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Control of electron transport related defects in in situ fabricated single wall carbon nanotube devices
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10.1063/1.2354450
/content/aip/journal/apl/89/13/10.1063/1.2354450
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2354450

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic diagram of the SWCNT device, where Au electrodes are defined by EBL followed by deposition of of Ti and of Au and catalyst islands are fabricated by a second EBL step and subsequent deposition of of Al and of Fe. (b) Scanning electron microscope image showing an as-grown SWCNT suspended between two Au electrodes as indicated by the arrow; the Au electrodes are separated by approximately .

Image of FIG. 2.
FIG. 2.

A representative high defect SWCNT device. (a) curves measured at room temperature and for . (b) as a function of gate voltage for and . (c) Differential conductance as a function of bias and gate voltage for measured by superimposing a small ac voltage on top of .

Image of FIG. 3.
FIG. 3.

Differential conductance as a function of gate voltage ( vs ) of two low defect SWCNT devices measured at and under a small ac voltage between the drain and source, . (a) Four-peak shell structure characteristic of a SWCNT quantum dot. (b) In this SWCNT device, interdot tunneling splits each of the otherwise equally spaced Coulomb blockade peaks into two peaks in a weakly coupled double quantum dot system. (c) Differential conductance as a function of bias and gate voltage of the device in (b) at and under .

Tables

Generic image for table
Table I.

Range of growth parameters, the number of samples (in parentheses), and the corresponding electron transport related defect levels of SWCNT devices.

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/content/aip/journal/apl/89/13/10.1063/1.2354450
2006-09-29
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Control of electron transport related defects in in situ fabricated single wall carbon nanotube devices
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/13/10.1063/1.2354450
10.1063/1.2354450
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