DocumentCode
3225997
Title
Design and fabrication of single chirality carbon nanotube-based sensors
Author
Cullinan, Michael A. ; Culpepper, Martin L.
Author_Institution
Dept. of Mech. Eng., Massachusetts Inst. of Technol., Cambridge, MA, USA
fYear
2011
fDate
15-18 Aug. 2011
Firstpage
26
Lastpage
29
Abstract
This paper presents a method to fabricate high purity, single chirality CNT-based sensor systems. Ultracentrifugation is initially used to create an 85% pure (6,5) CNT sample. Electrical breakdown is then used to remove the low resistance and low gauge factor CNTs from the sensor. Overall, this increases the gauge factor of the CNT-based piezoresistive sensor from -22.7 to 34.1. This result indicates that the majority of the impurities in the sensor are removed during the fabrication process.
Keywords
carbon nanotubes; centrifuges; chirality; electric breakdown; nanosensors; piezoresistive devices; electrical breakdown; piezoresistive sensor; single chirality carbon nanotube-based sensors; ultracentrifugation; Carbon nanotubes; Electric breakdown; Piezoresistance; Sensor systems; Strain; CNTs; Chirality; Piezoresistive Sensor;
fLanguage
English
Publisher
ieee
Conference_Titel
Nanotechnology (IEEE-NANO), 2011 11th IEEE Conference on
Conference_Location
Portland, OR
ISSN
1944-9399
Print_ISBN
978-1-4577-1514-3
Electronic_ISBN
1944-9399
Type
conf
DOI
10.1109/NANO.2011.6144397
Filename
6144397
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