An Air-Stable DPP-thieno-TTF Copolymer for Single-Material Solar Cell Devices and Field Effect Transistors

Sasikumar Arumugam, Diego Cortizo-Lacalle, Stephan Rossbauer, Simon Hunter, Alexander L. Kanibolotsky, Anto R. Inigo*, Paul A. Lane, Thomas Anthopoulos, Peter J. Skabara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Following an approach developed in our group to incorporate tetrathiafulvalene (TTF) units into conjugated polymeric systems, we have studied a low band gap polymer incorporating TTF as a donor component. This polymer is based on a fused thieno-TTF unit that enables the direct incorporation of the TTF unit into the polymer, and a second comonomer based on the diketopyrrolopyrrole (DPP) molecule. These units represent a donor-acceptor copolymer system, p(DPP-TTF), showing strong absorption in the UV-visible region of the spectrum. An optimized p(DPP-TTF) polymer organic field effect transistor and a single material organic solar cell device showed excellent performance with a hole mobility of up to 5.3 × 10-2 cm2/(V s) and a power conversion efficiency (PCE) of 0.3%, respectively. Bulk heterojunction organic photovoltaic devices of p(DPP-TTF) blended with phenyl-C71-butyric acid methyl ester (PC71BM) exhibited a PCE of 1.8%.

Original languageEnglish (US)
Pages (from-to)27999-28005
Number of pages7
JournalACS Applied Materials and Interfaces
Volume7
Issue number51
DOIs
StatePublished - Dec 30 2015

Keywords

  • DPP-TTF polymer
  • OFET
  • OPV
  • hole mobility
  • single material OPV

ASJC Scopus subject areas

  • Materials Science(all)

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