Continuous Melt-Drawing of Highly Aligned Flexible and Stretchable Semiconducting Microfibers for Organic Electronics

Yan Zhao, Aristide Gumyusenge, Jiazhi He, Ge Qu, William W. McNutt, Yuan Long, Hongyi Zhang, Libai Huang, Ying Diao, Jianguo Mei

Research output: Contribution to journalArticlepeer-review

Abstract

A scalable and green approach to manufacture semiconducting microfibers from polymer melts has been demonstrated. The polymer chains are highly aligned along the microfiber's long axis direction and exhibit highly anisotropic optical properties. In addition, the polymer microfibers show good flexibility and stretchability with a yield point around 10% under a reversible stress and can be stretched up to 180% without breaking. These features are desired for future flexible, stretchable, and conformable electronics. The origin of this stretchability is studied with diketopyrrolopyrrole derivatives using different conjugation break spacers and side chains. In addition, stretchable conducting microfibers can be obtained by doping with FeCl3, which are further evaluated as organic conductors and source/drain electrodes in organic field-effect transistors.

Original languageEnglish (US)
Article number1705584
JournalAdvanced Functional Materials
Volume28
Issue number4
DOIs
StatePublished - Jan 24 2018

Keywords

  • melt drawing
  • organic electronics
  • polymer microfibers
  • semiconducting polymers

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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