Energetic disorder induced leakage current in organic bulk heterojunction solar cells: comprehending the ultra-high open circuit voltage loss at low temperatures

Wenchao Yang, Yongsong Luo, Pengfei Guo +2

In organic bulk heterojunction solar cells, the open circuit voltage ($V_{\mathrm{oc}}$) suffers from an ultra-high loss at low temperatures. In this work we investigate the origin o…