To understand the complex behaviors of photogenerated charge carriers within polymer-based bulk-heterojunction-type solar cells, the charge-carrier photogeneration and extraction dynamics are simultaneously estimated using a transient photocurrent technique under various external-bias voltages, and a wide range of excitation intensities are analyzed. For this purpose, conventional devices with 80 nm thick active layers consisting of a blend of representative P3HT and PTB7 electron-donating polymers and proper electron-accepting fullerene derivatives were used. After the correction for the saturation behavior at a high excitation-intensity range nearby the regime of the space charge-limited current, the incident-photon-density-dependent maximum photocurrent densities at the initial peaks are discussed as the proportional measures of the charge-carrier-photogeneration facility. By comparing the total number of the extracted charge carriers to the total number of the incident photons and the number of the initially photogenerated charge carriers, the external quantum efficiencies as well as the extraction quantum efficiencies of the charge-carrier collection during a laser-pulse-induced transient photocurrent process were obtained. Subsequently, the charge-carrier concentration-dependent mobility values were obtained, and they are discussed in consideration of the additional influences of the charge-carrier losses from the device during the charge-carrier extraction that also affects the photocurrent-trace shape.

为了了解聚合物基体异质结型太阳能电池中光生电荷载流子的复杂行为，使用瞬态光电流技术在各种外部偏置电压和大范围激发下同时估算了电荷载流子的光生和提取动力学分析强度。为此目的，使用具有80nm厚的活性层的常规装置，该活性层由代表性的P3HT和PTB7给电子体聚合物与合适的电子接受富勒烯衍生物的混合物组成。在空间激发限制电流附近的高激发强度范围内对饱和行为进行校正后，讨论了初始峰处与入射光子密度有关的最大光电流密度，作为载流子光电生成设备的比例度量。通过将提取的载流子总数与入射光子总数和初始光生载流子总数进行比较，可以得出激光脉冲过程中载流子收集的外部量子效率和提取量子效率。获得了诱导的瞬时光电流过程。随后，获得了与电荷载流子浓度有关的迁移率值，并考虑了电荷载流子提取过程中来自器件的电荷载流子损耗的其他影响，这些影响也影响了光电流走线的形状，对它们进行了讨论。通过将提取的载流子总数与入射光子总数和初始光生载流子总数进行比较，可以得出激光脉冲过程中载流子收集的外部量子效率以及提取量子效率。获得了诱导的瞬时光电流过程。随后，获得了与电荷载流子浓度有关的迁移率值，并考虑了电荷载流子提取过程中来自器件的电荷载流子损耗的其他影响，这些影响也影响了光电流走线的形状，对它们进行了讨论。通过将提取的载流子总数与入射光子总数和初始光生载流子总数进行比较，可以得出激光脉冲过程中载流子收集的外部量子效率和提取量子效率。获得了诱导的瞬时光电流过程。随后，获得了与电荷载流子浓度有关的迁移率值，并考虑了电荷载流子提取过程中来自器件的电荷载流子损耗的其他影响，这些影响也影响了光电流走线的形状，对它们进行了讨论。获得了在激光脉冲诱导的瞬态光电流过程中电荷载流子收集的外部量子效率以及提取量子效率。随后，获得了与电荷载流子浓度有关的迁移率值，并考虑了电荷载流子提取过程中来自器件的电荷载流子损耗的其他影响，这些影响也影响了光电流走线的形状，对它们进行了讨论。获得了在激光脉冲诱导的瞬态光电流过程中电荷载流子收集的外部量子效率以及提取量子效率。随后，获得了与电荷载流子浓度有关的迁移率值，并考虑了电荷载流子提取过程中来自器件的电荷载流子损耗的其他影响，这些影响也影响了光电流走线的形状，对它们进行了讨论。