Improving the Ordering and Photovoltaic Properties by Extending π-Conjugated Area of Electron-Donating Units in Polymers with D-A Structure

被引:301
作者
Huang, Ye [3 ]
Guo, Xia [3 ]
Liu, Feng [1 ]
Huo, Lijun [3 ]
Chen, Yuning [3 ]
Russell, Thomas P. [1 ]
Han, Charles C. [3 ]
Li, Yongfang [2 ]
Hou, Jianhui [3 ]
机构
[1] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA
[2] Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
关键词
low bandgap polymers; polymer solar cells; two-dimensional; order structure; HETEROJUNCTION SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; DESIGN; DONOR; EFFICIENCY; ORGANIZATION; ENHANCEMENT; DENSITY; PACKING; ATOM;
D O I
10.1002/adma.201200995
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A systematic molecular design process from PBDTTT-S to PBDTDTTT-S-T, a high-performance semiconducting polymer for organic photovoltaics, has been achieved by enhancing structural order, self-assembly and carrier mobility. Solar cells made from PBDTDTTT-S-T blended with PC 70BM show a power conversion efficiency (PCE) of 7.81%, which is 25% higher than that of the parent PBDTTT-S. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:3383 / 3389
页数:7
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