[21p-W531-1~8] Present Situation and Future Prospects of Organic Solar Cells

[21p-W531-5] Efficient All-Polymer Solar Cells Prepared by Donor/Acceptor Polymer Blends

〇Hiroaki Benten¹, Daisuke Mori¹, Hideo Ohkita¹, Shinzaburo Ito¹ (1.Kyoto Univ.)

Keywords:polymer solar cell,conjugated polymer,polymer blend

All-polymer solar cells based on a blend of two types of conjugated polymers acting as an electron donor (hole transport) and acceptor (electron transport) have recently attracted much attention because they have numerous potential advantages over conventional polymer/fullerene blend solar cells. While the best power conversion efficiency (PCE) five years ago barely reached values higher than 2%, PCEs beyond 8% are state of the art today and the gap in efficiency between all-polymer and polymer/fullerene systems has closed very rapidly. Here, we will provide an overview on recent progress in the performance of all-polymer solar cells.