Manipulating aggregation and molecular orientation in all-polymer photovoltaic cells

Long Ye; Xuechen Jiao; Meng Zhou; Shaoqing Zhang; Huifeng Yao; Wenchao Zhao; Andong Xia; Harald Ade; Jianhui Hou

doi:10.1002/adma.201503218

Manipulating aggregation and molecular orientation in all-polymer photovoltaic cells

Adv Mater. 2015 Oct 21;27(39):6046-54. doi: 10.1002/adma.201503218. Epub 2015 Aug 28.

Authors

Long Ye¹, Xuechen Jiao², Meng Zhou³, Shaoqing Zhang¹, Huifeng Yao¹, Wenchao Zhao¹, Andong Xia³, Harald Ade², Jianhui Hou¹

Affiliations

¹ State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China.
² Department of Physics, North Carolina State University, Raleigh, NC, 27695, USA.
³ Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.

PMID: 26315155
DOI: 10.1002/adma.201503218

Abstract

Manipulating molecular orientation at the donor/acceptor interface is the key to boosting charge separation properties and efficiencies of anisotropic-materials-based organic photovoltaics (OPVs). By replacing the polymeric donor PBDTBDD with its 2D-conjugated polymer PBDTBDD-T, the power conversion efficiency of OPVs featuring the anisotropic polymer acceptor PNDI is drastically boosted from 2.4% up to 5.8%.

Keywords: 2D-conjugated polymers; anisotropy; interfaces; molecular orientation; polymer solar cells.