超声退火形成片状PCBM堆积聚合物太阳电池研究

Study on Lamella PCBM Aggregation Polymer Solar Cells Using Ultrasonic Annealing

摘要:

采用超声退火方法制备了P3HT/PCBM聚合物有机太阳电池。测试结果表明: 超声退火40℃制备的电池能量转换效率最好, 最优器件的能量转换效率达到了5.16%, 这主要归因为超声退火40℃的电池薄膜内形成了片状PCBM堆积, 有效地提高了器件的电子迁移率和太阳能吸收效率。

Abstract:

Ultrasonic annealing approach was used to fabricate a P3HT∶PCBM polymer solar cell with the power conversion efficiency of 5.16%. Measurement results reveal the P3HT/PCBM blend film fabricated by ultrasonically annealing at 40℃ has a higher electron mobility, a higher absorption efficiency and a more balanced carrier transport in the active layer, which can be attributed to the lamella PCBM aggregation formed in the active layer.