A graphene meta-interface for enhancing the stretchability of brittle oxide layers

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Oxide materials have recently attracted much research attention for applications in flexible and stretchable electronics due to their excellent electrical properties and their compatibility with established silicon semiconductor processes. Their widespread uptake has been hindered, however, by the intrinsic brittleness and low stretchability. Here we investigate the use of a graphene meta-interface to enhance the electromechanical stretchability of fragile oxide layers. Electromechanical tensile tests of indium tin oxide (ITO) layers on polymer substrates were carried out with in situ observations using an optical microscope. It was found that the graphene meta-interface reduced the strain transfer between the ITO layer and the substrate, and this behavior was well described using a shear lag model. The graphene meta-interface provides a novel pathway for realizing flexible and stretchable electronic applications based on oxide layers.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2016
Language
English
Article Type
Article
Keywords

TRANSPARENT CONDUCTIVE OXIDE; SHEAR LAG MODEL; THIN-FILMS; ELECTRICAL-RESISTANCE; ELECTRODES; SUBSTRATE; STRAIN; COATINGS; FRACTURE; CRACKING

Citation

NANOSCALE, v.8, no.9, pp.4961 - 4968

ISSN
2040-3364
DOI
10.1039/C5NR05412E
URI
http://hdl.handle.net/10203/208355
Appears in Collection
ME-Journal Papers(저널논문)
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