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Enhanced response to molecular adsorption of structurally defective graphene
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10.1116/1.4798649
/content/avs/journal/jvstb/31/3/10.1116/1.4798649
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/31/3/10.1116/1.4798649
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Raman spectra of graphene under various Ar plasma treatment times. The spectra correspond to exposure treatment time of 0 (pristine), 5, 10, and 20 s from bottom to top. (b) The integrated intensity ratios of the D- and G-bands (I/I) as a function of the Ar plasma treatment time.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Gas response of defect-free graphene with two concentrations (10 and 2000 ppm) of NH without a gate voltage. (b) Gate voltage (V) and source-drain current (I) characterization of defect-free graphene under vacuum and 10 ppm of NH with a V = 0.4 mV. (c) The dynamic interaction properties of defective graphene with 10 ppm of NH after 10 s of treatment with Ar plasma. (d) Gate voltage (V) dependence of the source-drain current (I) of defective graphene (10 s of Ar plasma) under vacuum and 10 ppm of NH with a V = 0.4 mV.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Resistance response ratio of graphene to 10 ppm of NH depending on the various Ar plasma treatment times of 0, 5, 10, and 60 s from the bottom to the top. (b) The repeatable response to 10 ppm of NH for the defective graphene with 60 s of Ar plasma treatment.

Image of FIG. 4.
FIG. 4.

(Color online) (a) Conductance response ratio of graphene to 20 ppm of NO with an Ar plasma treatment time of 0, 5, 10, 70, and 110 s from the bottom to the top. (b) The dynamic response to 20 ppm of NO on defective graphene with 10 s of Ar plasma treatment.

Image of FIG. 5.
FIG. 5.

Response ratios of conductance to 20 ppm of NO as a function of the Ar plasma treatment time. The data were taken at the response time of 25 min.

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/content/avs/journal/jvstb/31/3/10.1116/1.4798649
2013-04-05
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced response to molecular adsorption of structurally defective graphene
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/31/3/10.1116/1.4798649
10.1116/1.4798649
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