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PUBLISHED ONLINE: 22 JANUARY 2012 | DOI: 10.1038/NMAT3228 Wetting transparency of graphene
 

Summary: LETTERS
PUBLISHED ONLINE: 22 JANUARY 2012 | DOI: 10.1038/NMAT3228
Wetting transparency of graphene
Javad Rafiee1
, Xi Mi2
, Hemtej Gullapalli3
, Abhay V. Thomas1
, Fazel Yavari1
, Yunfeng Shi2
,
Pulickel M. Ajayan3
* and Nikhil A. Koratkar1,2
*
We report that graphene coatings do not significantly disrupt
the intrinsic wetting behaviour of surfaces for which surface­
water interactions are dominated by van der Waals forces.
Our contact angle measurements indicate that a graphene
monolayer is wetting-transparent to copper, gold or silicon,
but not glass, for which the wettability is dominated by
short-range chemical bonding. With increasing number of

  

Source: Ajayan, Pulickel M. - Department of Mechanical Engineering and Materials Science, Rice University

 

Collections: Materials Science