Author : Yongho Choi
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (65 download)
Book Synopsis Growth, Fabrication, and Characterization of Carbon Nanotubes, Nanotube Films, and Nanowires by : Yongho Choi
Download or read book Growth, Fabrication, and Characterization of Carbon Nanotubes, Nanotube Films, and Nanowires written by Yongho Choi and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Furthermore these grids provide a low cost, mass producible, efficient, reliable, and versatile platform for direct TEM, AFM, SEM, and Raman analysis of as-grown nanomaterials, eliminating the need for any post-processing growth. We also explored fabrication and characterization of single-walled carbon nanotube films which are three-dimensional films of tens of nanometers thickness, consisting of an interwoven mesh of single-walled carbon nanotubes. We demonstrate, for the first time, patterning of SWNT films down to submicron lateral dimensions as small as 50 nm using e-beam lithography and inductively coupled plasma (ICP) etching. This simple and efficient "top-down" patterning capability developed could open up tremendous opportunities for integrating single-walled nanotube films into a wide range of electronic and optoelectronic devices. Furthermore, we fabricate and characterize the effect of device geometry on the dark current of metalsemiconductor- metal (MSM) photodetectors based on SWNT film-GaAs Schottky contacts. We observed that dark currents of the MSM devices scale rationally with device geometry, such as the device active area, finger width, and finger spacing. These results open up the possibility of integrating SWNT films as transparent and conductive Schottky electrodes in conventional semiconductor electronic and optoelectronic devices.