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Thermal rectification in thickness-asymmetric graphene nanoribbons
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10.1063/1.3659474
/content/aip/journal/apl/99/19/10.1063/1.3659474
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/19/10.1063/1.3659474
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram showing the multi- and single-layer zigzag edge graphene coupling to two heat baths. The two end of the graphene is fixed and the other boundaries are free. The layers can be changed in multi-layer segment, and the right part is fixed as a single-layer. The total length of the GNRs is 5 nm.

Image of FIG. 2.
FIG. 2.

(Color online) Heat current as a function of the temperature difference for armchair and zigzag edge asymmetric graphene nanoribbons. The inset is the temperature difference dependence of the thermal rectification factor. The average temperature T 0 = 320 K.

Image of FIG. 3.
FIG. 3.

(Color online) Temperature dependence of the thermal conductivity in GNRs for opposite directions (R to L and L to R). The temperature difference ΔT = 20 K.

Image of FIG. 4.
FIG. 4.

(Color online) Temperature dependence of thermal rectification factor for two temperature difference. T 0 = 320 K.

Image of FIG. 5.
FIG. 5.

(Color online) Thickness ratio γ dependence of thermal rectification factor for two temperature differences 20 and 60 K, respectively. T0 = 320 K.

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/content/aip/journal/apl/99/19/10.1063/1.3659474
2011-11-07
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermal rectification in thickness-asymmetric graphene nanoribbons
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/19/10.1063/1.3659474
10.1063/1.3659474
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