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Diketopyrrolopyrrole-based narrow band gap donors for efficient solution-processed organic solar cells

  • Sushil S. Bagde
  • , Hanok Park
  • , Seon Nam Yang
  • , Sung Ho Jin
  • , Soo Hyoung Lee*
  • *Corresponding author for this work
  • Jeonbuk National University
  • Pusan National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

This study involves the development of two new small molecules comprising a diketopyrrolopyrrole (DPP) core flanked with donor units of triphenylamine (TPA-DPP-TPA) and fluorine (FL-DPP-FL) for application in bulk heterojunction (BHJ) organic solar cells (OSCs). The OSCs based on FL-DPP-FL and PC71BM exhibited a PCE of 1.73%, compared to 1.45% for that obtained from devices of TPA-DPP-TPA. The morphological studies reveal that the enhancement in OSCs of FL-DPP-FL is mainly attributed to the improved nanoscale film morphology of the FL-DPP-FL:PC71BM blend, which promoted the formation of smaller domains and greater donor-acceptor interpenetrated networks within the active layer.

Original languageEnglish
Pages (from-to)37-43
Number of pages7
JournalChemical Physics Letters
Volume630
DOIs
StatePublished - 2015.04.30

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Petroleum
  • Chemistry
  • Physics & Astronomy

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