Communication

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

  1. Ye Huang1,
  2. Xia Guo1,
  3. Feng Liu3,
  4. Lijun Huo1,
  5. Yuning Chen1,
  6. Thomas P. Russell3,*,
  7. Charles C. Han1,
  8. Yongfang Li2,*,
  9. Jianhui Hou1,*

Article first published online: 31 MAY 2012

DOI: 10.1002/adma.201200995

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 25, pages 3383–3389, July 3, 2012

Additional Information

How to Cite

Huang, Y., Guo, X., Liu, F., Huo, L., Chen, Y., Russell, T. P., Han, C. C., Li, Y. and Hou, J. (2012), Improving the Ordering and Photovoltaic Properties by Extending π–Conjugated Area of Electron-Donating Units in Polymers with D-A Structure. Adv. Mater., 24: 3383–3389. doi: 10.1002/adma.201200995

Author Information

  1. 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

  2. 2

    CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

  3. 3

    Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA

*Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA

Publication History

  1. Issue published online: 22 JUN 2012
  2. Article first published online: 31 MAY 2012
  3. Manuscript Revised: 15 APR 2012
  4. Manuscript Received: 9 MAR 2012

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Keywords:

  • low bandgap polymers;
  • polymer solar cells;
  • two-dimensional;
  • order structure
Thumbnail image of graphical 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 PC70BM show a power conversion efficiency (PCE) of 7.81%, which is 25% higher than that of the parent PBDTTT-S.

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