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Electronic and thermoelectric properties of assembled graphene nanoribbons with elastic strain and structural dislocation
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10.1063/1.4800777
/content/aip/journal/apl/102/14/10.1063/1.4800777
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/14/10.1063/1.4800777
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The experimentally fabricated GNW and its straight counterpart GNR sharing the same width. The GNW is made of two alternating armchair GNRs with widths of 9 and 6, hence denoted as ( ). The GNR is armchair-edged with a width of 9 (AGNR-9) (more notation details in Ref. 12 ). Both systems are hydrogenated and arrows indicate uniaxial tension applied in the periodic direction.

Image of FIG. 2.
FIG. 2.

(a) Stress-strain relation of the GNW (solid line with circles) and GNR (dashed line with squares). The inset figure shows the linear elastic behaviors of both the GNW and GNR for the small strain range. (b) Electronic bandgap versus strain of the GNW. (c) Phonon thermal conductance and (d) maximum ZT versus strain of the GNW at room temperature.

Image of FIG. 3.
FIG. 3.

Atomic structures of (a) the GNW ( ) and (b) its dislocated counterpart. Both systems are periodic in the horizontal direction with two unit cells shown.

Image of FIG. 4.
FIG. 4.

(a) Phonon thermal conductance versus temperature of the GNW (black) and dislocated counterpart (red). (b) Electrical conductance Ge , (c) thermal power S, and (d) thermoelectric figure of merit ZT versus chemical potential μ at room temperature (T = 300 K) of the GNW (black) and dislocated counterpart (red). The zero in the chemical potential is chosen at the Fermi level.

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/content/aip/journal/apl/102/14/10.1063/1.4800777
2013-04-08
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electronic and thermoelectric properties of assembled graphene nanoribbons with elastic strain and structural dislocation
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/14/10.1063/1.4800777
10.1063/1.4800777
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