[21p-C601-1~23] 12.5 Organic and hybrid solar cells

6:00 PM - 6:15 PM JST(9:00 AM - 9:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[21p-C601-17] Fill factor in fullerene- and nonfullerene-based polymer solar cells

〇Jihun Jeon¹, Hyung Do Kim¹, Hideo Ohkita¹ (1.Kyoto Univ.)

Keywords:

Polymer solar cells,Fill factor,Charge transport properties

In this study, we have discussed the dependence of the active layer thickness in fullerene- and nonfullerene-based polymer solar cells with different electron mobilities. Interestingly, the fill factor was drastically degraded for fullerene-based polymer solar cell but it remained the same for nonfullerene-based polymer solar cell along with increasing thickness of the active layer. This is mainly because chare collection efficiency is significantly decreased for the fullerene-based polymer solar cell. Furthermore, we will discuss the charge dynamics for these polymer solar cells in order to clarify the origin of the decrease in the charge collection efficiency.