Thermoelectric Properties of Solution-Processed n-Doped Ladder-Type Conducting Polymers

Suhao Wang, Hengda Sun, Ujwala Ail, Mikhail Vagin, Per O. Å. Persson, Jens Wenzel Andreasen, Walter Thiel, Magnus Berggren, Xavier Crispin, Daniele Fazzi, Simone Fabiano

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Ladder-type "torsion-free" conducting polymers (e.g., polybenzimidazobenzophenanthroline (BBL)) can outperform "structurally distorted" donor-acceptor polymers (e.g., P(NDI2OD-T2)), in terms of conductivity and thermoelectric power factor. The polaron delocalization length is larger in BBL than in P(NDI2OD-T2), resulting in a higher measured polaron mobility. Structure-function relationships are drawn, setting material-design guidelines for the next generation of conducting thermoelectric polymers.
Original languageEnglish
JournalAdvanced Materials
Issue number48
Pages (from-to)10764–10771
Number of pages8
Publication statusPublished - 2016


  • Broken symmetry DFT
  • Conducting polymers
  • Ladder-type
  • N-doping
  • Polarons

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