High-Efficiency All-Polymer Solar Cells Based on a Pair of Crystalline Low-Bandgap Polymers

Cheng Mu, Peng Liu, Wei Ma*, Kui Jiang, Jingbo Zhao, Kai Zhang, Zhihua Chen, Zhanhua Wei, Ya Yi, Jiannong Wang, Shihe Yang, Fei Huang, Antonio Facchetti, Harald Ade, He Yan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

230 Scopus citations

Abstract

All-polymer solar cells based on a pair of crystalline low-bandgap polymers (NT and N2200) are demonstrated to achieve a high short-circuit current density of 11.5 mA cm-2 and a power conversion efficiency of up to 5.0% under the standard AM1.5G spectrum with one sun intensity. The high performance of these NT:N2200-based cells can be attributed to the low optical bandgaps of the polymers and the reasonably high and balanced electron and hole mobilities of the NT:N2200 blends due to the crystalline nature of the two polymers.

Original languageEnglish (US)
Pages (from-to)7224-7230
Number of pages7
JournalAdvanced Materials
Volume26
Issue number42
DOIs
StatePublished - Nov 1 2014

Keywords

  • all polymer solar cell
  • domain size
  • low bandgap polymer
  • resonant soft X-ray scattering

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • General Materials Science

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