Session W29: Focus Session: Graphene V
2:30 PM–5:30 PM, Thursday, March 8, 2007
Colorado Convention Center Room: 303
Sponsoring Unit:
DMP
Chair: Kirill Bolotin, Columbia University
Abstract ID: BAPS.2007.MAR.W29.14
Abstract: W29.00014 : Graphene-based Silica Composite Thin Films
5:06 PM–5:18 PM
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Abstract 
Authors:
Supinda Watcharotone
Dmitriy Dikin
Sasha Stankovich
Richard Piner
Geoffrey Dommett
Inhwa Jung
Guennadi Evmenenko
Rodney Ruoff
(Northwestern University, Evanston, Illinois)
Shang-En Wu
Shu-Fang Chen
Chuan-Pu Liu
(National Cheng Kung University, Tainan, Taiwan)
Very thin, smooth, transparent, and electrically conductive silica films with embedded graphene-based sheets were fabricated via the sol-gel route. Individual `graphene oxide' sheets exfoliated in water were incorporated into silica sols. Composite films were formed by spin coating and rendered conductive by treatment with hydrazine, followed by curing at 400\r{ }C under nitrogen flow. The films were studied by SEM, AFM, TEM, X-ray reflectivity, XPS, UV-Vis spectroscopy, and the electrical conductivity was measured. Transparent and conductive thin silica composite films approximately 30 nm thick were fabricated on glass and silicon substrates, opening up new possibilities for making glassy materials with moderate conductivity and high optical transparency. Support from NASA ({\#}NCC-1-02037) through the University Research, Engineering and Technology Institute on Bio-inspired Materials and the NSF ({\#}CMS-0510212) is appreciated.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.MAR.W29.14