4.7 Article

A PTB7-based narrow band-gap conjugated polyelectrolyte as an efficient cathode interlayer in PTB7-based polymer solar cells

Journal

CHEMICAL COMMUNICATIONS
Volume 53, Issue 12, Pages 2005-2008

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc09274h

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Funding

  1. National Natural Science Foundation of China [51403222, 61474125]
  2. National Young Top-Notch Talent Program of China
  3. Ningbo Science and Technology Bureau [2014B82010]

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A PTB7-based cationic narrow band-gap polyelectrolyte, named PTB7-NBr, has been designed and synthesized as a cathode interfacial material for polymer solar cells. PTB7-NBr exhibits excellent cathode interfacialmodification in solar cells with PTB7 and PTB7-Th as donor polymer and a high PCE of 9.24% was achieved.

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