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The tunable wettability in multistimuli-responsive smart graphene surfaces
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10.1063/1.4775360
/content/aip/journal/apl/102/1/10.1063/1.4775360
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/1/10.1063/1.4775360
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Plot of the contact angle with time of exposure for irradiated graphene–ethanol film and graphene-isopropanol film with different light irradiation energies: (a) 254 nm, 2 mW/cm2; (b) 254 nm, 20 mW/cm2.

Image of FIG. 2.
FIG. 2.

(a) The reversible hydrophobic and hydrophilic transition of graphene films by alternating pH values from 12 to 2; (b) the shapes of water droplet on corresponding surface under a tilt angle of 0° and 180°, respectively.

Image of FIG. 3.
FIG. 3.

(a) The CAs of graphene films as a function of pH values; (b) Fourier transform infrared spectra of graphene films exposed to different pH conditions; (c) mechanism of switchable wetting performance in graphene films at different pH conditions.

Image of FIG. 4.
FIG. 4.

The CA and the corresponding cos(θ)V switchably changed when the applied electric field was varied.

Image of FIG. 5.
FIG. 5.

The CAs of graphene films varied with the thermal treatment.

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/content/aip/journal/apl/102/1/10.1063/1.4775360
2013-01-09
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The tunable wettability in multistimuli-responsive smart graphene surfaces
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/1/10.1063/1.4775360
10.1063/1.4775360
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