Improving the ordering and photovoltaic properties by extending π-conjugated area of electron-donating units in polymers with D-A structure

Ye Huang; Xia Guo; Feng Liu; Lijun Huo; Yuning Chen; Thomas P Russell; Charles C Han; Yongfang Li; Jianhui Hou

doi:10.1002/adma.201200995

Improving the ordering and photovoltaic properties by extending π-conjugated area of electron-donating units in polymers with D-A structure

Adv Mater. 2012 Jul 3;24(25):3383-9. doi: 10.1002/adma.201200995. Epub 2012 May 31.

Authors

Ye Huang¹, Xia Guo, Feng Liu, Lijun Huo, Yuning Chen, Thomas P Russell, Charles C Han, Yongfang Li, Jianhui Hou

Affiliation

¹ State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

PMID: 22648980
DOI: 10.1002/adma.201200995

Abstract

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(70) BM show a power conversion efficiency (PCE) of 7.81%, which is 25% higher than that of the parent PBDTTT-S.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electric Power Supplies
Electrons
Polymers / chemical synthesis
Polymers / chemistry*
Quantum Theory
Solar Energy*

Substances

Polymers