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Charge dynamics and electronic structures of monolayer graphene with molecular doping
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10.1063/1.4752131
/content/aip/journal/apl/101/11/10.1063/1.4752131
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/11/10.1063/1.4752131

Figures

Image of FIG. 1.
FIG. 1.

(a) The refractive index n and extinction coefficient k for the triazine-doped monolayer graphene. In the inset, we show the Raman-scattering spectra of the triazine-doped and undoped monolayer graphene. (b) The optical absorption coefficient of the triazine-doped film compared with that of the undoped monolayer graphene.

Image of FIG. 2.
FIG. 2.

(a) Room-temperature optical transmission spectra of a bare silicon substrate, triazine-doped, and undoped monolayer graphene. (b) Real part of the room-temperature optical conductivity spectrum of the triazine-doped monolayer graphene (solid line). The various terms in the fits are also shown (dashed line): the Drude band and two Lorentz oscillators. The inset shows the temperature dependence of the Drude plasma frequency and the carrier relaxation time.

Image of FIG. 3.
FIG. 3.

Measured optical sheet conductance spectra (solid line) of the triazine-doped and undoped monolayer graphene at 10 K along with the theoretical spectrum (dashed line). The inset shows the temperature dependence of the Drude conductivity.

Tables

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Table I.

Parameters of a Drude-Lorentz fit for the room-temperature transmission data. All units are in cm−1.

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/content/aip/journal/apl/101/11/10.1063/1.4752131
2012-09-13
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Charge dynamics and electronic structures of monolayer graphene with molecular doping
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/11/10.1063/1.4752131
10.1063/1.4752131
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