4.7 Article

An efficient non-fullerene acceptor based on central and peripheral naphthalene diimides

Journal

CHEMICAL COMMUNICATIONS
Volume 54, Issue 40, Pages 5062-5065

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc01779d

Keywords

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Funding

  1. SERB, New Delhi, India [SB/S1/IC-009/2014, IICT/Pubs./2018/086]
  2. CSIR, New Delhi
  3. University Grant Commission (UGC) - Faculty Research Program (India)
  4. Australian Research Council (ARC) [FT130100057]
  5. Alfred Deakin Fellowship Scheme at the Institute for Frontier Materials (IFM), Deakin University, Waurn Ponds, Victoria, Australia
  6. Australia India Institute (AII), New Delhi, India

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Through the coupling of central and terminal naphthalene diimide functionalities, a unique non-fullerene electron acceptor, coded as N10, was designed, synthesized, characterized and applied in solution-processable bulk-heterojunction devices. The target N10 displayed good solubility, excellent thermal stability and energy levels complementing those of the conventional donor polymer poly(3-hexyl thiophene) (P3HT). An excellent power conversion efficiency of 7.65% was obtained in simple BHJ devices (P3HT : N10 1 : 1.2), which is the highest observed so far for NDI core-based non-fullerene acceptors.

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