Charge transport in organic photovoltaic (OPV) devices is often characterized by steady‐state mobilities. However, the suitability of steady‐state mobilities to describe charge transport has recently been called into question, and it has been argued that dispersion plays a significant role. In this paper, the importance of the dispersion of charge carrier motion on the performance of organic photovoltaic devices is investigated. An experiment to measure the charge extraction time under realistic operating conditions is set up. This experiment is applied to different blends and shows that extraction time is directly related to the geometrical average of the steady‐state mobilities. This demonstrates that under realistic operating conditions the steady‐state mobilities govern the charge extraction of OPV and gives a valuable insight in device performance.

中文翻译：

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稳态迁移率控制有机太阳能电池中的载流子提取

有机光伏（OPV）设备中的电荷传输通常以稳态迁移率为特征。但是，最近有人质疑稳态迁移率描述电荷传输的适用性，并且有人认为分散起着重要作用。在本文中，研究了载流子运动的分散对有机光伏器件性能的重要性。建立了在实际操作条件下测量电荷提取时间的实验。该实验适用于不同的混合物，表明提取时间与稳态迁移率的几何平均值直接相关。