Please use this identifier to cite or link to this item:
Title: Large area patterned arrays of aligned carbon nanotubes via laser trimming
Authors: Cheong, F.C. 
Lim, K.Y.
Sow, C.H. 
Lin, J. 
Ong, C.K. 
Issue Date: Apr-2003
Citation: Cheong, F.C., Lim, K.Y., Sow, C.H., Lin, J., Ong, C.K. (2003-04). Large area patterned arrays of aligned carbon nanotubes via laser trimming. Nanotechnology 14 (4) : 433-437. ScholarBank@NUS Repository.
Abstract: We develop a simple to implement, inherently parallel and high throughput technique for the fabrication of large areas of patterned aligned multi-wall carbon nanotube (CNT) arrays deposited on silicon or quartz substrate. This technique makes use of a parallel or converging laser beam from a high power pulsed laser for the destruction of aligned CNTs with a copper grid as lithography mask to define patterned aligned CNT arrays. The wavelength of the laser beam used is 248 nm and the average energy per pulse is 500 mJ. Using this technique, an extensive area of patterned CNT arrays as large as 3 × 5 mm2 can be fabricated without the use of any pre-patterned substrate. In addition, we were able to control the size of the features created by (1) using different copper grids and (2) using a converging beam. Exposing the sample to different numbers of laser pulses allows us to generate families of CNTs with different uniform lengths. Furthermore, using two overlapping grids as a lithography mask, we managed to create a regular array of features with sizes as small as 2.5 μm.
Source Title: Nanotechnology
ISSN: 09574484
DOI: 10.1088/0957-4484/14/4/305
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jan 14, 2021


checked on Jan 14, 2021

Page view(s)

checked on Jan 17, 2021

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.