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Production of a 100-m-long high-quality graphene transparent conductive
film by roll-to-roll chemical vapor deposition and transfer process

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ÕªÒª:A high-quality graphene transparent conductive film was fabricated by roll-to-roll chemical vapor deposition (CVD) synthesis on a suspended copper foil and subsequent transfer. While the high temperature required for the CVD synthesis of high-quality graphene has prevented efficient roll-to-roll production thus far, we used selective Joule heating of the copper foil to achieve this. Low pressure thermal CVD synthesis and a direct roll-to-roll transfer process using photocurable epoxy resin allowed us to fabricate a 100-m-long graphene transparent conductive film with a sheet resistance as low as 150 X /sq, which is comparable to that of state-of-the-art CVD-grown graphene films.
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