Analytic expressions for the JV-characteristics of three types of multijunction configurations are derived. From these, expressions for the short-circuit current, open-circuit voltage, and voltage at the maximum power point are found for multiterminal devices, and for series-connected tandem stacks. For voltage-matched devices, expressions for the optimal ratio of the number of bottom cells to the number of top cells are established. Luminescent coupling is incorporated throughout the article. It should be highlighted that the maximum power point of a series-connected tandem stack is described, with good accuracy for all interesting band gap combinations, by a single analytic expression. Although the modeling is carried out assuming devices that operate at the radiative limit, it is suggested that the results may form a framework that can be further developed, and adapted to describe nonideal devices as well.

中文翻译：

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多结太阳能电池建模的分析方法


推导了三种类型多结配置的 JV 特性的解析表达式。由此，可以找到多端子设备和串联串联堆栈的短路电流、开路电压和最大功率点电压的表达式。对于电压匹配器件，建立了底部电池数量与顶部电池数量的最佳比率的表达式。发光耦合贯穿整篇文章。应该强调的是，串联串联堆栈的最大功率点是通过单个解析表达式来描述的，对于所有有趣的带隙组合都具有良好的准确性。尽管建模是假设设备在辐射极限下运行进行的，但建议结果可能形成一个可以进一步开发的框架，并适用于描述非理想设备。