中文摘要：

在这份报纸，我们调查了 photogenerated 费用搬运人的再结合动力学在一 poly (3-hexylthiophene )(P3HT ):[6,6 ] 有在溶剂退火前后的 1:1 的施主领受人比率的 -phenyl-C61-butyric 酸甲基酉旨(PC61BM ) 混合系统处理。短暂光电流和 photovoltage 大小的技术被使用，并且费用搬运人是由在房间温度(298 K ) 的 7 ns 激光脉搏的 photogenerated。在短暂光电流测量，我们观察到在浸透的一些差别在 P3HT 提取了充电: 有不同力量效率的 PCBM 太阳能电池。另外，双分子的再结合系数被发现是 3.5 湩愠 ? 慨瑬湩吗？

英文摘要：

In this paper, we investigated the recombination dynamics of photogenerated charge carriers in a poly（3-hexylthiophene） （P3HT）：[6,6]-phenyl-Coj-butyric acid methyl ester （PC61BM） blend system with donor-acceptor ratio of 1 ： 1 before and after sol- vent annealing treatment. The technique of transient photocurrent and photovoltage measurements were used, and charge carriers were photogenerated by a 7 ns laser pulse at room temperature （298 K）. In transient photocurrent measurement, we observed some differences in the saturation extracted charge in P3HT：PCBM solar cells with different power efficiencies. In addition, the bimo- lecular recombination coefficient fl is found to be 3.5x10-13 cm3 s-1 for annealed devices, while 9.5x10-12 cm3 s-1 for as-cast de- vices. In the transient photovoltage measurement, we found that the photovoltage decay can be fitted by power-law equation at long time scale. The exponent parameter α is 2.6 for annealed devices, which can be described as trap-free bimolecular recombi- nation; α is 1.76 for as-cast device due to the trap-limited bimolecular recombination. These experimental results indicate that the nanomorphology of active layer indeed have influence on charge carriers dynamics in P3HT：PCBM blend systems.