An alternative approach to simulate the power conversion efficiency (η_PCE) of bulk heterojunction organic solar cells (BHJ OSCs), as a product of efficiencies of absorption (η_abs), dissociation (η_dis), and extraction (η_ext), is presented. Although η_abs and η_dis do not directly contribute to the simulation of η_PCE, the approach enables us in understanding their roles in optimizing the power conversion efficiency of BHJ OSCs. This method is applied to simulate η_PCE as a function of the thickness of active layer for three different BHJ OSC structures, one with a fullerene acceptor and two with two different nonfullerene acceptors. The results are found to be in good agreement with those from the previous simulation and experimental works and are expected to be useful in optimizing the thickness of the active layer.

中文翻译：

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模拟大容量异质结有机太阳能电池功率转换效率的另一种方法

另一种方法，以模拟功率转换效率（η _PCE本体异质结有机太阳能电池（BHJ OSC）中的），作为吸收（的效率的乘积η _ABS），解离（η _DIS），并且提取（η _EXT），是提出了。虽然η _ABS和η _DIS不直接贡献的模拟η _PCE，该方法使我们了解在优化BHJ有机太阳能电池的能量转换效率中的作用。这个方法被应用到模拟η _PCE取决于三种不同的BHJ OSC结构的有源层厚度，一种具有富勒烯受体，而两种具有两种不同的非富勒烯受体。发现结果与先前的仿真和实验工作的结果非常一致，并有望用于优化有源层的厚度。