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Continuous Melt‐Drawing of Highly Aligned Flexible and Stretchable Semiconducting Microfibers for Organic Electronics
Author(s) -
Zhao Yan,
Gumyusenge Aristide,
He Jiazhi,
Qu Ge,
McNutt William W.,
Long Yuan,
Zhang Hongyi,
Huang Libai,
Diao Ying,
Mei Jianguo
Publication year - 2018
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201705584
Subject(s) - microfiber , materials science , conformable matrix , organic electronics , stretchable electronics , flexible electronics , polymer , electronics , nanotechnology , electrode , transistor , composite material , electrical engineering , voltage , engineering , chemistry
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 FeCl 3 , which are further evaluated as organic conductors and source/drain electrodes in organic field‐effect transistors.