Fast growth of polycrystalline graphene by chemical vapor deposition of ethanol on copper

Faggio, Giuliana, Capasso, Andrea, Malara, Angela, Leoni, Enrico, Nigro, Maria Arcangela, Santangelo, Saveria, Messina, Giacomo, Dikonimos, Theodoros, Buonocore, Francesco, & Lisi, Nicola (2014) Fast growth of polycrystalline graphene by chemical vapor deposition of ethanol on copper. In 9th Nanotechnology Materials and Devices Conference (NMDC 2014), 12-15 October 2014, Aci Castello, Italy.

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High conductive graphene films can be grown on metal foils by chemical vapor deposition (CVD). We here analyzed the use of ethanol, an economic precursor, which results also safer than commonly-used methane. A comprehensive range of process parameters were explored in order to obtain graphene films with optimal characteristics in view of their use in optoelectronics and photovoltaics. Commercially-available and electro-polished copper foils were used as substrates. By finely tuning the CVD conditions, we obtained few-layer (2-4) graphene films with good conductivity (-500 Ohm/sq) and optical transmittance around 92-94% at 550 nm on unpolished copper foils. The growth on electro-polished copper provides instead predominantly mono-layer films with lower conductivity (>1000 Ohm/sq) and with a transmittance of 97.4% at 550 nm. As for the device properties, graphene with optimal properties as transparent conductive film were produced by CVD on standard copper with specific process conditions.

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ID Code: 87553
Item Type: Conference Paper
Refereed: Yes
Keywords: carbon, ethanol-CVD, copper foils, electropolishing
DOI: 10.1109/NMDC.2014.6997424
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700)
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 IEEE
Copyright Statement: Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Deposited On: 21 Sep 2015 00:14
Last Modified: 03 Jul 2017 15:38

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