained for a conventional fully series-connected tandem cell. It is shown that the variation of the limiting efficiency with changing illumination conditions is smaller with the improved interconnection scheme, i.e., the latter is spectrally more robust, which is particularly important for terrestrial applications. It is also shown that, fundamentally, high efficiencies may be obtained with this scheme over a much wider range of material combinations, compared to a series-connected tandem. The limiting efficiency calulations are presented for different degrees of idealization and some technical issues involved in the realization of the suggested scheme are discussed.