电极材料对聚合物太阳能电池光学性能的影响

Influences of Electrode Materials on Optical Performance of the Polymer Solar Cells

利用基于传输矩阵法(Transfer matrix method,TMM)的光学模型系统地研究了金属电极材料(Ag、Al、Au)对聚合物太阳能电池光学性能的影响。研究表明,与传统铟锡化合物(Indium tin oxide,ITO)透明电极相比,以合适厚度的金属Ag膜作透明电极,可提高活性层对入射光子的吸收效率;同时,以Ag膜作背电极时,其相应的聚合物太阳能电池的效率优于以Al或者Au为背电极的电池的效率。

Optical modeling based on transfer matrix method（TMM） is employed to investigate the influences of metal electrode material（Ag, Al, Au） on the optical performance of the polymer solar cells（PSCs）. The results show that the absorption efficiency in the active layer for PSCs with Ag material as transparent electrode can be improved when compared with indium tin oxide（ITO） as transparent electrode if the thickness of the Ag transparent electrode is set optimally. In addition, the efficiency for PSCs with Ag as top electrode is significant superior to those with Al or Au as top metal electrode.