Fluorographene: a two-dimensional counterpart of Teflon.
A stoichiometric derivative of graphene with a fluorine atom attached to each carbon is reported. Raman, optical, structural, micromechanical, and transport studies show that the material is qualitatively different from the known graphene-based nonstoichiometric derivatives. Fluorographene is a high-quality insulator (resistivity >10(12) Ω) with an optical gap of 3 eV. It inherits the mechanical strength of graphene, exhibiting a Young's modulus of 100 N m(-1) and sustaining strains of 15%. Fluorographene is inert and stable up to 400 °C even in air, similar to Teflon.
School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.
Rahul R
RR
Nair
Wencai
W
Ren
Rashid
R
Jalil
Ibtsam
I
Riaz
Vasyl G
VG
Kravets
Liam
L
Britnell
Peter
P
Blake
Fredrik
F
Schedin
Alexander S
AS
Mayorov
Shengjun
S
Yuan
Mikhail I
MI
Katsnelson
Hui-Ming
HM
Cheng
Wlodek
W
Strupinski
Lyubov G
LG
Bulusheva
Alexander V
AV
Okotrub
Irina V
IV
Grigorieva
Alexander N
AN
Grigorenko
Kostya S
KS
Novoselov
Andre K
AK
Geim
D006108:Graphite / Q000737:chemistry*; D054879:Halogenation; D046529:Microscopy, Electron, Transmission; D011138:Polytetrafluoroethylene / Q000737:chemistry*; D013059:Spectrum Analysis, Raman
D006108:Graphite; D011138:Polytetrafluoroethylene