Journal
MATERIALS RESEARCH BULLETIN
Volume 90, Issue -, Pages 175-181Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2017.02.028
Keywords
Self-healing flexible conductor; Thin films; Copper nanowire; Polyurethane
Categories
Funding
- National Natural Science Foundation of China [51374230]
- Key Research and Development Project of Shandong Province [2015GGX107011]
- Fundamental Research Funds for the Central Universities in China [15CX05028A]
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A self-healing flexible transparent conductor comprising a core-shell copper nanowire network and healable polyurethane sheath was developed. The polyurethane pre-polymer containing furan rings was cross-linked with N,N'-(4,4'-methylenediphenyl) dimaleimide via a Diels-Alder reaction to form the healable network polymer. This thin polymer layer solders the copper nanowires and confines the nanowire network on the substrate surface. The nanocomposite conductor exhibits a sheet resistance of 22.3 Omega sq(-1) with 66.5% transmittance at 550 nm. 98% of the surface conductivity can be recovered in 3 min at 120 degrees C, and the damaging-healing behavior could be repeated 5 times at the same position. The present work provides a simple way to fabricate advanced flexible transparent conductors. (C) 2017 Elsevier Ltd. All rights reserved.
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