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Amin Salehi-Khojin, David Estrada, Kevin Y. Lin, Myung-Ho Bae, Feng Xiong, Eric Pop and Richard I. Masel Polycrystalline Graphene Ribbons as Chemiresistors Advanced Materials 24

Article first published online: 23 NOV 2011 | DOI: 10.1002/adma.201102663

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Polycrystalline graphene sensors easily obtained through chemical vapor deposition (CVD) have been developed for chemical sensing. We show that linear defects or continuous lines of point defects on these sensors result in significantly higher sensitivity than that of pristine graphene and carbon nanotube film sensors. Further sensitivity enhancement is obtained by cutting the graphene into ribbons of width comparable to the linear defect dimensions (micrometers).

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