A Large-Bandgap Conjugated Polymer for Versatile Photovoltaic Applications with High Performance

Maojie Zhang; Xia Guo; Wei Ma; Harald Ade; Jianhui Hou

doi:10.1002/adma.201502110

A Large-Bandgap Conjugated Polymer for Versatile Photovoltaic Applications with High Performance

Adv Mater. 2015 Aug 19;27(31):4655-60. doi: 10.1002/adma.201502110. Epub 2015 Jul 14.

Authors

Maojie Zhang^{1

2}, Xia Guo^{1

2}, Wei Ma^{3

4}, Harald Ade⁴, Jianhui Hou¹

Affiliations

¹ State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
² Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
³ State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
⁴ Department of Physics, North Carolina State University, Raleigh, NC, 27695, USA.

PMID: 26173152
DOI: 10.1002/adma.201502110

Abstract

A new copolymer PM6 based on fluorothienyl-substituted benzodithiophene is synthesized and characterized. The inverted polymer solar cells based on PM6 exhibit excellent performance with Voc of 0.98 V and power conversion efficiency (PCE) of 9.2% for a thin-film thickness of 75 nm. Furthermore, the single-junction semitransparent device shows a high PCE of 5.7%.

Keywords: large bandgap; molecular energy levels; polymer solar cells; semitransparent.