A phenothiazine-diketopyrrolopyrrole polymer: Synthesis and photovoltaic applications

  • Wooree Jang
  • , Fuzhen Lyu
  • , Hanok Park
  • , Qing Bo Meng
  • , Soo Hyoung Lee
  • , Youn Sik Lee*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

A phenothiazine-diketopyrrolopyrrole polymer (PPT-DPP) with a thiophene spacer was synthesized with a number-average molecular weight of 17 600. The new polymer exhibited an optical band-gap of 1.63 eV and a highest occupied molecular orbital energy level of -5.20 eV. Photovoltaic devices were fabricated using the polymer and [6,6]-phenyl C71 butyric acid methyl ester (PC 71BM) with the configuration ITO/PEDOT:PSS/PPT-DPP:PC 71BM/LiF/Al. The polymer-based devices exhibited power conversion efficiencies as high as 1.8%. Based on atomic force microscopy data, the device performance was related to the morphology of the active layers.

Original languageEnglish
Pages (from-to)119-123
Number of pages5
JournalChemical Physics Letters
Volume584
DOIs
StatePublished - 2013

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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