公开(公告)号：WO2021142656A1

公开(公告)日：2021-07-22

申请号：PCT/CN2020/072218

申请日：2020-01-15

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY.

Inventor： HE, Feng ,  CHAO, Pengjie ,  CHEN, Hui

IPC: C08G61/12 ,  H01L51/46

Abstract: Through the strategy of cyclohexane-1, 4-dione embedded into thieno [3, 4-b] thiophene unit, a highly electron-deficient core (TTDO) is synthesized and the corresponding donor polymer (PBTT-F) is also been developed. The nonfullerene photovoltaic device based on this new donor polymer exhibited an outstanding PCE of 16.1%with a very high fill factor of 77.1%, which demonstrate it a very promising donor for high performance solar cells.