Micro-Mechanical Bending (M2 B) method for Carbon Nanotube (CNT) based sensor fabrication
Vertically aligned carbon nanotubes (VACNTs forest) array is known to be the darkest material on earth. However, post processing of VACNTs array by micro mechanical bending (M2B) causes the individual CNT to be bent, flattened and reflective. This interesting change in the optical property of C...
| Main Authors: | , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2014
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/43006/ http://irep.iium.edu.my/43006/ http://irep.iium.edu.my/43006/1/Conf_Asyraf_1.pdf |
| Summary: | Vertically aligned carbon nanotubes (VACNTs
forest) array is known to be the darkest material on earth.
However, post processing of VACNTs array by micro mechanical
bending (M2B) causes the individual CNT to be bent, flattened
and reflective. This interesting change in the optical property of
CNT forest opens the gateway, to use it as displacement sensor
both for linear and angular motion. This paper investigates
experimentally how different parameters of M2B process affect
the morphology of the patterned zone which is very important in
fabricating this type of sensor. Micro-mechanical bending is
locally applied to the targeted area in order to change the
physical property of carbon nanotube. The factors that govern
the resultant have been first identified; rotation spindle rate,
bending speed rate, step size and total depth of bend. The
resultant has been analyzed using Field Emission Scanning
Electron Microscopy (FE-SEM) technique to observe the
differences in surface roughness and structural integrity,
revealing their dependence on the machining parameters. |
|---|