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Transition from direct tunneling to field emission in carbon nanotube intramolecular junctions
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10.1063/1.2838353
/content/aip/journal/apl/92/4/10.1063/1.2838353
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/4/10.1063/1.2838353
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) curve of hole transport across the junction in the sample TJ1431 at . The upper inset shows the AFM image of the device, in which the diameters of the bar tube and stem tube are and , respectively (scale ). The lower inset shows the transfer characteristic of the bar tube recorded at . (b) plot of the curve shown in (a). The blue and red lines are the fits of logarithmic and of linear dependence of , respectively. The dotted line denotes the transition voltage at which the tunneling mechanism changes. Also shown are drawings of the barrier shape in the two different transport regimes.

Image of FIG. 2.
FIG. 2.

(a) plot of the curves for hole transport across the junction in sample TJ1331 at . The blue and red lines are the fits of logarithmic and of linear dependence of , respectively. The inset shows the AFM image of the device, in which the diameters of the bar tube and stem tube are and , respectively (scale ). (b) plots at temperature from 20 (bottom) to (top) with steps. The dotted line corresponds to the voltage at which the tunneling mechanism changes. (c) Arrhenrius plots generated from the temperature-dependent curves. The solid lines are linear fits. The lower data set corresponds to drain voltage at 2, 6, and , while the upper data set corresponds to drain voltage at 50, 54, and .

Image of FIG. 3.
FIG. 3.

Comparison of the plots between E1-E2 segment (a) and E1-E3 segment (b) of the sample TJ1331. The measurement conditions were the same with that in Fig. 2.

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/content/aip/journal/apl/92/4/10.1063/1.2838353
2008-01-29
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Transition from direct tunneling to field emission in carbon nanotube intramolecular junctions
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/4/10.1063/1.2838353
10.1063/1.2838353
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