Graphene oxide scrolls on hydrophobic substrates fabricated by molecular combing and their application in gas sensing
Date of Issue2013
School of Materials Science and Engineering
Well-aligned graphene oxide (GO) scrolls are prepared through the controlled folding/scrolling of single-layer GO sheets using molecular combing on hydrophobic substrates, such as aged gold substrate, polydimethylsiloxane film, poly(L-lactic acid) film, and octadecyltrimethoxysilane-modified silicon dioxide. As a proof of concept, the gas sensor fabricated with a single reduced GO scroll is used to detect NO2 gas with a concentration as low as 0.4 ppm.
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